Re: Poor UDP performance using 2.6.21-rc5-rt5

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* Nivedita Singhvi <niv@xxxxxxxxxx> wrote:

> Dave Sperry wrote:
> >Hi
> 
> (adding netdev to cc list)

in general (except of course those netdev folks that are interested in 
-rt+networking performance matters) i'd suggest we analyze this in an 
-rt specific way - netdev shouldnt have to bother about this.

> And I'm assuming nothing very different in the stats or errors through 
> both runs?

one thing to check would be whether both kernels use the same 
clocksource, via:

 cat /sys/devices/system/clocksource/clocksource0/current_clocksource

but at first sight there's no clocksource related overhead in the 
oprofile.

	Ingo
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