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      Linux平台PHP5.4设置FPM线程数量的方法
      发布时间:2016-12-21 08:07:00 关键词: Linux,PHP5.4,设置,FPM,线程数量
      内容简介:这篇文章主要介绍了Linux平台PHP5.4设置FPM线程数量的方法,较为详细的分析了Linux平台php5.4设置FPM的相关参数、功能及使用技巧,需要的朋友可以参考下

    本文实例讲述了Linux平台PHP5.4设置FPM线程数量的方法。分享给大家供大家参考,具体如下:

    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,则进行清理。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

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