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Re: 100x -O0 Compile Time Regression {3.2,3.3} -> {3.4,3.5}

From: John Vickers <John at xza5 dot com>
To: Zack Weinberg <zack at codesourcery dot com>
Cc: gcc at gcc dot gnu dot org
Date: Fri, 13 Feb 2004 01:05:29 +0000
Subject: Re: 100x -O0 Compile Time Regression {3.2,3.3} -> {3.4,3.5}
References: <402BF520.3000505@xza5.com> <87u11v6cc7.fsf@codesourcery.com>

Zack Weinberg wrote:

The most efficient way to track this down is probably to apply a
function-level profiler (oprofile is convenient as it doesn't require
recompiling anything; gprof also works; I can supply instructions for
building the compiler with gprof instrumentation if you like)

Hmm. oprofile. Cool.

But recompiling gcc with gprof might be easier.  If you have a
canned recipe, that would be handy.

John.

Follow-Ups:
- Re: 100x -O0 Compile Time Regression {3.2,3.3} -> {3.4,3.5}
  - From: law

References:
- 100x -O0 Compile Time Regression {3.2,3.3} -> {3.4,3.5}
  - From: John Vickers
- Re: 100x -O0 Compile Time Regression {3.2,3.3} -> {3.4,3.5}
  - From: Zack Weinberg

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