wiki:sysctl

Version 1 (modified by sky, 9 years ago) (diff)

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System configuration & Kernel tweaks

参数优化:/etc/sysctl.conf

net.ipv4.ip_default_ttl = 255
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1

net.ipv4.tcp_max_tw_buckets = 262144
net.ipv4.ip_local_port_range = 1024  65535

# Do not use swap ASAP
vm.swappiness = 0

# TCP socket keepalive check every minute, if fail check every 10 seconds and 3 times
net.ipv4.tcp_keepalive_time = 60
net.ipv4.tcp_keepalive_intvl = 10
net.ipv4.tcp_keepalive_probes = 3

net.ipv4.tcp_fin_timeout = 30

参数优化:/etc/security/limits.conf

*   -   nofile      65535
*   -   nproc       65535

更多的参数优化,可参考如下: http://tengine.taobao.org/document/benchmark.html