分类： zudao

Poster of Spice Girl at the Bottom

　 　 On April 14th, the Japanese film "Spice Girl at the Bottom" was released. It has been almost five years since the last Japanese live-action film "Norwegian Forest" was released in China.

　 　 The film, starring Arimura Kasumi, a popular actress in Japan, is adapted from a true story. It tells the story of Shayega, a beautiful girl with the lowest score, who was admitted to Keio University, the top five famous university in Japan, after a year of hard work.

stage photo

　 　 Let’s take our school in China as an example. This is equivalent to the so-called "miracle" in which high school students rank in the bottom ten, who were destined to be admitted to Peking University after hard work.

Left: Arimura Kasumi; Right: archetypal characters

　 　 When Spice Girl at the Bottom was released in Japan last year, it only won 300 million yen at the box office in the first week. However, due to its high reputation, the film stayed on the charts for three months, and finally the box office was close to 3 billion yen, making it the sixth in the annual box office.

　 　 After the news that the film will be introduced to China came, some insiders said, "It is suggested that all high schools organize students to watch the film, which is really like a dose of chicken blood during the preparation period."

　 　 As a small electricity who has seen the film in advance, it can be said responsibly that this film will really rekindle the fighting spirit of life for you who have no confidence in yourself. However, do you think it will be a style with the speech of the dean at the opening ceremony? That would be wrong about it!

　 　 What’s different about this movie’s inspiration?

　 　 First of all, the heroine Shayega didn’t go through some important events like the characters in our film and television works, and decided to turn over a new leaf. She wanted to take an examination of Keio University, and it was a slap in the face. She thought that "Tokyo University sounds very rustic, and Keio University sounds like a lot of handsome guys", so Ping tian teacher, who was full of confidence, made Keio University’s suggestion her goal. (Dongda lying gun)

Shayega’s knowledge only reaches the level of primary school students.

　 　 Here, let’s take a look at Keio University in Japan. This world-class university in Tokyo is a private university with the most outstanding aspects in politics, law, economy, business and medicine. In the ranking of Japanese university graduates who are most likely to become presidents of listed companies, Keio University ranks first all the year round, and CWUR ranked 34th in the world university in 2015.

　 　 When Ping tian teacher encouraged Shayejia to work hard at Qingda University, she also told her that "there are many female anchors who graduated from there, and many people married into giants after graduation."

Yuki Furukawa and Shô Sakurai also graduated from Keio University.

　 　 Secondly, Shayega in the movie, despite his efforts to stay up late studying for his own goals, has two plots that should not be photographed in China’s movies:

　 　 As a result of studying in Zhisheng High School, Shayega has never studied from the first grade to the high school, and has a carefree eating, drinking and having fun with several friends all day. After deciding to start working hard for Keio University, although she studied hard every day, she didn’t stop eating and singing K with her friends. She took time out to do problems while singing in KTV, and recited English words on her bicycle when she got home from a party with her friends until her best friend said, "We won’t play with you until you are admitted to the university. We sincerely hope that you can be admitted."

　 　 Seeing her playing against time with her friends to study, the impact force is actually greater than seeing her sitting at her desk all day studying hard, especially seeing her riding a bicycle and reciting "she her her hers" on her way home in the rising morning light. This scene is the most people want to put down her mobile phone and return to the long-neglected study.

Shayega endorsed by bicycle.

　 　 The friendship that doesn’t seem to be the main theme in this movie is also the most powerful proof in the sentence "We won’t play with you anymore". A friend is not a person who is happy to eat with you every day. A friend really understands what you need and then gives you the most appropriate help.

　 　 There is also a plot, that is, Shayega can’t help sleeping in the school class because of the rapid progress of his homework in the private school outside the school and staying up late to study every day. When the teacher, who always disliked her, invited her mother to school, her mother not only did not say that she would be strictly disciplined, but also told the teacher that Shayega had too much to cram and studied for a long time every day. "If you don’t sleep in class, when will this child sleep?" How many domestic movies do parents ask teachers to allow students to sleep in class?

Shayega’s mother supported her wholeheartedly from the beginning.

　 　 And the core figures of this film, besides the No.1 female, Shayega, the spice girl at the bottom, and Ping tian teacher who helped her create miracles. This private school (cram school) teacher can also be said to be a kind of unsuccessful person in society. But he always sincerely believes that these "waste wood" students in the eyes of others have the greatest potential. Even if the spice girl gets 0, he will praise her for finishing the paper, which shows that her attitude is not bad. In the end, the heroine said, "I also want to be that kind of person, a person who works hard for the future of others." After watching this movie, I believe all the students who are still at school expect to meet a teacher like Hirata.

In Ping tian teacher’s eyes, no student is a waste.

　 　 As this is an adaptation of a true story, everyone knows that Shayega finally got into Keio University as she wished. After her dream came true, the film was handled with humor and warmth.

　 　 I bet with her that if she could be admitted to Keio University, the male teacher streaking on campus was photographed like this.

　 　 Realizing her goal and growing up under the influence of Ping tian teacher and her mother, she finally eased the relationship with her father.

　 　 This movie can give people direct inspiration, but it is not a bowl of inspirational chicken soup, or it is a stimulant with no side effects and lasting efficacy, which will be more appropriate.

　 　 Unfortunately, few Chinese films in recent years can do it.

　 　 I thought it would make people excited. A Xin, trying to reach the boiling point quickly with a dry phrase "chase after dreams", fell into the bloody and shocking plot.

"Roll! Stills of A Xin

　 　 Adapted from the blind pianist Huang Yuxiang’s true story, Flying Against the Light makes people feel a little warm, but the tone is too small and fresh, but it is on the verge of being reduced to a music video.

Stills of "Flying Against the Light"

　 　 As for mainland inspirational films, I don’t know what the goal of inspirational is after watching them, and become CEO. Marry Bai fumei? Reach the peak of life? Anyway, not all the protagonists in "Chinese Partner" have succeeded in the end.

Stills of "Chinese Partner"

　 　 It is a pity that the box office of movies is far less than that of China’s booming Japan, but I know very well what kind of stories can be called "inspirational" in the world of young people; And what kind of ending can "inspirational" lead to?

Next page: Japanese movies that can encourage you.

　　Wechat is a social platform that we often use in our lives, where we can also send text, pictures, voice, files and many other contents. What should some friends do if they want to switch the input method of WeChat? Let’s take a look at it with Xiaobian!

　　Introduction to WeChat Setting Input Method Course

　　1. Open the WeChat app, bring up the keyboard on the chat page, and click the keyboard icon.

　　2. Click to switch the input method.

　　3. Check the input method to be set.

Kia EV5 provides a variety of driving modes, allowing users to choose according to their own needs. In the standard driving mode, the response of the throttle is relatively soft and not too sensitive, so the driving is relatively stable.

The steering wheel is also very light and the braking force is relatively linear. In addition, the shift paddle behind the vehicle steering wheel can be used to control the dynamics of the kinetic energy recovery system. The left paddle will increase the dynamics and the right paddle will decrease the dynamics. If you keep pulling the left shift paddle, the vehicle will automatically perform an operation similar to braking.

If you want a more intense driving experience, you can choose sports mode. In this mode, the switch of the vehicle will be more sensitive, and you can experience a slight push-back feeling after stepping on it. In addition, the steering feel will be heavier than the normal mode, which will give drivers greater confidence when changing lanes at high speed or driving on mountain roads.

