Facebook changed its name to Meta; Linux 5.16 is expected to significantly improve I/O performance; Microsoft Edge 95 released | SiFu Weekly

40s News Express

• Douban responded to delete user album pictures: low probability bug, will be fixed in the next version
• Apple allows developers to provide customers with other payment options
• Facebook sues Ukrainian hackers, 178 million user data was sold
• Artificial Intelligence Talent Report: School recruitment salary increased by 56%, talent gap reached 1.7 million
• Google Facebook accused of conspiracy to undermine Apple's privacy protection
• Nvidia's acquisition of ARM is subject to EU antitrust investigation
• Facebook announces its name change to Meta
• Single core IOPS exceeded 10 million, Linux 5.16 is expected to greatly improve I/O performance
• Microsoft: Will train 250,000 network security practitioners
• Docker 20.10.10 released
• Qt 6.2.1 officially released
• Microsoft Edge 95 released
• Spring Cloud 2021.0.0-M3 released
• Node.js v16.13.0 released
• Android Studio Bumblebee Beta 2 released

Industry Information

Douban responded to delete user album pictures: low probability bug, will be fixed in the next version

Recently, some netizens revealed that their pictures saved in their mobile phone photo albums were deleted by Douban App for no reason, and the pictures need to be retrieved from the recycle bin, causing heated discussions.

On October 27, Douban issued an announcement in response, stating that individual users reported that “Huawei mobile phone prompts Douban to delete pictures”. When the network environment is poor, the system believes that when multiple replies with pictures are sent on the post page at the same time, the user will be uploaded by mistake. The picture in is deleted as a cache file. The probability of this bug is low and will be fixed in the next version.

Douban stated that if there is no user authorization, Douban will not read the pictures on the device, and it is technically unable to do so; when saving pictures, it will apply for storage permissions and access necessary files.

Apple allows developers to provide customers with other payment options

Apple has updated its App Store rules to allow developers to contact users directly on payment matters. According to the updated App Store rules on the 22nd, developers can now directly contact consumers to discuss alternative payment methods without having to pay Apple a 15% or 30% commission. When Apple reached a legal settlement with a small application developer in August this year, it proposed to change the relevant rules.

Facebook sues Ukrainian hackers, 178 million user data was sold

According to foreign media reports, FaceBook has sued the Ukrainian hacker Alexander Solonchenko, claiming that it was suspected of capturing data from more than 178 million users. According to reports, Solonchenko conducted data scraping from January 2018 to September 2019, and began selling data on black market forums in December 2020. In this regard, Facebook requires hackers to compensate and prohibit them from accessing Facebook or selling the data they crawled.

Artificial Intelligence Talent Report: School recruitment salary increased by 56%, talent gap reached 1.7 million

On October 25, the "2021 Artificial Intelligence Talent Report" released by the Lagou Recruitment Data Research Institute showed that the talent demand index in the artificial intelligence industry in 2021 increased by 103% compared with last year, and the algorithmic talent gap reached 1.7 million.

Among them, the average salary of algorithm engineers recruited from school is as high as 21,700 yuan, which is 80% of the average salary of social recruits for the position, which is an increase of 7,700 yuan from last year's school recruiting, an increase of 56%.

Google Facebook accused of conspiracy to undermine Apple's privacy protection

Recently, the attorney generals of 12 states in the United States once again pointed out in antitrust lawsuits against Google that Google and Facebook colluded to undermine Apple's efforts to provide users with privacy protection features. The revised prosecution read: “The two companies have been working together to strengthen Facebook’s ability to identify users whose cookies have been blocked on Apple devices and Safari browsers, thereby bypassing a major technology company’s efforts to provide users with stronger privacy protection. effort."

Nvidia's acquisition of ARM is subject to EU antitrust investigation

American graphics chip giant Nvidia plans to spend 54 billion US dollars to acquire British semiconductor design company ARM, but this transaction has encountered a major setback. On Wednesday, local time, the EU antitrust agency launched a large-scale antitrust investigation into this acquisition, because of concerns that the acquisition will lead to an increase in semiconductor prices, customers face fewer choices, and industry innovation will be weakened.

