php-fpm配置

<?xml version="1.0" ?> 
<configuration> 
 
  All relative paths in this config are relative to php's install prefix  
 
  <section name="global_options"> 
 
    Pid file  
    <value name="pid_file">/usr/local/logs/php-fpm.pid</value> 
 
    Error log file  
    <value name="error_log">/usr/local/logs/php-fpm.log</value> 
 
    Log level  
    <value name="log_level">notice</value> 
 
    When this amount of php processes exited with SIGSEGV or SIGBUS ...  
    <value name="emergency_restart_threshold">10</value> 
 
    ... in a less than this interval of time, a graceful restart will be initiated.  
    Useful to work around accidental curruptions in accelerator's shared memory.  
    <value name="emergency_restart_interval">1m</value> 
 
    Time limit on waiting child's reaction on signals from master  
    <value name="process_control_timeout">5s</value> 
 
    Set to 'no' to debug fpm  
    <value name="daemonize">yes</value> 
 
  </section> 
 
  <workers> 
 
    <section name="pool"> 
 
      Name of pool. Used in logs and stats.  
      <value name="name">default</value> 
 
      Address to accept fastcgi requests on.  
      Valid syntax is 'ip.ad.re.ss:port' or just 'port' or '/path/to/unix/socket'  
      <value name="listen_address">127.0.0.1:9000</value> 
 
      <value name="listen_options"> 
 
        Set listen(2) backlog  
        <value name="backlog">-1</value> 
 
        Set permissions for unix socket, if one used.  
        In Linux read/write permissions must be set in order to allow connections from web server.  
        Many BSD-derrived systems allow connections regardless of permissions.  
        <value name="owner"></value> 
        <value name="group"></value> 
        <value name="mode">0666</value> 
      </value> 
 
      Additional php.ini defines, specific to this pool of workers.  
      <value name="php_defines"> 
        <value name="sendmail_path">/usr/sbin/sendmail -t -i</value> 
        <value name="display_errors">1</value> 
      </value> 
 
      Unix user of processes  
        <value name="user">nobody</value> 
 
      Unix group of processes  
        <value name="group">nobody</value> 
 
      Process manager settings  
      <value name="pm"> 
 
        Sets style of controling worker process count.  
        Valid values are 'static' and 'apache-like'  
        <value name="style">static</value> 
 
        Sets the limit on the number of simultaneous requests that will be served.  
        Equivalent to Apache MaxClients directive.  
        Equivalent to PHP_FCGI_CHILDREN environment in original php.fcgi  
        Used with any pm_style.  
        <value name="max_children">128</value> 
 
        Settings group for 'apache-like' pm style  
        <value name="apache_like"> 
 
          Sets the number of server processes created on startup.  
          Used only when 'apache-like' pm_style is selected  
          <value name="StartServers">20</value> 
 
          Sets the desired minimum number of idle server processes.  
          Used only when 'apache-like' pm_style is selected  
          <value name="MinSpareServers">5</value> 
 
          Sets the desired maximum number of idle server processes.  
          Used only when 'apache-like' pm_style is selected  
          <value name="MaxSpareServers">35</value> 
 
        </value> 
 
      </value> 
 
      The timeout (in seconds) for serving a single request after which the worker process will be terminated  
      Should be used when 'max_execution_time' ini option does not stop script execution for some reason  
      '0s' means 'off'  
      <value name="request_terminate_timeout">0s</value> 
 
      The timeout (in seconds) for serving of single request after which a php backtrace will be dumped to slow.log file  
      '0s' means 'off'  
      <value name="request_slowlog_timeout">0s</value> 
 
      The log file for slow requests  
      <value name="slowlog">logs/slow.log</value> 
 
      Set open file desc rlimit  
      <value name="rlimit_files">51200</value> 
 
      Set max core size rlimit  
      <value name="rlimit_core">0</value> 
 
      Chroot to this directory at the start, absolute path  
      <value name="chroot"></value> 
 
      Chdir to this directory at the start, absolute path  
      <value name="chdir"></value> 
 
      Redirect workers' stdout and stderr into main error log.  
      If not set, they will be redirected to /dev/null, according to FastCGI specs  
      <value name="catch_workers_output">yes</value> 
 
      How much requests each process should execute before respawn.  
      Useful to work around memory leaks in 3rd party libraries.  
      For endless request processing please specify 0  
      Equivalent to PHP_FCGI_MAX_REQUESTS  
      <value name="max_requests">500</value> 
 
      Comma separated list of ipv4 addresses of FastCGI clients that allowed to connect.  
      Equivalent to FCGI_WEB_SERVER_ADDRS environment in original php.fcgi (5.2.2+)  
      Makes sense only with AF_INET listening socket.  
      <value name="allowed_clients">127.0.0.1</value> 
 
      Pass environment variables like LD_LIBRARY_PATH  
      All $VARIABLEs are taken from current environment  
      <value name="environment"> 
        <value name="HOSTNAME">$HOSTNAME</value> 
        <value name="PATH">/usr/local/bin:/usr/bin:/bin</value> 
        <value name="TMP">/tmp</value> 
        <value name="TMPDIR">/tmp</value> 
        <value name="TEMP">/tmp</value> 
        <value name="OSTYPE">$OSTYPE</value> 
        <value name="MACHTYPE">$MACHTYPE</value> 
        <value name="MALLOC_CHECK_">2</value> 
      </value> 
 
    </section> 
 
  </workers> 
 
</configuration>
如果内存较小，可以考虑使用以下修改：
将启动的php-cgi进程数由原来的128个改为5个：
<value name=”max_children”>5</value>
将TCP模式改为Unix Socket模式：

<value name=”listen_address”>/tmp/php-cgi.sock</value>