linux内核调优

850阅读 0评论2015-11-02 davie5201314
分类:LINUX


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  1. net.core.rmem_max=16777216

  2. net.core.wmem_max=16777216

  3. net.ipv4.tcp_rmem = 4096 87380 174760

  4. net.ipv4.tcp_wmem=4096 65536 174760

  5. net.ipv4.tcp_fin_timeout = 10

  6. net.ipv4.tcp_tw_recycle = 1
  7. net.ipv4.tcp_tw_reuse = 1

  8. net.ipv4.tcp_timestamps = 0

  9. net.ipv4.tcp_window_scaling = 0

  10. net.ipv4.tcp_sack = 0

  11. net.core.netdev_max_backlog = 30000

  12. net.ipv4.tcp_no_metrics_save=1

  13. net.core.somaxconn = 262144

  14. net.ipv4.tcp_max_orphans = 262144

  15. net.ipv4.tcp_max_syn_backlog = 819200

  16. net.ipv4.tcp_synack_retries = 2

  17. net.ipv4.tcp_syn_retries = 2

  18. ######DEFAULT 2h####
  19. net.ipv4.tcp_keepalive_time=1200
  20. net.ipv4.tcp_keepalive_intvl=30
  21. net.ipv4.tcp_keepalive_probes=3
  22. net.netfilter.nf_conntrack_max = 6553600
  23. net.netfilter.nf_conntrack_tcp_timeout_established = 1200
  24. net.ipv4.ip_local_port_range = 1024 65000
  25. net.ipv4.tcp_max_tw_buckets = 20000
  26. net.nf_conntrack_max = 6553600

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