On Mon, Feb 01, 2010 at 07:35:11AM +0200, Gilboa Davara wrote: > > > > > > Can you post the output of $ mpstat -P 1 ALL during peak load? > > > > > > > We run "mpstat -P 5 ALL" continuously; is this sufficient resolution? I've > > attached the mpstat output from the 09:30-10:30 yesterday, which is one of the > > busiest hours of the day for multicast traffic. > > ~15'000 interrupts/core seems rather high to me - especially considering > the fact that this is a 1GbE link. > Reducing the InterruptThrottleRate to 1000/5000 while increasing the > queue count (ethtool -G ... rx ...) should decrease it. Oops, forgot to respond to this. The interrupt rate is currently around 4500 intr/s in total (i.e. the sum of intr/s over all cores) under load, which seems normal. Also, I've attached the dmidecode and lspci output. - Kelvin
Attachment:
testhost.dmidecode.gz
Description: GNU Zip compressed data
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testhost.lspci.gz
Description: GNU Zip compressed data
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