How to Tune Snow Leopard’s Network Performance

Author: erics, Posted May 2nd, 2010 at 12:48:25am

I wanted to be sure that my mac was using the WAN for all it was worth. I set the following in /etc/sysctl.conf:

[code]kern.ipc.maxsockbuf=768000
net.inet.tcp.sendspace=131072
net.inet.tcp.recvspace=512000
net.inet.tcp.win_scale_factor=8[/code]

These commands can be set in real time without a reboot. Simply call sysctl as root from the command prompt in Terminal..

For example:

[code]# sysctl -w net.inet.tcp.win_scale_factor=8[/code]

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