From: Jens Axboe <axboe@suse.de>
To: Con Kolivas <ckolivas@yahoo.com.au>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [BENCHMARK] 2.5.60-cfq with contest
Date: Tue, 11 Feb 2003 14:37:09 +0100 [thread overview]
Message-ID: <20030211133709.GO930@suse.de> (raw)
In-Reply-To: <20030211105944.GB930@suse.de>
On Tue, Feb 11 2003, Jens Axboe wrote:
> > Write based loads hurt. No breakages, but needs tuning.
>
> That's not even as bad as I had feared. I'll try to do some tuning with
> contest locally.
Here are my results, for 2.5.60 vanilla, 2.5.60 + cfq with default
quantum of 16 (what you tested, too), and 2.5.60 + cfq without quantum
setting. The latter should be the fairest, only moves one request from
the pending queues.
no_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 31 177.4 0 0.0 1.00
2.5.60-cfq0 2 31 174.2 0 0.0 1.00
2.5.60-cfq16 2 31 177.4 0 0.0 1.00
cacherun:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 29 182.8 0 0.0 0.94
2.5.60-cfq0 2 28 192.9 0 0.0 0.90
2.5.60-cfq16 2 29 182.8 0 0.0 0.94
process_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 38 142.1 12 47.4 1.23
2.5.60-cfq0 2 41 129.3 16 61.0 1.32
2.5.60-cfq16 2 37 145.9 12 43.2 1.19
ctar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 38 147.4 0 0.0 1.23
2.5.60-cfq0 2 36 155.6 0 0.0 1.16
2.5.60-cfq16 2 36 155.6 0 0.0 1.16
xtar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 40 140.0 0 2.5 1.29
2.5.60-cfq0 2 37 148.6 0 2.7 1.19
2.5.60-cfq16 2 40 137.5 0 2.5 1.29
io_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 93 61.3 2 14.0 3.00
2.5.60-cfq0 4 103 54.4 2 12.6 3.32
2.5.60-cfq16 2 264 21.6 12 19.9 8.52
read_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 40 140.0 0 5.0 1.29
2.5.60-cfq0 2 39 143.6 0 5.1 1.26
2.5.60-cfq16 2 40 140.0 0 5.0 1.29
list_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 35 157.1 0 8.6 1.13
2.5.60-cfq0 2 35 160.0 0 8.6 1.13
2.5.60-cfq16 2 35 160.0 0 14.3 1.13
mem_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 50 116.0 75 10.0 1.61
2.5.60-cfq0 2 57 101.8 78 8.8 1.84
2.5.60-cfq16 2 60 96.7 80 8.2 1.94
dbench_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.60 2 36 155.6 12693 27.8 1.16
2.5.60-cfq0 1 35 157.1 12013 28.6 1.13
2.5.60-cfq16 2 37 151.4 14356 32.4 1.19
--
Jens Axboe
next prev parent reply other threads:[~2003-02-11 13:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-11 10:55 [BENCHMARK] 2.5.60-cfq with contest Con Kolivas
2003-02-11 10:59 ` Jens Axboe
2003-02-11 13:37 ` Jens Axboe [this message]
2003-02-11 14:49 ` Jens Axboe
2003-02-12 10:47 ` Con Kolivas
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=20030211133709.GO930@suse.de \
--to=axboe@suse.de \
--cc=ckolivas@yahoo.com.au \
--cc=linux-kernel@vger.kernel.org \
/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.