配置指令如下：
[opcache]zend_extension=opcache.soopcache.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
实际性能对比：
下面是实际测试中没有开启opcache的数据：
[root@localhost ~]# ab -n 10000 -c 200 http://112.126.69.14/main.php?a=role&m=createrolethis 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 112.126.69.14 (be patient)completed 1000 requestscompleted 2000 requestscompleted 3000 requestscompleted 4000 requestscompleted 5000 requestscompleted 6000 requestscompleted 7000 requestscompleted 8000 requestscompleted 9000 requestscompleted 10000 requestsfinished 10000 requestsserver software: openresty/1.7.2.1server hostname: 112.126.69.14server port: 80document path: /main.php?a=role&m=createroledocument length: 2 bytesconcurrency level: 200time taken for tests: 26.061 secondscomplete requests: 10000failed requests: 20 (connect: 0, receive: 0, length: 20, exceptions: 0)write errors: 0non-2xx responses: 20total transferred: 1713580 byteshtml transferred: 23520 bytesrequests 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] receivedconnection times (ms) min mean[+/-sd] median maxconnect: 2 3 3.2 2 60processing: 17 461 905.0 219 16496waiting: 17 461 904.9 219 16496total: 21 464 905.0 222 16502percentage 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)
开启之后的数据：
[root@localhost ~]# ab -n 10000 -c 200 http://112.126.69.14/main.php?a=role&m=createrolethis 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 112.126.69.14 (be patient)completed 1000 requestscompleted 2000 requestscompleted 3000 requestscompleted 4000 requestscompleted 5000 requestscompleted 6000 requestscompleted 7000 requestscompleted 8000 requestscompleted 9000 requestscompleted 10000 requestsfinished 10000 requestsserver software: openresty/1.7.2.1server hostname: 112.126.69.14server port: 80document path: /main.php?a=role&m=createroledocument length: 2 bytesconcurrency level: 200time taken for tests: 14.237 secondscomplete requests: 10000failed requests: 0write errors: 0total transferred: 1711710 byteshtml transferred: 20020 bytesrequests 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] receivedconnection times (ms) min mean[+/-sd] median maxconnect: 2 66 272.6 2 3005processing: 4 176 666.4 6 9026waiting: 4 163 642.8 6 9026total: 6 242 745.7 9 10028percentage 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)
以上所述就是本文的全部内容，希望大家能够喜欢。