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Tuning Intel e1000 NICs
From Cluster Documentation Project
Revision as of 03:26, 22 February 2006 by Steve vmwx (talk | contribs)
Switch off Interupt Throttle Rate (ITR) when loading the module. Try adding the following line to your modules.conf (or modprobe.conf if 2.6):
options e1000 InterruptThrottleRate=0,0
Use 0,0,0,0 of 2x NICs
(Thanks to Peter Kjellstrom at the Nation Computing Centre, Sweden - from the Beowulf email list)
All the magic options and generally good support info from Intel here: http://support.intel.com/support/network/sb/CS-009209.htm
If you want to go exotic, check out the Gamma project for a non-TCP/IP stack (recently updated with 2.6.x kernel and amd64 x86-64 support): http://www.disi.unige.it/project/gamma/
