From: Jens Axboe <axboe@suse.de>
To: Ondrej Zary <linux@rainbow-software.org>
Cc: "André Tomt" <andre@tomt.net>, "Al Boldi" <a1426z@gawab.com>,
"'Bartlomiej Zolnierkiewicz'" <bzolnier@gmail.com>,
"'Linus Torvalds'" <torvalds@osdl.org>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [git patches] IDE update
Date: Tue, 05 Jul 2005 14:51:39 +0200 [thread overview]
Message-ID: <1120567900.12942.8.camel@linux> (raw)
In-Reply-To: <42CA7EA9.1010409@rainbow-software.org>
On Tue, 2005-07-05 at 14:35 +0200, Ondrej Zary wrote:
> >>>>2.4.26
> >>>>root@pentium:/home/rainbow# time dd if=/dev/hda of=/dev/null bs=512
> >>>>count=1048576
> >>>>1048576+0 records in
> >>>>1048576+0 records out
> >>>>
> >>>>real 0m23.858s
> >>>>user 0m1.750s
> >>>>sys 0m15.180s
> >>>
> >>>
> >>>Perhaps some read-ahead bug. What happens if you use bs=128k for
> >>>instance?
> >>>
> >>
> >>Nothing - it's still the same.
> >>
> >>root@pentium:/home/rainbow# time dd if=/dev/hda of=/dev/null bs=128k
> >>count=4096
> >>4096+0 records in
> >>4096+0 records out
> >>
> >>real 0m32.832s
> >>user 0m0.040s
> >>sys 0m15.670s
> >
> >
> > Can you post full dmesg of 2.4 and 2.6 kernel boot? What does hdparm
> > -I/-i say for both kernels?
> >
>
> The 2.4.26 kernel is the one from Slackware 10.0 bootable install CD.
> dmesg outputs attached, hdparm -i and hdparm -I shows the same in both
> kernels (compared using diff) - attached too.
Ok, looks alright for both. Your machine is quite slow, perhaps that is
showing the slower performance. Can you try and make HZ 100 in 2.6 and
test again? 2.6.13-recent has it as a config option, otherwise edit
include/asm/param.h appropriately.
--
Jens Axboe <axboe@suse.de>
next prev parent reply other threads:[~2005-07-05 12:48 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-03 16:52 [git patches] IDE update Bartlomiej Zolnierkiewicz
2005-07-04 12:01 ` Al Boldi
2005-07-04 12:30 ` Bartlomiej Zolnierkiewicz
2005-07-04 15:30 ` Al Boldi
2005-07-04 15:41 ` Bartlomiej Zolnierkiewicz
2005-07-04 17:06 ` Al Boldi
2005-07-04 17:38 ` Ondrej Zary
2005-07-04 19:51 ` Bartlomiej Zolnierkiewicz
2005-07-04 20:32 ` Al Boldi
2005-07-04 20:47 ` Bartlomiej Zolnierkiewicz
2005-07-04 23:25 ` André Tomt
2005-07-05 3:43 ` IOWAIT block layer problem Al Boldi
2005-07-05 10:01 ` [git patches] IDE update Ondrej Zary
2005-07-05 10:14 ` Jens Axboe
2005-07-05 10:19 ` Ondrej Zary
2005-07-05 10:42 ` Jens Axboe
2005-07-05 12:35 ` Ondrej Zary
2005-07-05 12:51 ` Jens Axboe [this message]
2005-07-05 13:02 ` Ondrej Zary
2005-07-05 13:11 ` Jens Axboe
2005-07-05 15:51 ` Ondrej Zary
2005-07-05 14:21 ` Jens Axboe
2005-07-05 15:00 ` Ondrej Zary
2005-07-05 19:18 ` Jens Axboe
2005-07-05 19:25 ` Jens Axboe
2005-07-05 21:36 ` Ondrej Zary
2005-07-05 17:27 ` Linus Torvalds
2005-07-05 19:14 ` Jens Axboe
2005-07-05 21:39 ` Ondrej Zary
2005-07-11 14:21 ` Alan Cox
2005-07-06 0:35 ` Grant Coady
2005-07-06 0:51 ` Linus Torvalds
2005-07-06 3:26 ` Al Boldi
2005-07-06 4:56 ` Grant Coady
2005-07-06 5:22 ` Linus Torvalds
2005-07-08 8:48 ` Jens Axboe
2005-07-08 10:20 ` Ingo Molnar
2005-07-08 11:45 ` Jens Axboe
2005-07-07 22:32 ` Mark Lord
2005-07-08 0:06 ` Grant Coady
2005-07-08 11:37 ` Erik Slagter
2005-07-06 20:56 ` Bill Davidsen
2005-07-07 13:47 ` Ondrej Zary
2005-07-07 13:48 ` Bartlomiej Zolnierkiewicz
2005-07-07 19:34 ` Bill Davidsen
2005-07-05 2:47 ` Jeff Garzik
-- strict thread matches above, loose matches on Subject: below --
2005-08-18 21:37 [git patches] ide update Bartlomiej Zolnierkiewicz
2005-08-18 22:15 ` Linus Torvalds
2005-08-18 22:19 ` Nish Aravamudan
2005-08-19 0:44 ` Mark Lord
2005-08-18 23:08 ` Alan Cox
2005-08-19 9:02 ` Bartlomiej Zolnierkiewicz
2005-08-19 18:06 ` Alan Cox
2005-08-19 23:51 ` Bartlomiej Zolnierkiewicz
2005-08-19 23:52 ` Bartlomiej Zolnierkiewicz
2005-11-10 1:00 Bartlomiej Zolnierkiewicz
2005-11-18 23:21 Bartlomiej Zolnierkiewicz
2005-11-19 23:46 Bartlomiej Zolnierkiewicz
2005-12-15 2:03 Bartlomiej Zolnierkiewicz
2007-05-09 22:46 [git patches] IDE update Bartlomiej Zolnierkiewicz
2007-05-09 22:46 ` Jeff Garzik
2007-05-09 23:20 ` David Miller
2007-05-09 23:23 ` Bartlomiej Zolnierkiewicz
2007-05-09 23:18 ` Jeff Garzik
2007-05-09 22:47 ` Jeff Garzik
2007-05-09 22:59 ` Andrew Morton
2007-05-09 23:15 ` Jeff Garzik
2007-07-09 21:46 Bartlomiej Zolnierkiewicz
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