Generally speaking, the driving mode of KIA EV5 is very flexible and can be selected according to personal preference. Whether on urban roads or highways, it can provide a comfortable or intense driving experience. It should be noted that in order to ensure driving safety, don’t switch driving modes frequently during driving.

Military News reporter Guangzhou Branch (Zeng Qiwen Huo Dongxing) In late June, at a preparation meeting for a cross-day flight training of a land aviation brigade in the Guangzhou Military Region, the pilots participating in the training had a copy of "Special Handling Formula". Different from the complicated special handling process in the original Flight Driver’s Manual, the special handling formula scientifically simplifies the helicopter special handling procedure, and simplifies the special handling process of nearly 10,000 words into an 88-word formula.

　　Hexun. com lin xi

　　In the post-epidemic era, domestic third-party institutions are under the dual background of strict supervision and increasing market scale, that is, for third-party payment institutions, the current payment industry is facing both opportunities and challenges. There is a cloud in the Book of Changes: if you are poor, you will change, and if you change, you will pass, and the general rules will last for a long time. For the third-party payment institutions, at present, both at home and abroad are in the digital age, which is an important landmark event of the national team’s digital pace, namely the pilot of digital RMB, which means that the digital process of the payment industry is developing rapidly.

　　Then, under this background, as a third-party payment institution, how can we be flexible in order to achieve a gorgeous turn and cast a solid moat in this digital age to the greatest extent? As a third-party payment institution, as a capillary to activate economic development, how can we use payment to extend the tentacles of the digitalization process to every corner and realize the digital operation of the industries and merchants we serve as soon as possible? As a third-party payment institution, how should we play a good role as a supplement to the strength of the digital action national team and an active practitioner of policies? As a third-party payment institution, how can we better fully mobilize our own corporate advantages and incite this ever-growing trillion-dollar payment market? The "change" and "communication" hidden behind these topics, and third-party payment institutions such as Yinsheng Payment are writing their own answers.

　　Trillion payment market continues to grow, and third-party payment embraces new opportunities.

　　According to the data of "Special Analysis on Digital Development of Third-Party Payment Market in China in 2021" recently released by Analysys, in 2020, China’s mobile payment transaction scale, Internet payment transaction scale and offline code scanning market transaction scale showed a trillion-dollar market scale as a whole, and showed positive annual growth, and the payment industry showed a thriving development scene.

　　Among them, the mobile payment market. In 2020, although the sudden COVID-19 epidemic had a certain negative impact on China’s macro-economy and residents’ daily life, the transaction scale of China’s mobile payment market still maintained an annual positive growth of 23.7% in 2020, and the overall transaction scale of the industry once again hit a record high. This fully reflects the strong anti-risk ability of China’s overall macro-economy and payment industry.

　　In addition, Internet payment. After experiencing a negative growth in the overall transaction scale in 2019, in 2020, the annual transaction scale of Internet payment in China reached 24.95 trillion yuan, an increase of 0.8% compared with 2019; In terms of quarterly growth, except for the first quarter, China’s Internet payment also achieved a positive growth in quarterly transaction scale in the second, third and fourth quarters of 2020.

　　Furthermore, the offline scanning code market. In 2020, the overall transaction scale of China’s offline scanning code market reached 37.5 trillion yuan, an increase of 24.3% compared with 2019, and it still maintained a relatively stable growth trend against the background of COVID-19 epidemic. In this regard, Analysys believes that the substantial growth of the offline scanning code market, in addition to the timely control of the epidemic by the Chinese government and the rapid recovery of residents’ out-of-town consumption, the third-party payment institutions represented by Yinsheng Payment have promoted the digitalization process of merchants, helped various industries to resume production, and helped the whole society to fight the epidemic through various forms such as formalities reduction and exemption, operational support, digital solutions, research and development of online healthy passwords, and assistance in the issuance of electronic coupons, which is also a force that cannot be ignored.

　　Some analysts pointed out that there are great opportunities for the development of the payment industry hidden behind the changes in the objective environment, whether in the early stage of the epidemic or in the post-epidemic era. Whether we can seize this opportunity and achieve "communication" through "change" is very particular about the sense of smell and acumen of a payment institution, as well as the attitude and ability to embrace industry changes and respond positively.

　　Take Yinsheng Payment, a third-party payment institution, as an example. It focuses on B-side and empowers the outside world, and has been deeply involved in the payment industry for more than 10 years. At present, its service merchants have reached tens of millions, the number of transactions has reached hundreds of millions, and the transaction amount has reached trillions. According to public information, Yinsheng Payment Service Co., Ltd. (hereinafter referred to as "Yinsheng Payment") was established in 2009 and headquartered in Shenzhen. It is a subsidiary of Yinsheng Technology Service Group. In 2011, it was awarded the first payment institution with the Payment Business License by the People’s Bank of China, allowing it to engage in Internet payment, mobile phone payment and bank card acquiring business throughout the country. Yinsheng Payment is the first third-party payment institution to support foreign card receipt.

　　At the same time, Yinsheng Payment is a national high-tech enterprise, a member of China UnionPay, a founding shareholder of Networked Clearing Co., Ltd., a director of China Payment and Clearing Association and a vice-president of Shenzhen Bank Card Acquisition Industry Association. It is also a member of five international card organizations: Mastercard, Visa, Diners Card, AE and JCB. Moreover, Yinsheng’s payment business covers the whole country, covering education industry, intelligent manufacturing, RV industry, communication industry, FMCG industry, manufacturing industry, retail and wholesale industry, catering industry, property industry, logistics and distribution, insurance enterprises and other industries. In terms of bank card receipt, it has always been in the forefront of the country and has been ranked among the top ten in the country for many years.

　　Successfully renewed the payment license again and reached a new level with digital RMB.

　　In the digital age, for payment institutions, it is necessary to constantly enhance their own scientific and technological strength, and use science and technology to empower the outside world to truly solve payment-related problems for the vast number of merchants and enterprises. In the fierce industry competition, the successful renewal of payment license is a powerful proof of a powerful payment institution. In May this year, the People’s Bank of China issued the "Public Information on the Renewal of Payment Business License of Non-bank Payment Institutions in May 2021", which showed that Yinsheng’s payment license was successfully renewed, and its business types included Internet payment, mobile phone payment and bank card receipt, covering the whole country.

　　The successful renewal of payment license will undoubtedly get a pass for payment institutions that are in the current fierce wave of digital transformation and upgrading. At present, digital RMB, as an important landmark event in the digital age, has officially entered the pilot work after six years of development. As early as August 2020, with the Ministry of Commerce officially issuing the Notice on Printing and Distributing the Overall Plan for Comprehensively Deepening the Innovation and Development of Service Trade, China’s digital RMB officially began to be piloted in Shenzhen, Chengdu and Suzhou. In addition, in October 2020, the first large-scale "public beta" of digital RMB began in Shenzhen. Since then, digital RMB has been piloted in Suzhou, Beijing, Shanghai, Chengdu and other cities.

　　Some analysts pointed out that the increasing number of cities in the pilot project of digital people means that the development process of comprehensive digital RMB is also accelerating, and as a third-party payment institution, especially the payment institution that successfully renewed its payment license this year, actively deploying digital RMB business is undoubtedly another good way to realize its own development.

