From: William Lee Irwin III <wli@holomorphy.com>
To: Robert Love <rml@tech9.net>
Cc: Con Kolivas <kernel@kolivas.org>,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
Zwane Mwaikambo <zwane@linuxpower.ca>
Subject: Re: [BENCHMARK] 100Hz preempt v nopreempt contest results
Date: Tue, 3 Jun 2003 10:24:31 -0700 [thread overview]
Message-ID: <20030603172431.GW8978@holomorphy.com> (raw)
In-Reply-To: <1054659956.633.85.camel@localhost>
On Mon, 2003-06-02 at 23:39, Con Kolivas wrote:
>> Note this time the ratio is less useful since they are both 100Hz. The
>> difference this time shows a large preempt improvement in process_load much
>> like 1000Hz did. Interestingly, even unloaded kernels no_load and cache_load
>> runs are faster with preempt. Only in xtar_load (repeatedly extracting a tar
>> with multiple small files) was no preempt faster.
On Tue, Jun 03, 2003 at 10:05:58AM -0700, Robert Love wrote:
> Thanks for running these, Con.
> I think this is an example of kernel preemption doing exactly what we
> want it to (improve interactive performance)... probably primarily
> because of the more accurate timeslice distribution.
> Would be interested to figure out why xtar_load is slower.
It would be helpful to get more accurate time accounting a la Mike
Galbraith's patches.
-- wli
prev parent reply other threads:[~2003-06-03 17:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-03 6:39 [BENCHMARK] 100Hz preempt v nopreempt contest results Con Kolivas
2003-06-03 17:05 ` Robert Love
2003-06-03 17:24 ` William Lee Irwin III [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=20030603172431.GW8978@holomorphy.com \
--to=wli@holomorphy.com \
--cc=kernel@kolivas.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rml@tech9.net \
--cc=zwane@linuxpower.ca \
/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.