linux内核参数优化

 1 net.ipv4.tcp_syncookies = 1
 2 net.ipv4.tcp_tw_reuse = 1
 3 net.ipv4.tcp_tw_recycle = 1
 4 net.ipv4.tcp_fin_timeout = 30
 5 net.ipv4.tcp_max_syn_backlog = 8192
 6 net.ipv4.tcp_max_tw_buckets = 6000
 7 net.ipv4.tcp_max_syn_backlog = 65536
 8 net.ipv4.route.gc_timeout = 100
 9 net.ipv4.tcp_keepalive_time = 1200
10 net.ipv4.tcp_timestamps = 0
11 net.ipv4.tcp_synack_retries = 2
12 net.ipv4.tcp_syn_retries = 2
13 net.ipv4.tcp_mem = 94500000 915000000 927000000
14 net.ipv4.tcp_max_orphans = 3276800
15 net.core.netdev_max_backlog = 32768
16 net.core.somaxconn = 32768
17 net.core.wmem_default = 8388608
18 net.core.rmem_default = 8388608
19 net.core.rmem_max = 16777216
20 net.core.wmem_max = 16777216