From: Andrea Arcangeli <andrea@suse.de>
To: David Howells <dhowells@warthog.cambridge.redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: rwsem benchmark [was Re: [PATCH] rw_semaphores, optimisations try #3]
Date: Tue, 24 Apr 2001 12:46:21 +0200 [thread overview]
Message-ID: <20010424124621.D1682@athlon.random> (raw)
In-Reply-To: <20010424121747.A1682@athlon.random> <6252.988108393@warthog.cambridge.redhat.com>
In-Reply-To: <6252.988108393@warthog.cambridge.redhat.com>; from dhowells@warthog.cambridge.redhat.com on Tue, Apr 24, 2001 at 11:33:13AM +0100
On Tue, Apr 24, 2001 at 11:33:13AM +0100, David Howells wrote:
> *grin* Fun ain't it... Try it on a dual athlon or P4 and the answer may come
> out differently.
compile with -mathlon and the compiler then should generate (%%eax) if that's
faster even if the sem is a constant, that's a compiler issue IMHO, I just give the
compiler the flexibility to do the right choice.
Andrea
next prev parent reply other threads:[~2001-04-24 10:46 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-23 20:35 [PATCH] rw_semaphores, optimisations try #3 D.W.Howells
2001-04-23 21:34 ` Andrea Arcangeli
2001-04-24 4:56 ` rwsem benchmark [was Re: [PATCH] rw_semaphores, optimisations try #3] Andrea Arcangeli
2001-04-24 8:56 ` David Howells
2001-04-24 9:49 ` Andrea Arcangeli
2001-04-24 10:25 ` David Howells
2001-04-24 10:44 ` Andrea Arcangeli
2001-04-24 13:07 ` David Howells
2001-04-24 13:59 ` Andrea Arcangeli
2001-04-24 15:49 ` Linus Torvalds
2001-04-24 10:17 ` Andrea Arcangeli
2001-04-24 10:33 ` David Howells
2001-04-24 10:46 ` Andrea Arcangeli [this message]
2001-04-24 12:19 ` Andrea Arcangeli
2001-04-24 13:10 ` Andrea Arcangeli
2001-04-23 22:23 ` [PATCH] rw_semaphores, optimisations try #3 Linus Torvalds
2001-04-24 10:05 ` David Howells
2001-04-24 15:40 ` Linus Torvalds
2001-04-24 16:37 ` David Howells
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