From: "Oliver M. Bolzer" <oliver@gol.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Success with Promise FastTrak S150 TX4 (Re: [BK PATCHES] libata fixes)
Date: Mon, 10 Nov 2003 18:26:13 +0100 [thread overview]
Message-ID: <20031110172613.GA2962@magi.fakeroot.net> (raw)
In-Reply-To: <3FAFBC28.5000600@pobox.com>
On Mon, Nov 10, 2003 at 11:26:16AM -0500, Jeff Garzik <jgarzik@pobox.com> wrote...
> ># A first quick run of bonnie++ seems to show 2.6.0-test9+libata several
> ># %s slower then 2.4.22+ft3xx, but that might be related to differences
> ># between 2.4 and 2.6.
>
> One possibility is that queueing is not yet enabled in my sata_promise
> driver. Several of the SATA drivers support having multiple commands
> outstanding per driver (tagged command queueing), but I need to do a bit
> more work before I can enable queueing in the core.
I disabled /dev/mdX Software-RAID5 on two of the boxes that have the
hardware (got 8 of them) and did some preliminary benchmarking using
bonnie++ 1.02b. The hardware is P4-2.4GHz, 1GB RAM (highmem-enabled) wich
4 Maxtor SATA-drives with 200GBs each. The partitions I ran the tests
on are 186GB large.
2.4.22 + Promise ft3xx
silo4:/dev/sda3
Version 1.02b ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
silo4.rz.informa 2G 27330 95 62522 19 22619 6 29056 98 56311 6 159.7 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 3007 98 +++++ +++ +++++ +++ 3087 99 +++++ +++ 9173 100
silo4,2G,27330,95,62522,19,22619,6,29056,98,56311,6,159.7,0,16,3007,98,+++++,+++,+++++,+++,3087,99,+++++,+++,9173,100
==========
2.4.22-bk48 + 2.4.22-bk48-libata1
silo5:/dev/sda3
Version 1.02b ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
silo5.rz.informa 2G 28068 96 61698 18 23174 5 24372 77 56009 6 175.1 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 2986 97 +++++ +++ +++++ +++ 3136 99 +++++ +++ 9867 98
silo5,2G,28068,96,61698,18,23174,5,24372,77,56009,6,175.1,0,16,2986,97,+++++,+++,+++++,+++,3136,99,+++++,+++,9867,98
The performance differences are not that big that they would really
matter. One is better at one direction while the other is better at the
other direction.
I am REALLY happy that a free-as-in-freedom driver exist for the hardware
that has a much more certain future thant a
looks-like-GPL-on-the-first-look-but-one--.o-has-no-source driver. And
the libata code was really nice to read and follow, even though I knew
almost nothing about disk driver. THANK YOU!
--
Oliver M. Bolzer
oliver@gol.com
GPG (PGP) Fingerprint = 621B 52F6 2AC1 36DB 8761 018F 8786 87AD EF50 D1FF
next prev parent reply other threads:[~2003-11-10 17:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-08 17:26 [BK PATCHES] libata fixes Jeff Garzik
2003-11-08 20:16 ` Sergey Vlasov
2003-11-08 20:23 ` Jeff Garzik
2003-11-10 9:52 ` Success with Promise FastTrak S150 TX4 (Re: [BK PATCHES] libata fixes) Oliver M. Bolzer
2003-11-10 16:26 ` Jeff Garzik
2003-11-10 17:26 ` Oliver M. Bolzer [this message]
2003-11-10 18:35 ` Jeff Garzik
2003-11-11 6:03 ` Kevin P. Fleming
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=20031110172613.GA2962@magi.fakeroot.net \
--to=oliver@gol.com \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).