Tag：performance
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Time：2021-10-27
C + + mode npm install node-gyp -g mkdir demo && cd Demo && npm init Create fib.cc Create binding.gyp node-gyp configure build Create test index.js file node-gyp https://github.com/nodejs/nod… In order to test the performance comparison, the algorithm uses Fibonacci’s recursive implementation.fib.cc: // addon.cc #include <node.h> namespace demo { using v8::Exception; using v8::FunctionCallbackInfo; using v8::Isolate; […]
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Time：2021-10-27
well! Hello, everyone! FromFreeRedisSince the opening of the warehouse, many people have used it in the production environment. It is stable and maintained by Lao Ye. On the other hand, we are optimizing the functional modules of freeredis. Please note that this information does not mean that there is a problem with the current […]
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Time：2021-10-27
The highly anticipated windows 11 was officially launched on October 5, but then many bugs were revealed. Just now, amd confirmed that upgrading windows 11 will reduce the performance of AMD ryzen dragon game by 15%. At present, AMD and Microsoft said they would solve the bug by issuing a patch. According to AMD, when […]
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Time：2021-10-25
Introduction:Nacos 2.0 improves the performance by about 10 times by upgrading the communication protocol, framework and data model, and solves the performance problems gradually exposed after the release of Nacos 1.0. In this paper, through the pressure test of Nacos 1.0, Nacos 1.0 and the process of upgrading Nacos 2.0, Nacos 2.0 makes a comprehensive […]
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Time：2021-10-25
Out of interest in Linux operating system and strong desire for underlying knowledge, this article is sorted out. This paper can also be used as an index to test basic knowledge. In addition, this paper covers all aspects of a system. Without perfect computer system knowledge, network knowledge and operating system knowledge, it is impossible […]
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Time：2021-10-25
Basic introduction difficulty Multi graphics management generate storage Class classification Unique identification Check ID Zindex stack event click double-click Right click Drag roll animation requestAnimationFrame Minute hand rendering Multi object motion Motion curve strategy mode Object collision isPointInPath isPointInStroke Mathematical pickup performance optimization Framing rendering Split screen rendering multiple coincident canvas Reasonable context assignment operation […]
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Time：2021-10-23
innodb_flush_log_at_trx_commit You can define the transaction submission method of MySQL MySQL write files have two caches. One is the log buffer defined in memory, and the other is the OS cache mapped from disk to memory. MySQL can call flush to actively refresh the log buffer to the disk memory mapping, or call fsync to […]
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Time：2021-10-23
I recently studied and analyzed SWISPerformance of the project created above. Surprisingly, one of the most performance intensive methods is excellent spatie/laravel-permission Made of bags. After consulting more information and research, it is found that there may be a significant improvementPerformance issues 。 Now that the solution is clearly stated, it’s easy to write code to […]
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Time：2021-10-22
OpenMLDB Summary This week, 8 pull requests were merged, 5 pull requests were added, 11 issues were closed and 20 issues were added. A total of 84 documents were modified, 6677 lines of code were added and 511 lines of code were deleted. Merged Pull Requests feat: support spark.master config to run job in yarn […]
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Time：2021-10-21
preface This series is derived from”Manon turned over”The reading activity initiated by the knowledge planet is sponsored by the [email protected] UDP does not lose packetsRecommended, there are some alternatives in this reading activity. We abandoned traditional books and began to introduce the top graduate course < 6.824 >, which was the inventor of worm virus […]
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Time：2021-10-21
With the large-scale application of microservices, there are more and more distributed transactions across microservices. What is the performance of distributed transactions? How much performance will be reduced? Can it meet business needs? These indicators are very concerned about whether distributed transactions can be successfully introduced into production applications. This paper attempts to deeply analyze […]
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Time：2021-10-21
Do C + +, of course, can not care about performance. But when did you start to care about performance optimization? The speech on C + + performance tuning at the 2020 global C + + and system software technology conference was packed and praised. Now let’s let the speaker, Mr. Wu Yongwei, the chief […]