　　Li Nan, an associate professor in the Finance Department of Antai school of economics and management, Shanghai Jiaotong University, once said, "If the whole economic and financial system of our country is compared to a human body, then the payment system composed of financial institutions dominated by commercial banks is the aorta, while the third-party payment that goes deep into retail is the capillary. Both RMB and digital RMB are blood flowing in the blood vessels. Blood and blood vessels are interdependent, not competitive, and there is no problem that one party replaces the other."

　　In addition, Mu Changchun, director of the digital currency Research Institute of the People’s Bank of China, believes that China has always supported the coordinated development of various payment methods, and digital RMB and general electronic payment tools are in different dimensions, both complementary and different. Digital RMB will provide a new general payment method for the public, which can improve the diversity of payment tools and help improve the efficiency and security of the payment system. Digital RMB is mainly based on cash payment voucher (M0), mainly used for retail payment, aiming at improving the level of financial inclusion, and learning from electronic payment technology and experience to form a useful supplement.

　　From this point of view, in the digital age, if payment institutions can use their own technology and devote themselves to promoting the landing and development of digital RMB, they will inject fresh development momentum into payment institutions in the future.

　　It is understood that in terms of digital RMB payment, Yinsheng Payment is actively exploring the application of blockchain in the financial field, and actively responding to the national call to promote the landing of digital RMB and accelerate the layout of digital RMB business. Specifically, up to now, Yinsheng Payment has built an aggregate acceptance terminal that fully supports credit card swiping, code scanning, China Unionpay Quick Pass and digital RMB payment, and completed the upgrade iteration of the intelligent acceptance terminal. Some analysts pointed out that under the background of the country’s active promotion of digital RMB, Yinsheng Payment responded positively and made a difference. Such "change" will bring broader development opportunities for its future development to a new level.

　　Technology empowers "payment+ecology" to help millions of merchants operate digitally.

　　Promoting the promotion and landing of digital RMB is only one stroke in the process of digital transformation and upgrading for Yinsheng Payment. As far as Yu Yinsheng Payment is concerned, it is a vision to be committed to "becoming the benchmark of technology-based business service industry", and it is the initial intention of its digital transformation and upgrading to "superimpose comprehensive payment ability, technology ability and ecological service ability, build digital basic platform, digital service, digital management, digital marketing and other products and services, continuously empower customers, and promote millions of merchants to realize digital operation".

　　In this great action of digital transformation and upgrading, science and technology are the support, the foundation and guarantee of all upgrading and transformation. For payment institutions with innovation as their genes, in this digital revolution, all institutions are giving full play to their own scientific and technological research and development strength, constantly producing new solutions, and completing digital upgrades for the industries, enterprises and merchants they serve.

　　In order to further enhance their core competitiveness, the third-party payment institutions in the market have continuously increased their investment in technology research and development in recent years, and constantly upgraded their products and services. In addition to cultivating internal strength, payment institutions also strive to empower their own technology to related industries with digital needs such as education, retail and property. Taking Yinsheng Payment as an example, in April, 2021, Yinsheng Payment and Shandong Qilu Bank Binzhou Branch solved the difficulties in collecting and paying fees for many preschool education institutions through the comprehensive solution of education and training industry-Little Y Excellent Learning Payment, combined with the mode of embedding the payment portal in WeChat official account of the bank, and realized "online and offline linkage payment+rapid entry of student data+efficient payment management" to help educational institutions complete digital upgrading.

　　In addition, it is reported that we have adhered to innovation-driven Yinsheng payment, actively practiced technology empowerment, and launched many industry payment solutions and intelligent service products, such as the lightweight smart retail cashier solution "Little Y Genie", the whole industry cashier solution "Little Y Cashier", the enterprise wallet account system solution "Yinzhangtong", and the entertainment and leisure industry solution "e-Pay Entertainment" and other one-stop, differentiated integrated payment solutions. As well as digital management tools such as Yinshengxiao Y Butler APP, Yinshengli Code Receiving Card, Yinshengyun Horn, Yinsheng cloud print, Yinsheng Card Voucher Platform, and IoT Cloud Platform, to ensure the safety of users’ funds and add wings to the digital management of merchants and enterprises.

　　From the perspective of specific products and services, it is obvious that the achievements of digital transformation and upgrading of Yinsheng Payment are obvious to all, and it has also won the recognition and applause of the industry. For example, Yinsheng Payment won the VISA 2018 Outstanding Partner Award for acquiring business, and Yinsheng Payment’s "Yinsheng Quick Scan" won the Best Intelligent Terminal Market Performance Award; Another example is that in 2021, Yinsheng Payment won the honorary title of "Shenzhen Famous Brand" again, and Yinsheng Payment won the "UnionPay Excellent Partner Award".

　　In fact, aside from the specific products and services paid by Yinsheng, starting from its role as a subsidiary of Yinsheng Group, we can capture that there is actually a strong ecological support behind Yinsheng Payment. According to public information, Yinsheng Payment is a subsidiary of Yinsheng Technology Service Group. The five strategic sectors of "payment, communication, finance, technology and investment" of the Group can provide strong ecological support, form the unique ecological service capability of Yinsheng Payment, and build a moat for its own competition in the payment industry.

　　In addition to the specific products and services of digital upgrading and transformation and the strong ecological support behind them, in recent years, Yinsheng Payment has always adhered to development strategies such as "innovation", "deep cultivation" and "penetration", forming four core competitiveness of "innovative product system, comprehensive service capability, stable and safe technology and diversified value-added services". Moreover, on the basis of these four core competitiveness, Yinsheng Payment has deeply sunk the county-level market, deepened market segments, provided customers with personalized customized payment products and solutions, and integrated payment and marketing services, and promoted enterprise development with "payment+ecology" digital business services.

　　Some insiders pointed out that in the wave of digital revolution, as a third-party payment institution, only by actively embracing the "change" in it, that is, embracing the "change" in the payment industry to promote the "change" of self-innovation, thus forming a self-powerful barrier and building a moat in this great revolution; Moreover, in this great change, only by actively embracing national policies and actively participating in them can we conform to the historical trend and stride forward to achieve "communication"

　　　[Disclaimer] This article only represents the viewpoint of the cooperative contributor, not the position of Hexun. Investors should operate accordingly, at their own risk.

1905 movie network news　On October 30th, the film premiere was held in Chongqing. It is worth mentioning that the premiere ceremony was held on a cruise ship at Chaotianmen Wharf in Chongqing. The ships floating on the river swayed with the river wind, much like children being coaxed by their mothers.

Unique design stunning opening, everyone sent warm wishes to the film.

Wang Zhi, film director, screenwriter and co-director, actor, actor, actor, actor and actor Lei Pengyu appeared at the premiere ceremony in turn. The little actor Ma Yirui was called by the host, but she didn’t see him for a long time. At this time, the music "The Big Day" sounded, and Ma Yirui, wearing a purple gauze skirt, began to sing affectionately, with her skirt and singing flying in the air. She slowly walked to the other side of the deck and stopped in front of her little Lei mother: "Mom, I miss you. This familiar and soft voice evoked memories of scenes in Huang Xiaolei’s heart, and then she burst into tears. The two people who played mother and daughter embraced each other deeply in the play, and the embraced figure turned into a pleasant scenery.

The film’s creative team was all present to have face-to-face communication and interaction with the audience, and special guests such as film producer Li Juan and producer Li Quanwei attended to help out.

Previously, the producer collected more than 70 enthusiastic fans and interviewed them. They told stories between themselves and their mothers. Through the lens, everyone said the phrase "Mom, I love you" that can’t be easily said on weekdays. The video of just over a minute filled the audience with tears, and the host interacted with the audience in a warm atmosphere, and then began to play movie tidbits.

