From: Mike Galbraith <efault@gmx.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>,
Greg Smith <gsmith@gregsmith.com>,
lkml <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Subject: Re: PostgreSQL pgbench performance regression in 2.6.23+
Date: Thu, 22 May 2008 14:09:36 +0200 [thread overview]
Message-ID: <1211458176.5693.6.camel@marge.simson.net> (raw)
In-Reply-To: <1211456659.29104.20.camel@twins>
On Thu, 2008-05-22 at 13:44 +0200, Peter Zijlstra wrote:
> Humm,.. how to fix this.. we'd need to somehow detect the 1:n nature of
> its operation - I'm sure there are other scenarios that could benefit
> from this.
Maybe simple (minded): cache waker's last non-interrupt context wakee,
if the wakee != cached, ignore SYNC_WAKEUP unless sync was requested at
call time?
-Mike
next prev parent reply other threads:[~2008-05-22 12:09 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-21 17:34 PostgreSQL pgbench performance regression in 2.6.23+ Greg Smith
2008-05-22 7:10 ` Mike Galbraith
2008-05-22 8:28 ` Dhaval Giani
2008-05-22 9:05 ` Mike Galbraith
2008-05-22 10:34 ` Mike Galbraith
2008-05-22 11:25 ` Mike Galbraith
2008-05-22 11:44 ` Peter Zijlstra
2008-05-22 12:09 ` Mike Galbraith [this message]
2008-05-22 12:24 ` Peter Zijlstra
2008-05-22 13:16 ` Mike Galbraith
2008-05-23 7:13 ` Greg Smith
2008-05-23 10:00 ` Mike Galbraith
2008-05-23 10:10 ` Ingo Molnar
2008-05-23 10:15 ` Mike Galbraith
2008-05-23 23:18 ` Greg Smith
2008-05-23 23:46 ` Mike Galbraith
2008-05-24 8:08 ` Mike Galbraith
2008-05-27 0:28 ` Greg Smith
2008-05-27 5:59 ` [patch] " Mike Galbraith
2008-05-27 8:20 ` Mike Galbraith
2008-05-27 8:35 ` Mike Galbraith
2008-06-06 5:03 ` Greg Smith
2008-06-06 6:13 ` Mike Galbraith
2008-06-07 11:38 ` Mike Galbraith
2008-06-07 12:50 ` Mike Galbraith
2008-06-07 13:07 ` Peter Zijlstra
2008-06-07 14:16 ` Mike Galbraith
2008-06-07 16:16 ` Peter Zijlstra
2008-06-07 17:56 ` Mike Galbraith
2008-06-07 13:08 ` Peter Zijlstra
2008-06-07 14:54 ` [patch part 2] " Mike Galbraith
2008-06-07 16:12 ` Peter Zijlstra
2008-06-07 17:53 ` Mike Galbraith
2008-06-07 18:19 ` Mike Galbraith
2008-05-23 13:05 ` Mike Galbraith
2008-05-23 13:35 ` Mike Galbraith
-- strict thread matches above, loose matches on Subject: below --
2008-05-23 11:26 Anton Petrusevich
2008-05-23 18:46 ` Greg Smith
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1211458176.5693.6.camel@marge.simson.net \
--to=efault@gmx.de \
--cc=dhaval@linux.vnet.ibm.com \
--cc=gsmith@gregsmith.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=peterz@infradead.org \
--cc=vatsa@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.