最近找了个不错的sysctl.conf的优化参数,在网站响应上已经算不错了的,time超时连接据说几乎为0了,系统:centos 5.x.
 
  sysctl.conf配置参数:
 
  net.ipv4.ip_forward = 0
 
  net.ipv4.conf.default.rp_filter = 1
 
  net.ipv4.conf.default.accept_source_route = 0
 
  kernel.sysrq = 0
 
  kernel.core_uses_pid = 1
 
  net.ipv4.tcp_syncookies = 1
 
  kernel.msgmnb = 65536
 
  kernel.msgmax = 65536
 
  kernel.shmmax = 68719476736
 
  kernel.shmall = 4294967296
 
  net.ipv4.tcp_max_tw_buckets = 6000
 
  net.ipv4.tcp_sack = 1
 
  net.ipv4.tcp_window_scaling = 1
 
  net.ipv4.tcp_wmem = 8192        4336600   873200
 
  net.ipv4.tcp_rmem = 32768       4336600   873200
 
  net.core.wmem_default = 8388608
 
  net.core.rmem_default = 8388608
 
  net.core.rmem_max = 16777216
 
  net.core.wmem_max = 16777216
 
  net.core.netdev_max_backlog = 262144
 
  net.core.somaxconn = 262144
 
  net.ipv4.tcp_max_orphans = 3276800
 
  net.ipv4.tcp_max_syn_backlog = 262144
 
  net.ipv4.tcp_timestamps = 1
 
  net.ipv4.tcp_synack_retries = 1
 
  net.ipv4.tcp_syn_retries = 1
 
  net.ipv4.tcp_tw_recycle = 1
 
  net.ipv4.tcp_tw_reuse = 1
 
  net.ipv4.tcp_mem = 786432 1048576 1572864
 
  net.ipv4.tcp_fin_timeout = 30  //phpfensi.com
 
  #net.ipv4.tcp_keepalive_time = 30
 
  net.ipv4.tcp_keepalive_time = 300
 
  net.ipv4.ip_local_port_range = 1024   65000。
 

dawei

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