Producer Li Juan gave a speech on the stage, gave her blessings to the film on the spot, and shared with you her initial intention of choosing this film: "The choice of this work is not only to show people the Bayu culture, but also the result of starting with love. Motherly love has been passed down from generation to generation, and there are thousands of ways for mothers to love their children. The film conveys a unique maternal love. It is expected that the audience will go into the cinema to feel and discover their mother’s love. "

The film’s creative team gathered on the stage for the start-up session, and the blue gold-plated sand shone in the sun, reflecting the theme of "The cinema film" Only Mom is Good in the World "was a box office hit". At the premiere, the ultimate trailer of the film was shown. Huang Xiaolei demonstrated the tenderness and tenacity of a single mother, and also showed off the Chongqing dialect in the film, showing the lofty sentiments of Chongqing women. The audience was intrigued by all kinds of doubts revealed in the film, and they couldn’t help but get nervous with the deepening of the plot. They all said that they couldn’t wait to go into the cinema to find out.

With the end of the final announcement, lovely children walked onto the stage, holding carnations and shaking them gently, slowly gathering into a pink flower forest. "Only a mother is good in the world, and a child with a mother is like a treasure." Young and bright songs resounded throughout the river bank, and the audience under the stage was silent, enjoying the warmth and beauty of the moment with the swaying hearts of flowers.

Huang Xiaolei almost "tore" He Da, and Jeffery Ji was in tears.

The film "Only Mom is Good in the World" has attracted the attention and expectation of many netizens since its screening, which is also the result of the escort of the team behind the film. At the premiere ceremony, the masters shared their stories during filming and some of their own mental experiences.

Director Kong Lingping said that he was a very naughty director and wanted to create a relaxed and pleasant atmosphere for everyone to work. However, when it comes to digging deep into realism in movies, he said frankly and seriously that as a film and television worker, he hopes to make the audience pay more attention to social reality through movies, and it is a good thing that movies are controversial. Only when there is controversy can there be a topic, and the discussion on the topic can arouse everyone’s deep thinking.

Huang Xiaolei, an actress, revealed that she was deeply touched by the long-lost meeting with everyone today, and revisiting the old place made her recall all kinds of feelings during the filming. She shared with you that when filming a "Looking for Daughter" scene, the whole crew ran around in different scenes, just like a happy "Chongqing fun run Team", and when the crew was moved to tears at the shooting scene, her eyes were a little more warm. Huang Xiaolei also broke the news that he Da was very excited when he met him, and even wanted to hit him, which led to a series of laughter at the scene. The confrontation between them continued outside the play, which even aroused the audience’s curiosity to see what had happened.

Jeffery Ji, an actor, expressed his feelings of cooperation with Huang Xiaolei by exclaiming "She is worthy of being my senior sister", and also shared his experience that it was difficult for him to get rid of the character’s emotions after he entered the play. He said it was a moving, sad and special film, and even couldn’t help crying: "Motherly love is the greatest love in the world. I hope you don’t do anything to your mother that you will regret, but give them as much companionship and happiness as possible."

Zhou Weitong, an actress, revealed that Li Mengyun’s character is very different from her own. When trying to figure out the role, she often observes friends who have similar experiences around her and expresses them with her own understanding. She talked about the role as if it were still in the plot. Although she is not yet a mother, she realized that it is not easy to be a mother, and she was deeply touched by the softness and tenacity of human nature.

Ma Yirui, a young actor, broke the news that Xiaolei’s mother captured her heart with a bowl of Chongqing noodles at the shooting scene, and her favorite plot was when she was with her mother in the small noodle restaurant in the play. She expressed her love for her mother in the simplest and straightforward language: "This movie let me know that my mother also has weaknesses. I hope I can play with her more at ordinary times and not make her angry."

Actor He Da subverted the villain role Ran Jianlin this time. He said that this is a "bad guy" with quotation marks. Although he is a villain in the script, he did not regard this role as a specific bad guy. In the process of shaping, he did a lot of psychological research on the role itself. If he interprets the role’s emotions thoroughly, he will not have too many complicated emotions. At the same time, he also hopes to break his accustomed "decent" image in front of the audience. Being able to play various types of roles is an actor’s professional quality.

Actor Lei Pengyu said: "Only a mother is good in the world" is a multi-faceted film. He believes that every character has his own unique starting point, just like everyone in the movie has different feelings and attitudes towards Xiaomi, and various collisions evoke things hidden under the surface of human nature, and the role he plays is a person with a strong sense of reality, which can resonate with everyone. He also shared that he can experience all kinds of life in different roles, which is a lucky and happy thing.

Family suspense comedy, making people sad and happy.

The film extended the IP of the song "Only Mom is Good in the World", telling the story of single mothers Zhang Keyi (Huang Xiaolei) and Zhang Xiaomi (Ma Yirui) who insisted on their love. With the integration of suspense and comedy elements, the theme and story of the film were clearly and profoundly displayed.

Touching mother-daughter affection, suspenseful story development, and relaxed and happy funny scenes triggered the audience’s tears and laughter. After the movie, everyone enthusiastically discussed a series of social and practical problems presented by the film and had an interesting interaction with the creative team.

　　Xinhua News Agency, Beijing, May 28th　

　　Joint statement of People’s Republic of China (PRC) and the Republic of Equatorial Guinea on establishing a comprehensive strategic partnership.

　　At the invitation of the Supreme Leader of President People’s Republic of China (PRC), President and Head of State of Equatorial Guinea teodoro obiang nguema mbasogo paid a state visit to People’s Republic of China (PRC) from May 27th to May 31st, 2024.

　　During the visit, the two heads of state held talks in a cordial and friendly atmosphere, exchanged in-depth views on China-Equatorial Guinea, China-Africa relations and international and regional issues of common concern, and reached broad and important consensus. People’s Republic of China (PRC) the State Council Prime Minister Li Qiang and the NPC Standing Committee Chairman Zhao Leji met with President Obiang respectively.

　　1. Both sides agreed that since the establishment of diplomatic relations in 1970, the traditional friendship between the two countries has lasted for a long time, political mutual trust has been continuously enhanced, pragmatic cooperation has yielded fruitful results, and close cooperation in international affairs has effectively benefited the two countries and their peoples, setting an example of sincere friendship, mutual respect and mutually beneficial cooperation among different countries.

　　The two sides spoke highly of the great progress made in bilateral relations since President Obiang paid a state visit to China in 2015. Especially in the face of the severe challenge of the COVID-19 epidemic, the people of China and Equatorial Guinea helped each other and fought the epidemic side by side, once again demonstrating the profound friendship of sharing weal and woe.

　　2. Both sides agreed that in today’s chaotic world, developing countries need to strengthen unity and cooperation more than ever before, and the strategic significance of China-Equatorial Guinea friendly relations is more prominent. In order to further consolidate political mutual trust and deepen and expand pragmatic cooperation in various fields, the two heads of state decided to upgrade bilateral relations to a comprehensive strategic partnership.

　　3. The two sides reiterated their firm support for each other’s independent exploration of development paths that are in line with their national conditions, and will continue to strengthen exchanges and mutual learning of experience in governing the country. Equatorial China highly appreciates the Chinese-style modernization by the people of under the leadership of the Communist Party of China, and believes that Chinese-style modernization has expanded the path choice and practical plan for developing countries to modernize.

