Re: RCU latency regression in 2.6.16-rc1

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On Tue, 2006-01-24 at 08:56 +0100, Ingo Molnar wrote:
> * Lee Revell <[email protected]> wrote:
> 
> > I ported the latency tracer to 2.6.16 and got this 13ms latency within 
> > a few hours.  This is a regression from 2.6.15.
> > 
> > It appears that RCU can invoke ipv4_dst_destroy thousands of times in 
> > a single batch.
> 
> could you try the PREEMPT_RCU patch below?
> 


Sure.  If it works do you see this making it in 2.6.16?  Otherwise we
still would have a regression...

Lee


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