From: Ingo Molnar <mingo@redhat.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [patch] HT scheduler, sched-2.5.68-A9
Date: Wed, 23 Apr 2003 05:12:29 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.44.0304230510480.11873-100000@devserv.devel.redhat.com> (raw)
In-Reply-To: <1490710000.1051055323@flay>
On Tue, 22 Apr 2003, Martin J. Bligh wrote:
> Hmmm. When the machine is loaded up fully, this seems OK, but for lower
> loads, it seems to have a significant degredation. This is on my normal
> 16-way machine, no HT at all ... just checking for degredations. At a
> guess, maybe it's bouncing stuff around between runqueues under low
> loads?
hm - it should not cause any change in the non-HT case. Oh, there's one
thing that could make a difference on SMP - could you change
AGRESSIVE_IDLE_STEAL back to 0?
> Are there things embedded in here that change stuff for non-HT machines?
not intentionally, but apparently there's some sort of effect. The idle
steal thing could explain it.
Ingo
prev parent reply other threads:[~2003-04-23 9:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-21 19:13 Ingo Molnar
2003-04-22 4:01 ` Dave Jones
2003-04-22 7:08 ` Ingo Molnar
2003-04-22 10:18 ` Rick Lindsley
2003-04-22 10:34 ` Ingo Molnar
2003-04-22 11:10 ` Rick Lindsley
2003-04-22 11:27 ` Ingo Molnar
2003-04-22 22:16 ` several messages Bill Davidsen
2003-04-22 23:38 ` Rick Lindsley
2003-04-23 9:17 ` Ingo Molnar
2003-04-22 23:48 ` [patch] HT scheduler, sched-2.5.68-A9 Martin J. Bligh
2003-04-23 9:12 ` Ingo Molnar [this message]
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=Pine.LNX.4.44.0304230510480.11873-100000@devserv.devel.redhat.com \
--to=mingo@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mbligh@aracnet.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®