From: Andrew Morton <akpm@digeo.com>
To: Jens Axboe <axboe@suse.de>
Cc: Con Kolivas <conman@kolivas.net>,
linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [BENCHMARK] 2.5.44-mm6 contest results
Date: Mon, 28 Oct 2002 23:51:57 -0800 [thread overview]
Message-ID: <3DBE3E1D.F505D85B@digeo.com> (raw)
In-Reply-To: 20021029074025.GP2937@suse.de
Jens Axboe wrote:
>
> On Mon, Oct 28 2002, Andrew Morton wrote:
> > Con Kolivas wrote:
> > >
> > > io_load:
> > > Kernel [runs] Time CPU% Loads LCPU% Ratio
> > > 2.5.44 [3] 873.8 9 69 12 12.24
> > > 2.5.44-mm1 [3] 347.3 22 35 15 4.86
> > > 2.5.44-mm2 [3] 294.2 28 19 10 4.12
> > > 2.5.44-mm4 [3] 358.7 23 25 10 5.02
> > > 2.5.44-mm5 [4] 270.7 29 18 11 3.79
> > > 2.5.44-mm6 [3] 284.1 28 20 10 3.98
> >
> > Jens, I think I prefer fifo_batch=16. We do need to expose
> > these in /somewhere so people can fiddle with them.
>
> I was hoping someone else would do comprehensive disk benchmarks with
> fifo_batch=32 and fifo_batch=16, but I guess that you have to currently
> change the define in the source doesn't make that very likely. I don't
> really like your global settings (for per-queue entities), but I guess
> they can suffice until a better approach is done.
Oh sure; it's just a hack so we can experiment with it. Not that
anyone has, to my knowledge.
> I'll do some benching today.
Wouldn't hurt, but it's a complex problem. Another approach would
be to quietly change it and see who squeaks ;)
next prev parent reply other threads:[~2002-10-29 7:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-29 1:43 [BENCHMARK] 2.5.44-mm6 contest results Con Kolivas
2002-10-29 6:46 ` Andrew Morton
2002-10-29 7:40 ` Jens Axboe
2002-10-29 7:51 ` Andrew Morton [this message]
2002-10-29 8:22 ` Giuliano Pochini
2002-10-29 9:11 ` 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=3DBE3E1D.F505D85B@digeo.com \
--to=akpm@digeo.com \
--cc=axboe@suse.de \
--cc=conman@kolivas.net \
--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.