| ifconfig eth1 mtu 9000 txqueuelen 1000 up | |
| ### IPV4 specific settings | |
| # turns TCP timestamp support off, default 1, reduces CPU use | |
| echo "0" > /proc/sys/net/ipv4/tcp_timestamps | |
| # turn SACK support off, default on | |
| echo "0" > /proc/sys/net/ipv4/tcp_sack | |
| # sets min/default/max TCP read buffer, default 4096 87380 174760 | |
| echo "10000000 10000000 10000000" > /proc/sys/net/ipv4/tcp_rmem | |
| # sets min/pressure/max TCP write buffer, default 4096 16384 131072 | |
| echo "10000000 10000000 10000000" > /proc/sys/net/ipv4/tcp_wmem | |
| # sets min/pressure/max TCP buffer space, default 31744 32256 32768 | |
| echo "10000000 10000000 10000000" > /proc/sys/net/ipv4/tcp_mem | |
| ### CORE settings (mostly for socket and UDP effect) | |
| # maximum receive socket buffer size, default 131071 | |
| echo "524287" > /proc/sys/net/core/rmem_max | |
| # maximum send socket buffer size, default 131071 | |
| echo "524287" > /proc/sys/net/core/wmem_max | |
| # default receive socket buffer size, default 65535 | |
| echo "524287" > /proc/sys/net/core/rmem_default | |
| # default send socket buffer size, default 65535 | |
| echo "524287" > /proc/sys/net/core/wmem_default | |
| # maximum amount of option memory buffers, default 10240 | |
| echo "524287" > /proc/sys/net/core/optmem_max | |
| # number of unprocessed input packets before kernel starts dropping them, | |
| # default 300 | |
| echo "300000" > /proc/sys/net/core/netdev_max_backlog |