　　China supports the administrative efforts of President Obiang and the Democratic Party of Equatorial Guinea, and believes that under the leadership of President Obiang, all the projects identified in Equatorial Guinea’s "Vision 2035" will be realized as scheduled, and new achievements will be made in national construction.

　　四、双方强调，在涉及彼此核心利益问题上相互支持是中赤几高水平政治互信的应有之义。中方重申坚定支持赤几方维护国家独立及主权、安全和发展利益，坚决反对外部势力干涉赤几内政。赤几方重申坚定奉行一个中国原则，认为世界上只有一个中国，台湾是中国领土不可分割的一部分，中华人民共和国政府是代表全中国的唯一合法政府，坚决反对任何形式的“台湾独立”，反对外部势力干涉中国内政，坚定支持中国政府为实现国家统一所作的一切努力。赤几方重申支持中方在涉港、涉疆、涉藏等问题上的立场。

　　五、双方同意进一步发挥元首外交引领作用，密切两国政府、立法机构、政党等各部门、各层级的交流与合作。

　　六、赤几方积极响应并坚定支持最高领袖主席提出的共建“一带一路”倡议，高度评价共建“一带一路”倡议在促进共建国家经济发展和民生改善方面发挥的积极作用。双方将共同编制并签署关于共同推进“一带一路”建设的合作规划，愿在和平合作、开放包容、互学互鉴、互利共赢的丝路精神指导下，秉持共商共建共享原则，加强两国发展战略对接，立足各自比较优势和发展需求，积极推进各领域合作，力争取得更多务实成果。

　　7. Equatorial Guinea highly appreciates and firmly supports the global development initiative, global security initiative and global civilization initiative put forward by the Supreme Leader, and believes that the three global initiatives provide strategic guidance for promoting the building of a community of human destiny. China appreciates Equatorial Guinea’s active participation in the Group of Friends of the Global Development Initiative. The two sides agreed to further strengthen cooperation within the framework of global development initiatives, global security initiatives and global civilization initiatives. Equatorial Guinea welcomes China’s Global Artificial Intelligence Governance Initiative and Global Data Security Initiative, and appreciates China’s efforts to enhance the rights of developing countries in global governance in the fields of artificial intelligence, network and data.

　　8. The two sides agreed to further expand trade and investment cooperation and deepen cooperation in agriculture, fisheries, energy and mining, infrastructure and other fields. Equatorial Guinea fully affirmed the important role played by the Framework Agreement on Special Arrangements for Economic and Trade Cooperation between the Two Countries in promoting bilateral cooperation in infrastructure construction and other fields, and is willing to continue to further strengthen bilateral pragmatic cooperation under the Framework Agreement. Equatorial Guinea promised to strengthen communication with enterprises in China, actively implement existing cooperation projects, and further improve the business environment to provide good conditions for China enterprises to operate in Equatorial Guinea. China welcomes Equatorial Guinea to actively participate in China International Import Expo, China-Africa Economic and Trade Expo and China Import and Export Fair, and supports Equatorial Guinea to enter the China market with more high-quality agricultural and fishery products. China will encourage more powerful China enterprises to invest in Equatorial Guinea, so as to help it diversify its economy.

　　The two sides agreed to continue to give full play to the mechanism of the mixed economic and trade committees of the two countries and promote cooperation in the fields of digital economy, green development and blue economy.

　　9. The two sides spoke highly of the achievements of cooperation between the two countries in the fields of culture, tourism, education, youth, media, sports, public health, epidemic prevention and control, and agreed to further expand people-to-people exchanges, deepen people-to-people friendship, and consolidate the foundation of friendship. The two sides are willing to support the cooperation between Chinese and Equatorial Guinean educational institutions in the fields of personnel training, student exchange, language teaching, vocational skills training, digital education, etc., implement the "100-school cooperation plan between Chinese and African universities", and support the joint research of Chinese and Equatorial Guinean universities. The two sides will strengthen exchanges and cooperation and promote more citizens to travel to each other’s countries. Equatorial Guinea thanked China for its long-term support in the field of health care in Equatorial Guinea. China reiterates that it will continue to support the construction of the public health system in Equatorial Guinea within its capacity, and is willing to communicate closely with Equatorial Guinea, continue to send high-level China medical teams, carry out "small but beautiful" free clinic visits such as "Bright Walk", promote the cooperation of counterpart hospitals, and help the China-Equatorial Guinea Friendship Hospital to give full play to its effectiveness.

　　X. The two sides agreed to further strengthen exchanges and cooperation in the field of peace and security, close high-level exchanges between the armed forces and police forces of the two countries, and strengthen cooperation in personnel training, equipment technology, prevention of terrorist attacks, joint performances and training, and combating transnational crimes.

　　The two sides agreed to strengthen cooperation on international and multilateral affairs. The two sides reiterated that all countries, big or small, are equal, oppose hegemonism and power politics, and unanimously agreed to adhere to true multilateralism, resolutely defend the international system with the United Nations at the core, the international order based on international law, and the basic norms of international relations based on the purposes and principles of the UN Charter, promote an equal and orderly world multipolarization and inclusive economic globalization, and promote the building of a community of human destiny.

　　12. Both sides agreed that the publication of the Five Principles of Peaceful Coexistence 70 years ago was a major initiative in the history of international relations and made a historic contribution to promoting the establishment of a fair and reasonable new type of international relations. The international community should further carry forward the Five Principles of Peaceful Coexistence, enhance friendly cooperation and promote world peace and development.

　　13. Both sides agreed that the reform of the UN Security Council should support developing countries, including Africa, to play a greater role, expand their representation and voice in the Security Council, and correct the historical injustice suffered by Africa. China positively evaluates the important role played by Equatorial Guinea as a member of the Committee of Ten Heads of State (C10) of the AU Security Council Reform and the positive results of the C10 Equatorial Summit, and is willing to continue to strengthen coordination and cooperation with Equatorial Guinea. Equatorial Guinea reiterated that the African Union’s common position is the only feasible choice to correct the historical injustice suffered by Africa, and appreciated China’s first support for the African Union’s accession to the G20.

　　14. Both sides agreed that the development of human rights is the common cause of all mankind, and the rights to subsistence and development are the primary basic human rights, and human rights exchanges and cooperation should be carried out on the basis of mutual respect and equal treatment.

　　15. The two sides spoke highly of the leading role of the Forum on China-Africa Cooperation in promoting high-level cooperation between China and Africa since its establishment 24 years ago, and agreed to further strengthen consultation and coordination on the affairs of the Forum on China-Africa Cooperation, jointly implement pragmatic cooperation in various fields within the framework of the Dakar Action Plan (2022-2024), and jointly address global risk challenges. The two sides look forward to the new summit of the Forum on China-Africa Cooperation, and believe that the meeting will open a new chapter in China-Africa solidarity and cooperation, provide new opportunities for Africa’s development and prosperity, and inject strong certainty into global peace and stability.

　　16. Both sides agreed that during President Obiang’s visit to China, China and Equatorial Guinea reached extensive and important consensus and signed a series of cooperation agreements, which was a complete success and marked a new stage in the development of bilateral relations. President Obiang sincerely thanked the Chairman of the Supreme Leader and the government and people of China for their warm and friendly reception during his visit, and invited the Chairman of the Supreme Leader to visit Equatorial Guinea at his convenience.

　　This statement was jointly issued by both parties in Beijing on May 28th.

