Re: Does anyone use CONFIG_TINY_PREEMPT_RCU?

From: Josh Triplett
Date: Tue Nov 13 2012 - 19:36:40 EST


On Tue, Nov 13, 2012 at 04:06:48PM -0800, Paul E. McKenney wrote:
> On Wed, Nov 14, 2012 at 12:32:36AM +0100, Tim Sander wrote:
> > Hi Paul
> >
> > Sorry english somehow i tried to shoehorn more than one sentence into one
> > sentence in the last mail.
> > > OK, how much memory does your device have?
> > It's 128Mb of memory.
>
> That is a bit on the smaller side. But still quite large compared
> to the 15K difference between CONFIG_TREE_PREEMPT_RCU and
> CONFIG_TINY_PREEMPT_RCU.

I'd also expect CONFIG_TINY_PREEMPT_RCU to have marginally more
performance on a UP system, but probably not enough to matter.

- Josh Triplett
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