Backend Development
PHP Tutorial
Loop test the efficiency of php reading and writing to Redis and shared memory (shm) under Centos
Loop test the efficiency of php reading and writing to Redis and shared memory (shm) under Centos
This article mainly introduces the efficiency of loop testing PHP's reading and writing of Redis and shared memory (shm) under Centos. It has certain reference value. Now I share it with you. Friends in need can refer to it
Redis, memcache and shared memory all read memory data. In order to test who is more efficient, I did a fair test under my Centos virtual machine.
Test parameters
Environment: Centos (configuration ignored), language: PHP, WebServer: Nginx, number of tests: 10000, character type and length: string (1024 ）
Preparation test
<?php //测试数据 $arr = array( 1 => array ('id' => '4146','attacksdfdsfdsddddddddddd' => '5.45','atk_class' => '神圣级','wufang' => '4.9','def_class' => '超神级','cefang' => '4.9','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizzinesssdfdsfdsfdsfdsfds_class' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F', ), 2 => array ('id' => '414ddffff7','attack' => '5.45','atk_class' => '神圣级','wufang' => '4.95','def_class' => '超神级','cefang' => '4.95','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizziness_clsdfdsfdsfdsfdsfdsass' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F', )); $str = json_encode($arr); echo strlen($str); //输出1024
Conduct 10,000 write tests on redis
<?php
$redis = new Redis();
$redis->connect('127.0.0.1',6379);
$redis->auth('310c8cabcdefghf2d8abcdefd44496ac80');
$start = microtime(true) ;
for($i = 0; $i<10000; $i++) {
$redis->set('key', $str);
}
echo microtime(true) - $start; //执行5次，大概平均结果为 1.7016470432281 秒Conduct 10,000 write tests on shared memory (shm)
<?php
$key = 0x4337b123;
$size = 1024;
$shmid = @shmop_open($key, 'c', 0644, $size);
$start = microtime(true);
for($i = 0; $i<10000; $i++) {
shmop_write($shmid, $str, 0);
}
@shmop_close($shmid);
echo microtime(true) - $start; //执行5次，大概平均结果为 0.0025370121002197 秒Conduct 10,000 read tests on redis
<?php
$redis = new Redis();
$redis->connect('127.0.0.1',6379);
$redis->auth('310c8cabcdefghf2d8abcdefd44496ac80');
$start = microtime(true) ;
for($i = 0; $i<10000; $i++) {
$redis->get('key');
}
echo microtime(true) - $start; //执行5次，大概平均结果为 2.1236310005188 秒Conduct 10,000 read tests on shared memory (shm)
<?php
$key = 0x4337b123;
$size = 1024;
$shmid = @shmop_open($key, 'c', 0644, $size);
$start = microtime(true);
for($i = 0; $i<10000; $i++) {
shmop_read($shmid, 0,1024);
}
@shmop_close($shmid);
echo microtime(true) - $start; //执行5次，大概平均结果为 0.0021078586578369 秒Result list
Redis Read: 2.1 seconds Write: 1.7 seconds
Shm Read: 0.0021 seconds Write: 0.0025 seconds
It can be seen that the effect is very different.
The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:
php implements shared memory process communication function (_shm)
PHP code automatic detection (git/ svn integrates PHP_CodeSniffer)
The above is the detailed content of Loop test the efficiency of php reading and writing to Redis and shared memory (shm) under Centos. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1672
14
1428
52
1332
25
1277
29
1256
24
Composer: Aiding PHP Development Through AI
Apr 29, 2025 am 12:27 AM
AI can help optimize the use of Composer. Specific methods include: 1. Dependency management optimization: AI analyzes dependencies, recommends the best version combination, and reduces conflicts. 2. Automated code generation: AI generates composer.json files that conform to best practices. 3. Improve code quality: AI detects potential problems, provides optimization suggestions, and improves code quality. These methods are implemented through machine learning and natural language processing technologies to help developers improve efficiency and code quality.
What is the significance of the session_start() function?
May 03, 2025 am 12:18 AM
session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.
How to understand DMA operations in C?
Apr 28, 2025 pm 10:09 PM
DMA in C refers to DirectMemoryAccess, a direct memory access technology, allowing hardware devices to directly transmit data to memory without CPU intervention. 1) DMA operation is highly dependent on hardware devices and drivers, and the implementation method varies from system to system. 2) Direct access to memory may bring security risks, and the correctness and security of the code must be ensured. 3) DMA can improve performance, but improper use may lead to degradation of system performance. Through practice and learning, we can master the skills of using DMA and maximize its effectiveness in scenarios such as high-speed data transmission and real-time signal processing.
How to handle high DPI display in C?
Apr 28, 2025 pm 09:57 PM
Handling high DPI display in C can be achieved through the following steps: 1) Understand DPI and scaling, use the operating system API to obtain DPI information and adjust the graphics output; 2) Handle cross-platform compatibility, use cross-platform graphics libraries such as SDL or Qt; 3) Perform performance optimization, improve performance through cache, hardware acceleration, and dynamic adjustment of the details level; 4) Solve common problems, such as blurred text and interface elements are too small, and solve by correctly applying DPI scaling.
H5: Key Improvements in HTML5
Apr 28, 2025 am 12:26 AM
HTML5 brings five key improvements: 1. Semantic tags improve code clarity and SEO effects; 2. Multimedia support simplifies video and audio embedding; 3. Form enhancement simplifies verification; 4. Offline and local storage improves user experience; 5. Canvas and graphics functions enhance the visualization of web pages.
How to use MySQL functions for data processing and calculation
Apr 29, 2025 pm 04:21 PM
MySQL functions can be used for data processing and calculation. 1. Basic usage includes string processing, date calculation and mathematical operations. 2. Advanced usage involves combining multiple functions to implement complex operations. 3. Performance optimization requires avoiding the use of functions in the WHERE clause and using GROUPBY and temporary tables.
macOS and Linux: Compatibility and User Experience
Apr 30, 2025 am 12:05 AM
macOS and Linux have their own advantages in compatibility and user experience. macOS has excellent compatibility within the Apple ecosystem, and the user experience is simple and intuitive; Linux has outstanding hardware compatibility and software flexibility. The user experience varies from distribution to distribution, emphasizing personalization and control.
Recommended Laravel's best expansion packs: 2024 essential tools
Apr 30, 2025 pm 02:18 PM
The essential Laravel extension packages for 2024 include: 1. LaravelDebugbar, used to monitor and debug code; 2. LaravelTelescope, providing detailed application monitoring; 3. LaravelHorizon, managing Redis queue tasks. These expansion packs can improve development efficiency and application performance.
