充分发挥nginx的性能,对系统参数做一些调整:

net.ipv4.ip_forward =0

net.ipv4.conf.default.rp_filter =1

net.ipv4.conf.accept_source_route =0

kernel.sysrq = 0

kernel.core_user_pid = 1


net.ipv4.tcp_syncookies  = 1

kernel.msgmnb = 65536

kernel.msgmax=65536


kernel.shmmax = 68719476736

kernel.shmall = 4294967296

net.ipv4.tcp_max_tw_buckers = 6000

net.ipv4.tcp_window_scaling = 1

net.ipv4.tcp_rmem = 4096 87380 4194304

net.ipv4.tcp.wmem = 4096 16384 4194304

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 = 252144

net.ipv4.tcp_max_orphans = 3276800

net.ipv4.tcp_max_syn_backlog = 262144

net.ipv4.tcp_timestamps =0

net.ipv4.tcp_syncack_retries = 1


net.ipv4.tcp_syn_retries =1

net.ipv4.tcp_tw_recycle=1

net.ipv4.tcp_tw_reuse =1

net.ipv4.tcp_mem= 9450000 915000000 927000000

net.ipv4.tcp_fin_timeout = 1

net.ipv4.tcp_keepalive_time= 30

net.ipv4.ip_local_port_range = 1024 65000