　　There is not a winter that is insurmountable, and there is not a spring that will not come. In the fight against the epidemic and blocking the war, medical workers protect their lives with their lives and bravely resist the raging virus. They are well-deserved people’s heroes on this "battlefield".

Left: Liu Olympic Games Right: Chen Yayun

　　In Jiangmen Central Hospital, Guangdong Province, there are such a pair of post-90s nurses: Liu Aoyun and Chen Yayun, who volunteered after the outbreak. The Olympic Games and the Asian Games joined hands to fight the epidemic, and they are worthy of their shining names and became heroic "health athletes" on the battlefield against the epidemic!

　　Liu Olympic Games: "I am party member and the only male nurse in the department, so I should be at the forefront."

　　In 1992, a boy doll was born, and his aunt learned from TV that the Olympic Games would be held in Barcelona this year, so she suggested naming his parents "Olympic Games". "I hope he can have the same strong body as an athlete, and I hope our country can hold an Olympic Games."

　　Thus, this boy has a resounding name since then: Liu Olympic Games! However, he did not become an athlete, but became a male nurse in the first and second districts of gastrointestinal surgery in Jiangmen Central Hospital. He said, "Medical care can heal the wounded and rescue the dying, which is very sacred. When I applied for the college entrance examination, I chose the nursing major and became a male nurse."

　　The family’s expectation of the motherland’s prosperity has really come true. In 2008, China hosted an Olympic Games that attracted worldwide attention. Liu Olympic Games also has a strong body like an athlete. In 2020, he entered the infection ward of the hospital to fight the "epidemic".

　　On the afternoon of February 11th, he received a phone call from Huang Jinping, the head nurse of the department, telling him to go to the second district for support. The moment he put the phone down, he was excited inside! Before, the department issued a notice to volunteer to form a vanguard against the epidemic. After seeing the notice, everyone enthusiastically signed up. He thought, "So many people signed up, but there is only one place. My working experience is still shallow. Can I have a chance to go?" After receiving the phone call, his uneasy heart settled down ":it’s me!" Selected! "

　　When asked if he was afraid, Liu Olympic said: "I am party member and the only male nurse in the department, so I should be at the forefront." He simply cleaned up and immediately reported to the infected area 2.

　　At 6 o’clock in the afternoon, he came to the second infection area and met the head nurse Yang Xiaoran. From her hoarse voice, she learned that the area had just been set up and was dedicated to treating observation cases. She and her colleagues who arrived first had been working for several days, and they were overworked every day. It was really around the clock. He can feel that the task here is more arduous than expected, and at the same time he is determined to redouble his efforts to ensure the successful completion of the task.

　　On February 28th, a 71-year-old patient named Li Bo (a pseudonym) was admitted to the second infected area. Li Bo has basic diseases such as hypertension, diabetes, heart disease and bilateral vertebral artery stenosis, and usually travels at home by wheelchair. After admission, Liu Aoyun took good care of him, helped him to urinate in the bathroom, and personally fed him medicine.

　　"Rip, let me know if you need to go to the toilet, and I’ll help you."

　　"Rip, do you need to drink water? I will pour it for you. "

　　"Rip, you have been lying on your left side for 2 hours. I suggest you change to your right side to avoid the skin on your left side getting red … …”

　　Liu Olympic Games takes care of Li Bo carefully and tries his best to solve his every need. At 8 o’clock that night, Li Bo had a fever of 39℃, and he was weak and sweaty, and his mental state was poor. He and his colleague nurse Chen Xiumei immediately reported it and gave Li Bo an injection according to the doctor’s advice. During the period, he helped Li Bo to boil water, and Zheng Xiumei helped Li Bo to change clothes at the bedside, bathed in warm water and comforted Li Bo, so that he could rest assured, relax and have a good rest.

　　An hour later, Li Bo’s body temperature dropped to 36.2℃, and his spirit was much better. He also began to have the strength to speak: "Thank you, you have worked hard!" Hearing the simple thanks, they are also very pleased to wear thick protective clothing and sweat, and all the fatigue seems to have vanished.

　　"Anti-‘ Epidemic ’ The battlefield is very much like a sports field, which requires indomitable willpower and abundant hard-core physical strength. I hope we can win the epidemic and stop the war as soon as possible and take off this thick shirt! By then, I want to go to Wuhan and have a look at this heroic city and people. " Liu Olympic said.　

　　Chen Yayun: "I am party member, and I have no family burden. Let me go!" "

　　Like Liu Olympic Games, the name has also brought many interesting experiences to Chen Asian Games. Since childhood, people have been asking her, "Were you born during the Asian Games?" She always laughs and shakes her head. In fact, her name only contains grandpa’s love for her. I hope she will always be lucky and lucky again and again. "This is not luck!"

　　Chen Yayun is a post-90s nurse in the Department of Spinal Orthopaedics and Infection in Jiangmen Central Hospital. The name Chen Yayun has brought her a lot of popularity, and it has really brought her a lot of luck, including being selected to fight the "epidemic"!

　　"Grandpa worshipped the Communist Party of China (CPC) and Chairman Mao all his life. When he was a child, he liked to tell me the story of the people’s liberation in China. The song he sang the most was Dongfanghong. If Grandpa is still alive and the epidemic is current, seeing that I shoulder the responsibility and responsibility of party member, he will definitely support me and cheer for me! " Chen Yayun said proudly.

　　Chen Yayun was born in a rural family. Her parents wanted her to be academically gifted since childhood, and then find a good job. In high school, she once wanted to study medicine, but when the college entrance examination filled in her volunteers, she realized that liberal arts students could not apply for clinical majors. She discussed with her parents, "Then be a nurse!" In this way, Chen Yayun embarked on the road of nursing.

　　Due to busy work, Chen Yayun has not returned to his hometown in Guizhou for the New Year with his parents for five years. This year’s Spring Festival is her wedding day, and she took the opportunity to go home to visit her parents. On the second day of the New Year’s Day, she was still enjoying the happiness at home. I didn’t expect the epidemic situation to become more and more serious, and a group of data was worrying. She is sensitive to the seriousness of the situation, and the hospital must be the main battlefield! So I said goodbye to my family in a hurry and rushed back to the hospital to work! Despite the twists and turns, the plane ticket was booked and refunded, and the high-speed rail ticket was refunded and booked, she finally rushed back to the hospital "like a persevering athlete"!

　　On January 29th, Chen Yayun volunteered to support the front line, waiting for the call of the organization at any time. On February 15, the head nurse called: "Can you go to the infection department for first-line support?"

　　"I am party member, and I have no family burden. Let me go!" Chen Yayun answered firmly. On February 24th, she officially "joined the ranks" and came to the infected area, standing at the forefront of the COVID-19 epidemic. Here, she fought side by side with the diagnosed patients, and she assumed the role of the patients’ families, treating them, fetching water and delivering meals … … The work in hand seems to be never finished. The clothes were soaked and the goggles were dripping, but she did not forget to chat with the patients, listen to their needs and cheer them up.

　　In one month, the patient Chen Shu (pseudonym) was fidgety, almost collapsed and doubted several times in the face of repeated positive test results. Chen Yayun and other colleagues take great care of Chen Shu. Chen Shu also gradually understood that medical staff are fighting side by side with patients, and they are all waiting for the same result.

　　On March 8, the confirmed cases in Jiangmen were cleared, and the whole hospital was immersed in the excitement of staged victory and endless circle of friends, but we did not forget to say that "clearing is not equal to zero risk, and clearing is not equal to ending". And Chen Yayun also went back to the university graduation day and photographed graduation photo, grateful, moved and extremely happy.

