Messages in this thread | | | Date | Tue, 7 Dec 2004 05:02:35 +0100 | From | Karsten Desler <> | Subject | Re: _High_ CPU usage while routing (mostly) small UDP packets |
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* jamal wrote: > Beats me. Make sure it boots NAPI. Also if you can turn off ITR; intel > loves to turn on that silly feature.
ITR was in fact activated. I think i've disabled it now (e1000.InterruptThrottleRate=0 in the kernel cmdline). And as I'm reading the e1000 code, there is no way to enable/disable NAPI without a recompile. So the fact that ethtool spat out -NAPI in the version string means that NAPI is actually used.
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