From: Mike Stump <mrs@apple.com>
To: Steven Bosscher <stevenb@suse.de>
Cc: Paolo Bonzini <bonzini@gnu.org>,
Karel Gardas <kgardas@objectsecurity.com>,
GCC Mailing List <gcc@gcc.gnu.org>
Subject: Re: Compilation performance comparison of gcc3.4.1 and gcc3.5.0 2004-08-30 on MICO sources
Date: Tue, 31 Aug 2004 19:30:00 -0000 [thread overview]
Message-ID: <8100F39E-FB82-11D8-8516-000393941EE6@apple.com> (raw)
In-Reply-To: <200408311249.32872.stevenb@suse.de>
On Aug 31, 2004, at 3:49 AM, Steven Bosscher wrote:
> This may also just be noise. Some passes run so fast that the
> time vars are not accurate enough to record it.
We at apple use ~10ns clocks to record times... works better... Only
problem, getting user/sys time out of the kernel into user space, so
that merely grabbing time isn't costly. :-( Not really a problem, as
wall is the only thing you can trust, and what matters the most anyway.
next prev parent reply other threads:[~2004-08-31 19:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-31 9:58 Karel Gardas
2004-08-31 10:12 ` Steven Bosscher
2004-08-31 10:28 ` Karel Gardas
2004-08-31 10:44 ` Paolo Bonzini
2004-08-31 10:46 ` Karel Gardas
2004-08-31 10:49 ` Steven Bosscher
2004-08-31 11:00 ` Paolo Bonzini
2004-08-31 11:24 ` Steven Bosscher
2004-08-31 19:30 ` Mike Stump [this message]
2004-08-31 12:48 ` Karel Gardas
2004-09-01 7:18 ` Paolo Bonzini
2004-08-31 10:55 ` Steven Bosscher
2004-08-31 13:57 ` Karel Gardas
2004-09-01 11:18 ` Giovanni Bajo
2004-09-02 9:41 ` Karel Gardas
2004-09-02 20:32 ` Compilation performance comparison of gcc3.4.1 and gcc3.5.02004-08-30 " Giovanni Bajo
2004-09-04 7:35 ` Karel Gardas
2004-09-02 9:44 ` Compilation performance comparison of gcc3.4.1 and gcc3.5.0 2004-08-30 " Karel Gardas
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