[[email protected] upload]# sysctl -p

net.core.wmem_default = 262144

fs.file-max = 76724600

vm.mmap_min_addr = 65536

net.core.somaxconn = 4096

net.core.wmem_max = 4194304

net.core.netdev_max_backlog = 10000

kernel.sem = 4096 2147483647 2147483646 512000

net.core.rmem_max = 4194304

vm.overcommit_ratio = 90

net.ipv4.tcp_tw_reuse = 1

net.core.rmem_default = 262144

net.ipv4.ip_local_port_range = 40000 65535

net.ipv4.tcp_rmem = 8192 87380 16777216

net.ipv4.tcp_max_syn_backlog = 4096

fs.nr_open = 20480000

net.ipv4.tcp_wmem = 8192 87380 16777216

vm.dirty_writeback_centisecs = 100

vm.dirty_ratio = 95

kernel.shmmni = 819200

vm.swappiness = 0

net.ipv4.tcp_mem = 8388608 12582912 16777216

vm.dirty_background_bytes = 409600000