PHP5.4设置FPM线程数量

单曲.码农的生活| 阅读:1088 发表时间:2015-11-06 20:38:47 phplinuxonline
摘要:PHP5.4安装完毕后,FPM的默认配置文件位于/usr/local/php/etc/php-fpm.conf.default >cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf >vim /usr/local/php/etc/php-fpm.conf 输入”/www”,搜索www所在的POOL
PHP5.4安装完毕后,FPM的默认配置文件位于/usr/local/php/etc/php-fpm.conf.default
>cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf
>vim /usr/local/php/etc/php-fpm.conf
输入”/www”,搜索www所在的POOL
pm = dynamic
 
; The number of child processes to be created when pm is set to 'static' and the
; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
; This value sets the limit on the number of simultaneous requests that will be
; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
; CGI. The below defaults are based on a server without much resources. Don't
; forget to tweak pm.* to fit your needs.
; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'
; Note: This value is mandatory.
pm.max_children = 5
 
; The number of child processes created on startup.
; Note: Used only when pm is set to 'dynamic'
; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
pm.start_servers = 2
 
; The desired minimum number of idle server processes.
; Note: Used only when pm is set to 'dynamic'
; Note: Mandatory when pm is set to 'dynamic'
pm.min_spare_servers = 1
 
; The desired maximum number of idle server processes.
; Note: Used only when pm is set to 'dynamic'
; Note: Mandatory when pm is set to 'dynamic'
pm.max_spare_servers = 3
 
; The number of seconds after which an idle process will be killed.
; Note: Used only when pm is set to 'ondemand'
; Default Value: 10s
;pm.process_idle_timeout = 10s;
 
; The number of requests each child process should execute before respawning.
; This can be useful to work around memory leaks in 3rd party libraries. For
; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS.
; Default Value: 0
;pm.max_requests = 500

解释一下:
pm = dynamic 如何控制子进程,选项有static和dynamic,默认采用dynamic;如果选择static,则由pm.max_children指定固定的子进程数。
如果选择dynamic,则由以下参数决定:
pm.max_children ,子进程最大数
pm.start_servers ,启动时的进程数
pm.min_spare_servers ,保证空闲进程数最小值,如果空闲进程小于此值,则创建新的子进程
pm.max_spare_servers ,保证空闲进程数最大值,如果空闲进程大于此值,此进行清理
对于专用服务器,pm可以设置为static。
pm.max_requests 设置每个子进程重生之前服务的请求数. 对于可能存在内存泄漏的第三方模块来说是非常有用的. 如果设置为 ’0′ 则一直接受请求. 设置为500就可以了(默认0)。

将值修改为如下:
pm.max_children = 32
pm.start_servers = 16
pm.min_spare_servers = 8
pm.max_spare_servers = 32
pm.max_requests = 500

:wq 保存退出VIM

>/usr/local/php/sbin/php-fpm -t
NOTICE: configuration file /usr/local/php/etc/php-fpm.conf test is successful
测试配置文件是否正常,没问题,杀掉当前的FPM进程
>/usr/local/php/sbin/php-fpm启动

摘自:http://www.zishon.com/archives/390.html
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