Enable opcache in PHP to improve code performance_PHP tutorial

PHP turns on opcache to improve code performance

　 PHP turns on opcache to improve code performance

APC is the best performing code cache in PHP5.4 and below. However, after PHP is upgraded to 5.5 and above, APC is no longer valid. Requires Zend's OpCache extension.

The configuration instructions are as follows:

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[opcache] zend_extension=opcache.so opcache.enable_cli=1 ;共享内存大小, 这个根据你们的需求可调 opcache.memory_consumption=256 ;interned string的内存大小, 也可调 opcache.interned_strings_buffer=8 ;最大缓存的文件数目 opcache.max_accelerated_files=4000 ;60s检查一次文件更新 opcache.revalidate_freq=60 ;打开快速关闭, 打开这个在PHP Request Shutdown的时候 会收内存的速度会提高 opcache.fast_shutdown=1 ;不保存文件/函数的注释 opcache.save_comments=0

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[opcache] zend_extension=opcache.so opcache.enable_cli=1 ;Shared memory size, this can be adjusted according to your needs opcache.memory_consumption=256 ;The memory size of interned string can also be adjusted opcache.interned_strings_buffer=8 ;Maximum number of cached files opcache.max_accelerated_files=4000 ; Check for file updates every 60 seconds opcache.revalidate_freq=60 ; Turn on quick shutdown. Turning this on will increase the speed of memory storage during PHP Request Shutdown opcache.fast_shutdown=1 ;Do not save file/function comments opcache.save_comments=0

Actual performance comparison:

The following is the data without opening opcache in the actual test:

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[root@localhost ~]# ab -n 10000 -c 200 "http://112.126.69.14/main.php?a=Role&m=createRole" This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/   Benchmarking 112.126.69.14 (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests Completed 10000 requests Finished 10000 requests   Server Software: openresty/1.7.2.1 Server Hostname: 112.126.69.14 Server Port: 80   Document Path: /main.php?a=Role&m=createRole Document Length: 2 bytes   Concurrency Level: 200 Time taken for tests: 26.061 seconds Complete requests: 10000 Failed requests: 20 (Connect: 0, Receive: 0, Length: 20, Exceptions: 0) Write errors: 0 Non-2xx responses: 20 Total transferred: 1713580 bytes HTML transferred: 23520 bytes Requests per second: 383.72 [#/sec] (mean) Time per request: 521.216 [ms] (mean) Time per request: 2.606 [ms] (mean, across all concurrent requests) Transfer rate: 64.21 [Kbytes/sec] received   Connection Times (ms) min mean[ /-sd] median max Connect: 2 3 3.2 2 60 Processing: 17 461 905.0 219 16496 Waiting: 17 461 904.9 219 16496 Total: 21 464 905.0 222 16502   Percentage of the requests served within a certain time (ms) 50% 222 66% 271 75% 369 80% 412 90% 805 95% 1248 98% 2597 99% 3489 100% 16502 (longest request)

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[root@localhost ~]# ab -n 10000 -c 200 "http://112.126.69.14/main.php?a=Role&m=createRole" This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking 112.126.69.14 (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests Completed 10000 requests Finished 10000 requests Server Software: openresty/1.7.2.1 Server Hostname: 112.126.69.14 Server Port: 80 Document Path: /main.php?a=Role&m=createRole Document Length: 2 bytes Concurrency Level: 200 Time taken for tests: 26.061 seconds Complete requests: 10000 Failed requests: 20 (Connect: 0, Receive: 0, Length: 20, Exceptions: 0) Write errors: 0 Non-2xx responses: 20 Total transferred: 1713580 bytes HTML transferred: 23520 bytes Requests per second: 383.72 [#/sec] (mean) Time per request: 521.216 [ms] (mean) Time per request: 2.606 [ms] (mean, across all concurrent requests) Transfer rate: 64.21 [Kbytes/sec] received Connection Times (ms) min mean[ /-sd] median max Connect: 2 3 3.2 2 60 Processing: 17 461 905.0 219 16496 Waiting: 17 461 904.9 219 16496 Total: 21 464 905.0 222 16502 Percentage of the requests served within a certain time (ms) 50% 222 66% 271 75% 369 80% 412 90% 805 95% 1248 98% 2597 99% 3489 100% 16502 (longest request)

Data after opening:

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[root@localhost ~]# ab -n 10000 -c 200 "http://112.126.69.14/main.php?a=Role&m=createRole" This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/   Benchmarking 112.126.69.14 (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests Completed 10000 requests Finished 10000 requests     Server Software: openresty/1.7.2.1 Server Hostname: 112.126.69.14 Server Port: 80   Document Path: /main.php?a=Role&m=createRole Document Length: 2 bytes   Concurrency Level: 200 Time taken for tests: 14.237 seconds Complete requests: 10000 Failed requests: 0 Write errors: 0 Total transferred: 1711710 bytes HTML transferred: 20020 bytes Requests per second: 702.40 [#/sec] (mean) Time per request: 284.739 [ms] (mean) Time per request: 1.424 [ms] (mean, across all concurrent requests) Transfer rate: 117.41 [Kbytes/sec] received   Connection Times (ms) min mean[ /-sd] median max Connect: 2 66 272.6 2 3005 Processing: 4 176 666.4 6 9026 Waiting: 4 163 642.8 6 9026 Total: 6 242 745.7 9 10028   Percentage of the requests served within a certain time (ms) 50% 9 66% 14 75% 99 80% 122 90% 1006 95% 1476 98% 2853 99% 3543 100% 10028 (longest request)

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[root@localhost ~]# ab -n 10000 -c 200 "http://112.126.69.14/main.php?a=Role&m=createRole" This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking 112.126.69.14 (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests Completed 10000 requests Finished 10000 requests Server Software: openresty/1.7.2.1 Server Hostname: 112.126.69.14 Server Port: 80 Document Path: /main.php?a=Role&m=createRole Document Length: 2 bytes Concurrency Level: 200 Time taken for tests: 14.237 seconds Complete requests: 10000 Failed requests: 0 Write errors: 0 Total transferred: 1711710 bytes HTML transferred: 20020 bytes Requests per second: 702.40 [#/sec] (mean) Time per request: 284.739 [ms] (mean) Time per request: 1.424 [ms] (mean, across all concurrent requests) Transfer rate: 117.41 [Kbytes/sec] received Connection Times (ms) min mean[ /-sd] median max Connect: 2 66 272.6 2 3005 Processing: 4 176 666.4 6 9026 Waiting: 4 163 642.8 6 9026 Total: 6 242 745.7 9 10028 Percentage of the requests served within a certain time (ms) 50% 9 66% 14 75% 99 80% 122 90% 1006 95% 1476 98% 2853 99% 3543 100% 10028 (longest request)

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