Re: RCU latency regression in 2.6.16-rc1

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On Tue, Jan 24, 2006 at 04:44:15AM -0500, Lee Revell wrote:
> On Tue, 2006-01-24 at 10:23 +0100, Ingo Molnar wrote:
> > * Paul E. McKenney <[email protected]> wrote:
> > 
> > > The other patch to try would be Dipankar Sarma's patch at:
> > > 
> > > 	http://marc.theaimsgroup.com/?l=linux-kernel&m=113657112726596&w=2
> > > 
> > > This patch was primarily designed to reduce memory overhead, but given 
> > > that it tends to reduce batch size, it should also reduce latency.
> > 
> > if this solves Lee's problem, i think we should apply this as a fix, and 
> > get it into v2.6.16. The patch looks straightforward and correct to me.
> > 
> 
> Does not compile:
> 
>  CC      kernel/rcupdate.o
> kernel/rcupdate.c:76: warning: 'struct rcu_state' declared inside parameter list

My original patch was against a much older kernel.
I will send out a more uptodate patch as soon as I am done with some
testing.

Thanks
Dipankar
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