测试环境
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ lscpu
Architecture: i686
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 37
Stepping: 2
CPU MHz: 1199.000
BogoMIPS: 4521.76
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 3072K
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ free -m
total used free shared buffers cached
Mem: 1869 1654 215 265 4 526
-/+ buffers/cache: 1123 745
Swap: 3320 1 3319
??未安装opcache测试??
lyolzj@localhost ~ $ ab -n 1000 -c 10 http://localhost/wordpress/
This is ApacheBench, Version 2.3
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.6.3
Server Hostname: localhost
Server Port: 80
Document Path: /wordpress/
Document Length: 8886 bytes
Concurrency Level: 10
Time taken for tests: 79.554 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 9099000 bytes
HTML transferred: 8886000 bytes
Requests per second: 12.57 [#/sec] (mean)
Time per request: 795.536 [ms] (mean)
Time per request: 79.554 [ms] (mean, across all concurrent requests)
Transfer rate: 111.70 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.0 0 0
Processing: 258 793 163.7 771 2227
Waiting: 249 777 163.1 755 2227
Total: 258 793 163.7 771 2227
Percentage of the requests served within a certain time (ms)
50% 771
66% 822
75% 849
80% 867
90% 926
95% 963
98% 1040
99% 1901
100% 2227 (longest request)
lyolzj@localhost ~ $ ab -n 1000 -c 100 http://localhost/wordpress/
This is ApacheBench, Version 2.3
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.6.3
Server Hostname: localhost
Server Port: 80
Document Path: /wordpress/
Document Length: 8886 bytes
Concurrency Level: 100
Time taken for tests: 81.475 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 9099000 bytes
HTML transferred: 8886000 bytes
Requests per second: 12.27 [#/sec] (mean)
Time per request: 8147.464 [ms] (mean)
Time per request: 81.475 [ms] (mean, across all concurrent requests)
Transfer rate: 109.06 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.0 0 5
Processing: 232 7758 1533.2 7921 9906
Waiting: 220 7740 1532.2 7908 9893
Total: 237 7758 1532.3 7921 9906
Percentage of the requests served within a certain time (ms)
50% 7921
66% 8258
75% 8488
80% 8682
90% 9020
95% 9289
98% 9531
99% 9674
100% 9906 (longest request)
安装opcache
lyolzj@localhost /usr/local/src $ sudo wget http://pecl.php.net/get/zendopcache-7.0.5.tgz
lyolzj@localhost /usr/local/src $ sudo tar -zxf zendopcache-7.0.5.tgz
lyolzj@localhost /usr/local/src $ cd zendopcache-7.0.5/
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ ls
config.m4 zend_accelerator_debug.c
config.w32 zend_accelerator_debug.h
CREDITS ZendAccelerator.h
LICENSE zend_accelerator_hash.c
Optimizer zend_accelerator_hash.h
README zend_accelerator_module.c
shared_alloc_mmap.c zend_accelerator_module.h
shared_alloc_posix.c zend_accelerator_util_funcs.c
shared_alloc_shm.c zend_accelerator_util_funcs.h
shared_alloc_win32.c zend_persist.c
tests zend_persist_calc.c
zend_accelerator_blacklist.c zend_persist.h
zend_accelerator_blacklist.h zend_shared_alloc.c
ZendAccelerator.c zend_shared_alloc.h
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo /usr/local/php5.4/bin/phpize
Configuring for:
PHP Api Version: 20100412
Zend Module Api No: 20100525
Zend Extension Api No: 220100525
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo ./configure --with-php-config=/usr/local/php5.4/bin/php-config
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo make
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo make install
Installing shared extensions: /usr/local/php5.4/lib/php/extensions/no-debug-non-zts-20100525/
配置opcache
在php.ini中添加
zend_extension= /usr/local/php5.4/lib/php/extensions/no-debug-non-zts-20100525/opcache.so
[opcache]
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 2549/php-fpm.conf)
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo kill 2549
lyolzj@localhost /usr/local/src/zendopcache-7.0.5 $ sudo /usr/local/php5.4/sbin/php-fpm -y /usr/local/php5.4/etc/php-fpm.conf
lyolzj@localhost ~ $ ab -n 1000 -c 10 http://localhost/wordpress/
This is ApacheBench, Version 2.3
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.6.3
Server Hostname: localhost
Server Port: 80
Document Path: /wordpress/
Document Length: 8886 bytes
Concurrency Level: 10
Time taken for tests: 27.116 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 9099000 bytes
HTML transferred: 8886000 bytes
Requests per second: 36.88 [#/sec] (mean)
Time per request: 271.158 [ms] (mean)
Time per request: 27.116 [ms] (mean, across all concurrent requests)
Transfer rate: 327.70 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.4 0 5
Processing: 190 270 55.9 260 628
Waiting: 185 263 54.2 254 625
Total: 190 270 56.1 260 632
Percentage of the requests served within a certain time (ms)
50% 260
66% 282
75% 301
80% 313
90% 341
95% 368
98% 398
99% 443
100% 632 (longest request)
lyolzj@localhost ~ $ ab -n 1000 -c 100 http://localhost/wordpress/
This is ApacheBench, Version 2.3
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.6.3
Server Hostname: localhost
Server Port: 80
Document Path: /wordpress/
Document Length: 8886 bytes
Concurrency Level: 100
Time taken for tests: 28.363 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 9099000 bytes
HTML transferred: 8886000 bytes
Requests per second: 35.26 [#/sec] (mean)
Time per request: 2836.330 [ms] (mean)
Time per request: 28.363 [ms] (mean, across all concurrent requests)
Transfer rate: 313.28 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 1.7 0 7
Processing: 86 2700 515.9 2804 3322
Waiting: 81 2692 515.3 2797 3311
Total: 94 2700 514.3 2804 3322
Percentage of the requests served within a certain time (ms)
50% 2804
66% 2853
75% 2886
80% 2909
90% 3025
95% 3127
98% 3186
99% 3223
100% 3322 (longest request)
结果
由Time per request: 81.475 [ms] 变成Time per request: 28.363 [ms];提升了近3倍。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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