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From: Chris Wilson <chris@chris-wilson.co.uk>
To: Knut Petersen <Knut_Petersen@t-online.de>,
	intel-gfx <intel-gfx@lists.freedesktop.org>
Subject: Re: X11 performance regressions
Date: Wed, 11 May 2011 18:52:06 +0100	[thread overview]
Message-ID: <f80fcd$tur5@fmsmga001.fm.intel.com> (raw)
In-Reply-To: <4DCAA134.4020705@t-online.de>

On Wed, 11 May 2011 16:46:12 +0200, Knut Petersen <Knut_Petersen@t-online.de> wrote:
> Yes, I made some mistakes during my first measurements.
> 
> Below find better results. They are made on the same machine,
> with the same kernel, at the same speed, with the same x11perf
> program, absolutely nothing changed.
> 
> I used x11perfcomp -ro and sorted the output, worst results for
> the currrent git code first.
> 
> I think the numbers below are quite interesting ...

>      1        2    Operation
> --------  ------   ---------
>   965000.0   0.016   10x10 wide rectangle outline

Something is still not quite right here. This should be mostly CPU bound,
and even my Atom gets 734k.

Can you check that (a) it is CPU bound and (b) the worst offenders
according to the system profiler of your choice (e.g. perf)?

Thanks for doing this investigation.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre

  reply	other threads:[~2011-05-11 17:52 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-08 18:22 X11 performance regressions Knut Petersen
2011-05-09 16:53 ` Adam Jackson
2011-05-09 21:43 ` Chris Wilson
2011-05-11 14:46   ` Knut Petersen
2011-05-11 17:52     ` Chris Wilson [this message]
2011-05-12  7:19       ` Knut Petersen
2011-05-12  7:38         ` Chris Wilson
2011-05-12  8:24           ` Knut Petersen
2011-05-12  8:55             ` Chris Wilson
2011-05-12  9:34               ` Knut Petersen
2011-05-13  9:24               ` Knut Petersen
2011-05-11 19:49     ` Adam Jackson
2011-05-11 21:22       ` Knut Petersen
2011-05-12 13:42         ` Adam Jackson

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