From: "David S. Miller" <davem@redhat.com>
To: Keith Owens <kaos@ocs.com.au>
Cc: torvalds@osdl.org, pavel@ucw.cz, zwane@linuxpower.ca,
linux-kernel@vger.kernel.org, akpm@osdl.org, mpm@selenic.com
Subject: Re: [PATCH][2.6] Completely out of line spinlocks / i386
Date: Wed, 11 Aug 2004 17:39:35 -0700 [thread overview]
Message-ID: <20040811173935.5f23e348.davem@redhat.com> (raw)
In-Reply-To: <23701.1092268910@ocs3.ocs.com.au>
On Thu, 12 Aug 2004 10:01:50 +1000
Keith Owens <kaos@ocs.com.au> wrote:
> Tweak the profile code to detect that the instruction pointer is in the
> out of line spinlock code and replace the ip with the caller's ip. We
> already do that for ia64, where the out of line spinlock code is a big
> win. A kdb backtrace on an ia64 contended lock will even decode the
> address of the lock, which is only possible because the lock address is
> in a known location for this case.
We were doing this on sparc64 as well.
next prev parent reply other threads:[~2004-08-12 0:44 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-08 4:49 [PATCH][2.6] Completely out of line spinlocks / i386 Zwane Mwaikambo
2004-08-08 5:01 ` Linus Torvalds
2004-08-08 5:17 ` Zwane Mwaikambo
2004-08-08 5:21 ` Linus Torvalds
2004-08-08 6:00 ` Zwane Mwaikambo
2004-08-08 12:33 ` Andreas Schwab
2004-08-08 18:26 ` Zwane Mwaikambo
2004-08-11 21:59 ` Pavel Machek
2004-08-11 22:13 ` Linus Torvalds
2004-08-11 22:23 ` William Lee Irwin III
2004-08-12 0:01 ` Keith Owens
2004-08-12 0:39 ` David S. Miller [this message]
2004-08-12 0:54 ` Zwane Mwaikambo
2004-08-12 1:01 ` William Lee Irwin III
2004-08-12 1:37 ` Zwane Mwaikambo
2004-08-12 2:04 ` William Lee Irwin III
2004-08-12 7:20 ` William Lee Irwin III
2004-08-12 7:23 ` William Lee Irwin III
2004-08-12 7:25 ` William Lee Irwin III
2004-08-12 8:12 ` Zwane Mwaikambo
2004-08-12 8:11 ` William Lee Irwin III
2004-08-12 8:54 ` William Lee Irwin III
2004-08-13 8:01 ` William Lee Irwin III
2004-08-13 9:16 ` William Lee Irwin III
2004-08-13 9:30 ` William Lee Irwin III
2004-08-13 9:46 ` William Lee Irwin III
2004-08-13 10:05 ` William Lee Irwin III
2004-08-13 10:23 ` William Lee Irwin III
2004-08-13 10:39 ` William Lee Irwin III
2004-08-13 14:15 ` Zwane Mwaikambo
2004-08-13 14:29 ` William Lee Irwin III
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