　　On March 9, her last night shift ended and she was about to start a 15-day isolation trip. Looking back on this experience for more than a month, she said with emotion: "I am very lucky to know such a brave, lovely and respectable group of comrades-in-arms, and I have gained friendship and growth. Along the way, I deeply feel that we are not alone, that the party is caring for us and that the whole society is caring for us. How lucky we are! "

　　As of March 8th, the nursing staff of Jiangmen Central Hospital actively participated in the special treatment of epidemic situation. They undertook heavy clinical nursing tasks, took care of patients’ isolation treatment in every possible way, and took care of patients’ mental health in every possible way, and fought side by side with doctors!

　　Liu Olympic Games and Chen Yayun are vigorous and promising young representatives in the nursing team. The Olympic Games and the Asian Games are originally the arena for athletes to gallop, the battlefield for a decisive battle, and also the symbol of the pursuit of self-breakthrough, faster, higher and stronger Olympic sportsmanship; But this spring in 2020, "Olympic Games" and "Asian Games" have become the warmest guardians in patients’ hearts. Together, they fight against "epidemic" and save lives with faster speed, higher efficiency and stronger care in the clinical front line! They are "health athletes" worthy of praise!

　　Cctv news(News Network): According to the data released by the National Bureau of Statistics, in October, the added value of China’s high-tech and equipment manufacturing industries above designated size increased by 14.7% and 4.7% year-on-year, respectively, and the growth rate was 0.7 and 0.4 percentage points higher than that of the previous month, respectively, driving industrial growth by 2.2 and 1.6 percentage points, and the driving role for industrial growth continued to increase.

　　From the perspective of industry, in October, the added value of the electronics industry, the largest industry in the industry, increased by 14.0% year-on-year, and the growth rate was 4.5 percentage points faster than that of the previous month; The growth rate of added value of aerospace manufacturing, computer and office equipment manufacturing and pharmaceutical manufacturing is above 15%.

　　At the same time, affected by factors such as the green transformation and upgrading of industries and the expansion of smart consumption demand, the output of emerging products maintained rapid growth. In October, the output of new energy vehicles increased by 127.9% and continued to grow exponentially; The output of solar cells, industrial robots, integrated circuits and monocrystalline silicon also maintained double-digit growth.

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Now it’s 9102, and the idea that installing and upgrading computers is the first choice for SSD hard drives has long been deeply rooted in people’s hearts. In addition, the price of NAND flash memory has been falling for more than a year, and the price of SSD hard drives with a capacity of 1TB has become the mainstream within 1,000 yuan. Moreover, you can buy higher-performance M.2 hard drives instead of SATA hard drives. If you are not afraid of death, you can also consider some brand-name SSD hard drives with a price of nearly 5 gross /GB, and buy them as warehouse disks. Looking back at HDD hard disks that have not been reduced in price for many years, it is not unreasonable that the mechanical hard disk market is dying.

However, HDD hard disk is gradually moving away from the desktop and notebook computer market, which can represent the perfection of SSD hard disk? Not really. Nowadays, SSD hard drives are "really fragrant" in the environment of great price reduction, but it still has a problem that makes people feel bad — — Drop speed. Players who have used SSD hard disks for a long time should have an understanding of the speed drop (some people actually don’t realize this problem). Today, we will talk about the speed drop of SSD hard disks in Super Class.

At present, there is no accurate definition of SSD hard disk speed drop. Here, we will interpret it as "performance degradation" according to the literal speed drop, and analyze various reasons and solutions that may lead to SSD speed drop at present.

SLC, MLC, TLC to QLC transition of ·SSD drop speed

Is the upgrade of flash memory type also the reason for the speed drop of SSD hard disk? If you think about it carefully, it’s true. In fact, we can say that it is the constant change of flash memory types that leads to the increasingly serious problem of SSD hard disk speed drop. If we still use SLC flash memory, the problem of speed drop is long gone, but forget about SLC flash memory hard disk. The best flash memory means the most expensive cost. Even if manufacturers still dare to use SLC flash memory as the main force, ordinary consumers can’t afford it.

From SLC, MLC to TLC to QLC, the capacity of cell unit is increasing, and the cost is decreasing accordingly. However, the inherent characteristics of NAND flash memory determine that the more potential, the more complicated the control, and the longer the time to write data, resulting in a significant decline in performance (mainly writing performance and good reading performance).

The hard disk performance of TLC and QLC flash memory we see now is not bad, and the writing speed of SATA interface can also reach 500MB/s, and the writing performance of M.2 interface can reach 1GB/s, 2GB/s or even higher depending on the number of PCIe 3.0 channels, but this performance is after magic, and it is the performance in an ideal situation.

The above picture shows the actual performance of the 660P hard disk of Intel QLC flash memory. With the increase of the written data, the original performance of QLC will be exposed after the cache space is used up, and the writing speed will drop to 100MB/s, which is not much faster than that of HDD hard disk.

Garbage collection GC and TRIM with ·SSD dropping speed

When it comes to the problem of SSD hard disk speed drop, old players may still remember the non-drop function promoted by Puckett in his own M-series high-performance SSD hard disk in the early years. This selling point attracted many SSD users at that time, considering that MLC flash memory was still the main force in the market at that time, SSD hard disk speed drop was mainly caused by the main control management mechanism at that time.

Specifically, it is the problem of GC garbage collection and TRIM instruction of SSD. If you have read our previous popular science articles, you will know that the special feature of NAND flash memory lies in the way of writing files, which needs to be deleted piece by piece. Because of various writing and deleting operations, messy data will be left on SSD, some of which are still useful and some of which are invalid. After the GC function is started, the useful data will be copied to another block, and the original storage area will be clear, and the empty disk level will be restored to prepare for writing new data.

In addition to GC garbage collection mechanism, Microsoft also introduced TRIM instruction in Windows 7 and later systems, which is an instruction based on SATA controller. Once there is file deletion or partition formatting, the operating system will send TRIM instruction to the SSD master controller to tell it that the data somewhere has been deleted, so SSD knows that those data can be moved and those cannot be moved, and then it can be emptied to restore performance.

GC and TRIM can also affect the speed drop of SSD hard disk, but now these functions have become the basic functions of SSD, and the support of operating system is not a problem, because these two problems lead to much less speed drop of SSD.

840 EVO deceleration gate of ·SSD deceleration.

From SLC to MLC to TLC and QLC, not only the performance of flash memory is gradually declining, but also its reliability is declining, which is reflected in the fact that the physical layer is due to the more charge bits stored in TLC and QLC flash memory, and the control is more complicated. As time goes by, the activity of electrons will also be lost. When TLC flash memory first came out, Samsung 840 Evo experienced the problem of performance degradation due to long-term non-use.

The 840 EVO speed-dropping event means that when it reads the old files stored for more than several weeks or months, the speed is seriously not as good as expected. According to the official index, the reading speed of 840 Evo exceeds 450MB/s, but when reading the old files, the speed is as low as 60MB/s, and the speed is obviously reduced.

For this problem, Samsung also made an investigation later, saying that "with the help of flash memory management software algorithm, SSD usually corrects the state of the Cell unit over time, and the read-retry operation of 840 Evo is too radical, which leads to the decline of the overall read performance. This situation will only happen when there is no data change in its internal Cell unit. If the data of this unit is subsequently migrated or overwritten, there will be no problem of performance degradation. "

Finally, Samsung released a new firmware to solve the problem of 840 Evo speed drop. On this issue, Samsung did not admit that this is a problem of TLC flash memory, but in the early stage of development, TLC flash memory had some problems from flash memory to main control management, and it was not unexpected that this problem appeared.

