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Re: Performance regression testing?

From: Laurent GUERBY <laurent at guerby dot net>
To: Mike Stump <mrs at apple dot com>
Cc: Mark Mitchell <mark at codesourcery dot com>, gcc mailing list <gcc at gcc dot gnu dot org>
Date: Tue, 29 Nov 2005 20:51:40 +0100
Subject: Re: Performance regression testing?
References: <438BA322.9000900@codesourcery.com> <76D4B0B5-460D-4B79-906B-6CC6B50F03D7@apple.com>

On Mon, 2005-11-28 at 17:55 -0800, Mike Stump wrote:
> My feeling is that we should have such a suite.  I'd favor a micro  
> style, where we are measuring clock cycles (on machines that can  
> expose them x86/v9), [...]

A while ago I looked at rdtsc on x86-linux, but I couldn't find a way,
other than statistical / multiple runs and take minimum, to known
how many context switch happened between two points in the measured
code. Is this number available in some ways?

Laurent

Follow-Ups:
- Re: Performance regression testing?
  - From: Mike Stump

References:
- Performance regression testing?
  - From: Mark Mitchell
- Re: Performance regression testing?
  - From: Mike Stump

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