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Re: GCC performance regression - up to 20% ?

From: Falk Hueffner <falk dot hueffner at student dot uni-tuebingen dot de>
To: gcc list <gcc at gcc dot gnu dot org>
Date: 22 Apr 2002 16:11:38 +0200
Subject: Re: GCC performance regression - up to 20% ?
References: <20020421005718.GA16378@zoy.org><20020421113238.GC16602@atrey.karlin.mff.cuni.cz><20020422061937.GA27171@zoy.org> <20020422155801.A21747@alinoe.com>

Carlo Wood <carlo@alinoe.com> writes:

> I wish there would be a more precise profiler that uses the hardware
> counters.  Does anyone know of one?  Hmm, I remember a Subject: line
> on the PAPI mailinglist that mentioned gprof, but I deleted it.  I
> think it asked the same question: whether or not there existed a
> 'gprof' that used PAPI.

http://oprofile.sourceforge.net/

Only runs on i386 Linux and needs a kernel module, though.

        Falk

References:
- GCC performance regression - up to 20% ?
  - From: Michel LESPINASSE
- Re: GCC performance regression - up to 20% ?
  - From: Jan Hubicka
- Re: GCC performance regression - up to 20% ?
  - From: Michel LESPINASSE
- Re: GCC performance regression - up to 20% ?
  - From: Carlo Wood

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