Re: More latency regressions with 2.6.11-rc4-RT-V0.7.39-02

[Lee Revell]

On Fri, 2005-02-25 at 05:58 +0000, Hugh Dickins wrote:
> On Thu, 24 Feb 2005, Lee Revell wrote:
> > On Thu, 2005-02-24 at 08:26 +0000, Hugh Dickins wrote:
> > > 
> > > If we'd got to it earlier, yes.  But 2.6.11 looks to be just a day or
> > > two away, and we've no idea why zap_pte_range or clear_page_range
> > > would have reverted.  Nor have we heard from Ingo yet.
> > 
> > It's also not clear that the patch completely fixes the copy_pte_range
> > latency.  This trace is from the Athlon XP.
> 
> Then we need Ingo to investigate and explain all these reversions.
> I'm not _blaming_ Ingo for them, but I'm not familiar with his patches
> nor with deciphering latency traces - he's the magician around here.
> 

Yup.  Oh well.

I'll try to compile a comprehensive list of these so we can fix them for
2.6.12.

Lee

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