From: Borislav Petkov <bp@alien8.de>
To: "Rus V. Brushkoff" <brushkoff@gmail.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: AMD SP5100 SATA low perfomance
Date: Tue, 24 Jul 2012 22:44:54 +0200 [thread overview]
Message-ID: <20120724204454.GC5167@liondog.tnic> (raw)
In-Reply-To: <CAKu2wpS-9T+jeab4HoBozuxa-7LPVCL3+3JZok-QkTHs6CNksA@mail.gmail.com>
On Tue, Jul 24, 2012 at 09:34:57PM +0300, Rus V. Brushkoff wrote:
> Hello All !
>
> I'm observing the problem with AMD SP5100 SATA controller. The
> problem appears as very low (2-3MB/s) write perfomance. Reading drops
> too, but not such dramatically (from 100Mb/s on other hardware to
> 50-60Mb/s on SP5100). This problem is checked on several kernels
> (2.6.x, 3.2.x, 3.4.x) including latest 3.5 and with all possible SATA
> BIOS settings. The hardware is Tyan S8005 m/b (latest BIOS v1.03), AMD
> X6 1045T, 8GB ECC memory and Hitachi HTS725050A7E630 drive. Moreover
> - I've checked 2 different identical boxes - it is 100% reproducable
> on both.
Have you tried doing the same test on the same mobo but with another
drive, possibly by another manufacturer? Do you see the same write
slowdown with the second drive too?
Thanks.
--
Regards/Gruss,
Boris.
next prev parent reply other threads:[~2012-07-24 20:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-24 18:34 AMD SP5100 SATA low perfomance Rus V. Brushkoff
2012-07-24 20:44 ` Borislav Petkov [this message]
2012-07-25 6:47 ` Rus V. Brushkoff
2012-07-26 10:04 ` Borislav Petkov
2012-07-26 10:07 ` Rus V. Brushkoff
2012-07-26 13:48 ` Rus V. Brushkoff
2012-07-26 14:36 ` Rus V. Brushkoff
[not found] ` <20120726180854.GD9161@aftab.osrc.amd.com>
[not found] ` <CAKu2wpThVHc9nAL=xvcPSKcv-cnOFp+Y41CpQyxsqo292FzjRA@mail.gmail.com>
2012-07-27 8:23 ` Rus V. Brushkoff
2012-07-27 9:07 ` Borislav Petkov
2012-07-27 9:22 ` Rus V. Brushkoff
2012-07-27 10:25 ` Borislav Petkov
2012-07-27 10:39 ` Rus V. Brushkoff
2012-07-27 10:57 ` Dave Howorth
2012-07-27 11:17 ` Rus V. Brushkoff
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=20120724204454.GC5167@liondog.tnic \
--to=bp@alien8.de \
--cc=borislav.petkov@amd.com \
--cc=brushkoff@gmail.com \
--cc=linux-ide@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox