Re: Poor UDP performance using 2.6.21-rc5-rt5
From: Ingo Molnar
Date: Mon Apr 02 2007 - 03:21:37 EST
* Dave Sperry <dave_sperry@xxxxxxxx> wrote:
> I have a dual core Opteron machine that exhibits poor UDP performance
> (RT consumes more than 2X cpu) with the 2.6.21-rc5-rt5 as compared to
> 2.6.21-rc5. Top shows the IRQ handler consuming a lot of CPU.
update: even with acpi_pm clocksource on vanilla i can reproduce similar
overhead using netperf.
Ingo
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