Main control overheating protection of ·SSD speed drop

The above-mentioned SSD speed drop is all about flash memory, but the SSD master control will actually affect the SSD speed drop problem, which is mainly caused by the overheating protection problem of SSD hard disks, and basically there is no such problem on SATA hard disks, mainly after a large number of high-performance M.2 hard disks are listed.

SSD master control is essentially a CPU based on ARM or self-developed architecture. In order to improve performance, SSD master control is often multi-core. Three-core or even four-core master control is not uncommon, and heating under high load is also a problem. For high-performance SSD hard disks with PCIe and M2 interfaces, it is normal for the temperature in the main control area to exceed 90°C or even go to Baidu due to the small space and concentrated heating. In order to avoid high-temperature damage, SSD hard disks will have a temperature control mechanism, and if the temperature is detected to be too high, the frequency will be reduced, thereby reducing the heating.

However, reducing the main control frequency will actually reduce SSD performance. In order to solve the problem of heat loss, the most common means is to improve the heat dissipation effect. For example, Samsung used a better package in the main control design of the 970 Pro hard disk, and the whole main control used a metal shell package to improve the thermal conductivity.

Of course, the more direct way is to install a heat sink, so you can see that all kinds of M.2 hard disks are becoming popular. Before Yingchi, we also introduced the armored M.2 hard disk, using a heat sink with amazing thickness. Although it looks ugly, the effect is overwhelming.

In addition to the reasons for the speed drop mentioned above, there are actually some other factors that will affect the normal performance of SSD, such as 4K misalignment, synchronous/asynchronous flash memory, AHCI/IDE mode, etc. However, these operations are not the main problem now. In the past, the main problem was that SSD was not popular, and many people did not understand the settings. Now Windows system itself has added many SSD optimization settings, and third-party tools have also supported SSD.

Cache structure of SSD hard disk: from DRAM Cache to SLC Cache

The above content about SSD speed drop involves all aspects, but for a single SSD hard disk, the problem of SSD speed drop is not so complicated. Let’s get down to business. Let’s take a look at the basic structure of modern SSD hard disks first:

No matter SATA or M.2 hard disk, their PCB layout is similar. The M.2 hard disk above is DRAM cache, main control and NAND flash memory from left to right, in which main control and NAND flash memory are essential, and DRAM cache may or may not be available. The main thing that is not available is low-end SSD hard disk. Reducing DRAM cache can reduce the cost, especially in the past two years, because of the large price increase of DRAM memory, low-end SSD is more popular without DRAM cache, and they will use HMB host memory cache to make up for it.

For high-performance SSD hard disk, DRAM cache is indispensable, because even DDR3 cache, its bandwidth can reach several GB/s or even more than ten GB/s, which is much higher than the performance of SSD flash memory, which is very helpful to improve performance. Now Samsung and other companies have begun to use DDR4-2133 as cache on high-end SSDs.

As for the DRAM cache capacity, 128MB, 256MB and 512MB are common. With the increasing size of SSD hard disk, 1GB cache is not uncommon. Generally speaking, 1TB flash memory with 1GB DRAM cache, the higher the better.

DRAM cache is the first cache structure of modern SSD hard disk. Reading data from hard disk is to see if there is any needed data in DRAM cache first. If there is, it will be used here first, so the speed will be very fast. If there is no search in NAND flash memory in the cache, the speed will be NAND flash memory, which is relatively much slower.

Generally speaking, DRAM cache is the icing on the cake for SSD hard disk, and there is also a speed drop from DRAM cache to NAND flash memory, but usually this speed adjustment is not felt by everyone. After all, the cache capacity is still too small and it is easy to exceed it.

SSD hard disk still depends on the performance of NAND flash memory in most cases, but we all know that the writing performance is declining from SLC to MLC to TLC and QLC flash memory, and the original TLC and QLC flash memory are very ugly. Without modification, the writing performance of QLC flash memory may not be 100MB/s, and HDD hard disks are faster than it.

However, in the TLC and QLC flash drives actually sold, the performance is very strong regardless of SATA or M.2 interface. In the product like Samsung 970 Evo, the nominal write performance of the 250GB version can reach 1500MB/s, but it is the performance after using the Write Acceleration technology, and the actual performance is about 300MB/s, which is four times worse.

SSD write acceleration technology is a general term, and the common scheme is SLC cache, which means literally — — Use SLC as cache to speed up, because SLC flash memory has the best performance.

In the era of MLC flash memory, SLC cache technology is not necessary. Samsung 970 Pro does not use this technology, while 970 EVO does, but SLC cache is not without cost, because SLC can only store 1-bit data, TLC is 3-bit data, and QLC is 4-bit data. Using SLC cache on TLC/QLC flash memory means sacrificing capacity for performance. This is a devil’s exchange. The ugly point is whether you choose X-flavored chocolate or not.

Using SLC cache can improve the writing speed of SSD and make it look NB, but it means losing some space, depending on the scheme chosen by the manufacturer. If the whole scheme is adopted, it means that only 1/3 or even 1/4 of the capacity is available.

Using SLC cache is like a roller coaster.

More importantly, even if SLC cache is used, once the written data exceeds the cache capacity, the SSD performance will have to show its original shape. At this time, the SSD hard disk will drop speed, because the original TLC/QLC performance will have to be used after the cache acceleration space is exceeded. It will be ugly at this time, and the writing speed of about 100MB/s is normal.

Of course, the additional benefit brought by SLC cache is not without it, that is, the loss is smaller when the power is unexpectedly cut off. After all, SLC stores 1-bit data.

In each SSD manufacturer, SLC Cache technology has different names, Samsung is called TurboWrite, SanDisk is called nCache, and Micron has Dynamic Write Acceleration dynamic cache acceleration technology. In fact, these technologies are also divided into different types, including full SLC Cahce and partial space for caching, among which full simulation has the best effect, but it is the biggest waste of space. So now SLC Cache technology is generally to set aside some space, and the specific choice of how much space is comprehensively considered by manufacturers, which can be less than 10% or 20%.

In addition, there are actually dynamic and static SLC Cache regardless of the whole or partial space simulation, and these two technologies actually have their own advantages and disadvantages. Micron’s DWA is the dynamic write cache acceleration technology, and its advantage is that users can maintain good acceleration performance after using different capacities.

In a word, the major manufacturers have their own choices in SLC cache, and the cache space, cache allocation and acceleration strategy may be different, and there is no difference in technical route. However, in any case, after the SLC cache space is exhausted, the performance of SSD will be exposed to the due level, that is, the original performance of TLC/QLC.

This is the point. If the SSD hard disk uses more space, the remaining blank capacity will be less, which is more unfavorable for cache acceleration, so the performance will be lower. This is also the root cause that many people feel slower and slower when using SSD hard disks. This is how the speed drop is often said.

For the problem of SSD speed drop, except for specific problems, if the speed drop is caused by the exhaustion of cache, there is really no good way, unless you are not afraid of the trouble of dumping data, always erase the SSD hard disk safely.

If you are very concerned about the speed drop, the only choice now is to buy MLC hard disk or large-capacity SSD, the capacity is not less than 1TB, the bigger the better.