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vermaslal/sysctl.conf

Created September 20, 2017 18:14
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Linux configuration for handling large concurrent connections
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sysctl.conf
The new tweaks, placed in /etc/sysctl.conf (CentOS) and then reload with “sysctl -p” :
net.core.rmem_max = 33554432
net.core.wmem_max = 33554432
net.ipv4.tcp_rmem = 4096 16384 33554432
net.ipv4.tcp_wmem = 4096 16384 33554432
net.ipv4.tcp_mem = 786432 1048576 26777216
net.ipv4.tcp_max_tw_buckets = 360000
net.core.netdev_max_backlog = 2500
vm.min_free_kbytes = 65536
vm.swappiness = 0
net.ipv4.ip_local_port_range = 1024 65535
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