Facebook announces its name change to Meta

According to foreign media reports, on Thursday, local time in the United States, at the annual Connect conference, the social media giant Facebook announced that it officially changed its name to Meta, and the company will begin trading under the new stock symbol "MVRS" on December 1. Mark Zuckerberg becomes CEO and Chairman of the new company. It is understood that "Meta" comes from the "meta universe".

Single-core IOPS exceeded 10 million, Linux 5.16 is expected to greatly improve I/O performance

Jens Axboe is the head of the Linux block subsystem. A week ago, Jens Axboe started a new round of optimization of the kernel's I/O performance in order to obtain 8 million IOPS on a single CPU core. After a week of hard work, each core can achieve about 8.9 million IOPS. Just when everyone thought that this number had reached the limit of the hardware he used and there was no more room for optimization, he successfully reduced the IOPS of each core this week. Pushed to 10 million.

From the screenshots shared by Jens Axboe on social media, you can see that he has achieved 10 million IOPS on a physical CPU core with the latest Linux kernel patch.

In order to achieve these performance improvements, Jens Axboe is mainly optimized in the kernel block / NVMe / IO_uring code, but it also touches some memory management code. His optimizations to achieve the best performance of each core I/O can be found in the perf-wip branch of linux-block. These performance optimization patches have now been added to the merge queue for the next cycle and should be merged in Linux 5.16.

Microsoft: Will train 250,000 network security practitioners

According to foreign media reports, with the increase in cyber attacks, the United States is in urgent need of cyber security practitioners, and the number of vacancies in this position has reached 465,000. Microsoft decided that in the next 4 years, Microsoft will cooperate with 150 community colleges to train about 250,000 network security practitioners to resist more and more network threats. It is reported that the average annual salary of these positions will reach 105,000 US dollars.

The latest technology trends

Docker 20.10.10 released

Docker 20.10.10 is now released.

main update content

• Repair platform matching logic;
• Added support for clone3 system call to the default seccomp policy to support running containers based on the latest versions of Fedora and Ubuntu;
• Update the hcsshim library to fix errors in sparse file handling in the container layer;
• Do not roll back when the update service fails;
• Update Golang runtime to Go 1.16.9, etc.

Qt 6.2.1 officially released

Qt 6.2.1 is now released. This is the first patch version of the Qt 6.2 series. It contains more than 220 bug fixes at the top of the Qt 6.2.0 version. Qt 6.2.2 is expected to be released at the end of November.

main update content

• Update SQLite to v3.36.0;
• Support the use of TLS 1.3 PSK callback;
• Fix the query of font aliases that share names with other fonts;
• Make Yu Gothic UI the main backup font for Japanese;
• Eliminate the ambiguity of fonts of different widths, etc.

Microsoft Edge 95 released

Microsoft recently released Microsoft Edge 95 as part of its regular four-week update cycle.

main update content

• The download experience is improved, and the download support is extended to PWA and WebView;
• Edge browser new efficiency mode;
• Now supports adding free-form text boxes to PDF documents;
• It is more convenient to update the saved password in the browser;
• Automatically create an account (currently this function can only be used on a limited number of websites)

Spring Cloud 2021.0.0-M3 released

Spring Cloud 2021.0.0-M3 has been released, code-named "Jubilee", this version is compatible with Spring Boot 2.6.0-M3.

Main update content

• Multiple function enhancements and bug fixes
• Spring Cloud Function introduced initial support for gRPC;
• Add Exemplars support;
• Add a new Kubernetes DiscoveryClient implementation

Node.js v16.13.0 released

Node.js v16.13.0 (LTS) has been officially released, this version marks Node.js 16.x has entered the LTS stage, code-named'Gallium'. The 16.x series will continue as "Active LTS" until October 2022.

After that, it will enter the "Maintenance" phase until the end of its life cycle in April 2024.

Android Studio Bumblebee Beta 2 released

The second Beta version of Android Studio 2021.1.1 (code-named "Bumblebee") has been released.

main update content

• Fix the problem that the ASM API will fail the test when using the built-in function in the tested code;
• Fixed the issue that the application would crash after incremental build on the API level 30 simulator;
• Databinding cannot be used with platform tools 31.0.3; platform-tools/api/api-versions.xml can no longer be used;
• When running through Gradle, test failures in Studio will not display test output, etc.