mysql centos7 内核参数_CentOS7 内核参数优化

# allow testing with buffers up to 128MB

net.core.rmem_max = 134217728

net.core.wmem_max = 134217728

# # increase Linux autotuning TCP buffer limit to 64MB

net.ipv4.tcp_rmem = 4096 87380 67108864

net.ipv4.tcp_wmem = 4096 65536 67108864

net.ipv4.tcp_syn_retries = 1

net.ipv4.tcp_synack_retries = 1

net.ipv4.tcp_keepalive_time = 600

net.ipv4.tcp_keepalive_probes = 3

net.ipv4.tcp_keepalive_intvl =15

net.ipv4.tcp_retries2 = 5

net.ipv4.tcp_fin_timeout = 2

net.ipv4.tcp_max_tw_buckets = 36000

net.ipv4.tcp_tw_recycle = 1

net.ipv4.tcp_tw_reuse = 1

net.ipv4.tcp_max_orphans = 32768

net.ipv4.tcp_syncookies = 1

net.ipv4.tcp_max_syn_backlog = 16384

net.ipv4.ip_local_port_range = 1024 65000

net.core.somaxconn = 16384

net.core.netdev_max_backlog = 16384