| 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 |
