From: Jakub Jelinek <jakub@redhat.com>
To: Con Kolivas <conman@kolivas.net>
Cc: root@chaos.analogic.com, linux-kernel@vger.kernel.org
Subject: Re: [BENCHMARK] Corrected gcc3.2 v gcc2.95.3 contest results
Date: Mon, 23 Sep 2002 10:34:17 -0400 [thread overview]
Message-ID: <20020923103417.V21220@devserv.devel.redhat.com> (raw)
In-Reply-To: <1032791089.3d8f2431231ac@kolivas.net>; from conman@kolivas.net on Tue, Sep 24, 2002 at 12:24:49AM +1000
On Tue, Sep 24, 2002 at 12:24:49AM +1000, Con Kolivas wrote:
> That is the system I was considering. I just need to run enough benchmarks to
> make this worthwhile though. That means about 5 for each it seems - which may
> take me a while. A basic mean will suffice for a measure of central tendency. I
> also need to quote some measure of variability. Standard deviation?
BTW: Have you tried gcc 3.2 with say -finline-limit=2000 too?
By default gcc 3.2 has for usual C code smaller inlining cutoff, so the IO
difference might as well be because some important, but big function was
inlined by 2.95.x and not by 3.2.x. On the other side there is
__attribute__((always_inline)) which you can use to tell gcc you don't
want any cutoff for a particular function.
Jakub
next prev parent reply other threads:[~2002-09-23 14:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-23 6:55 [BENCHMARK] Corrected gcc3.2 v gcc2.95.3 contest results Con Kolivas
2002-09-23 7:49 ` Ingo Molnar
2002-09-23 10:30 ` Con Kolivas
2002-09-23 11:03 ` jw schultz
2002-09-23 12:47 ` Erik Andersen
2002-09-23 13:00 ` Con Kolivas
2002-09-23 13:15 ` Richard B. Johnson
2002-09-23 13:35 ` Ingo Molnar
2002-09-23 14:09 ` Richard B. Johnson
2002-09-23 18:24 ` Andrew Morton
2002-09-23 14:02 ` Ryan Anderson
2002-09-23 14:15 ` Richard B. Johnson
2002-09-23 14:24 ` Con Kolivas
2002-09-23 14:34 ` Jakub Jelinek [this message]
2002-09-23 16:03 ` Måns Rullgård
2002-09-23 14:43 ` Richard B. Johnson
2002-09-24 21:30 ` Bill Davidsen
2002-09-23 16:34 ` Oliver Xymoron
2002-09-23 21:47 ` Con Kolivas
2002-09-24 1:12 ` jw schultz
2002-09-24 9:18 ` Jan Hudec
2002-09-23 14:26 ` Ingo Molnar
2002-09-23 14:36 ` Con Kolivas
2002-09-24 21:27 ` Bill Davidsen
[not found] <Pine.LNX.4.33.0209232236070.27095-100000@coffee.psychology.mcmaster.ca>
2002-09-24 2:45 ` Con Kolivas
2002-09-24 3:01 ` Andrew Morton
2002-09-24 9:34 ` Jan Hudec
2002-09-24 13:45 ` Denis Vlasenko
2002-09-24 9:26 ` Con Kolivas
2002-09-24 14:19 ` Denis Vlasenko
2002-09-24 15:47 ` Mark Hahn
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