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优化得很好的sysctl.conf配置

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:
  1. net.ipv4.ip_forward = 0
  2. net.ipv4.conf.default.rp_filter = 1
  3. net.ipv4.conf.default.accept_source_route = 0
  4. kernel.sysrq = 0
  5. kernel.core_uses_pid = 1
  6. net.ipv4.tcp_syncookies = 1
  7. kernel.msgmnb = 65536
  8. kernel.msgmax = 65536
  9. kernel.shmmax = 68719476736
  10. kernel.shmall = 4294967296
  11. net.ipv4.tcp_max_tw_buckets = 6000
  12. net.ipv4.tcp_sack = 1
  13. net.ipv4.tcp_window_scaling = 1
  14. net.ipv4.tcp_wmem = 8192        4336600   873200
  15. net.ipv4.tcp_rmem = 32768       4336600   873200
  16. net.core.wmem_default = 8388608
  17. net.core.rmem_default = 8388608
  18. net.core.rmem_max = 16777216
  19. net.core.wmem_max = 16777216
  20. net.core.netdev_max_backlog = 262144
  21. net.core.somaxconn = 262144
  22. net.ipv4.tcp_max_orphans = 3276800
  23. net.ipv4.tcp_max_syn_backlog = 262144
  24. net.ipv4.tcp_timestamps = 1
  25. net.ipv4.tcp_synack_retries = 1
  26. net.ipv4.tcp_syn_retries = 1
  27. net.ipv4.tcp_tw_recycle = 1
  28. net.ipv4.tcp_tw_reuse = 1
  29. net.ipv4.tcp_mem = 786432 1048576 1572864
  30. net.ipv4.tcp_fin_timeout = 30
  31. #net.ipv4.tcp_keepalive_time = 30
  32. net.ipv4.tcp_keepalive_time = 300
  33. net.ipv4.ip_local_port_range = 1024   65000
复制代码
使用sysctl -p使其生效,有需要的同学可以去试试.

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