From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.54) id 1EzxX3-0000FN-7k for garchives@archives.gentoo.org; Fri, 20 Jan 2006 14:46:29 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k0KEhDxU003870; Fri, 20 Jan 2006 14:43:13 GMT Received: from eclipse.netsyncro.com (magic50.deanza.buildinet.net [207.135.90.50]) by robin.gentoo.org (8.13.5/8.13.5) with ESMTP id k0KEhCj9009296 for ; Fri, 20 Jan 2006 14:43:12 GMT Received: from [83.143.38.154] (unknown [83.143.38.154]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by eclipse (Postfix) with ESMTP id B7A2B2BC1D for ; Fri, 20 Jan 2006 08:20:28 +0000 (Local time zone must be set--see zic manual page) Message-ID: <43D0F6F7.6090603@netsyncro.com> Date: Fri, 20 Jan 2006 16:43:03 +0200 From: =?ISO-8859-1?Q?Christopher_Bergstr=F6m?= User-Agent: Mozilla Thunderbird 1.0.7 (X11/20050923) X-Accept-Language: en-us, en Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-performance@gentoo.org Reply-to: gentoo-performance@lists.gentoo.org MIME-Version: 1.0 To: gentoo-performance@lists.gentoo.org Subject: Re: [gentoo-performance] gentoo-performance References: <20060120004058.99380.qmail@web54514.mail.yahoo.com> <43D04AE6.4090002@gmail.com> <43D04B45.3030409@services-4u.net> <43D04FE1.3080703@gmail.com> <43D06992.30906@netsyncro.com> <20060120135137.GA4610@antec.eyeofthequark.com> In-Reply-To: <20060120135137.GA4610@antec.eyeofthequark.com> Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Archives-Salt: 7f360d49-f19d-433d-a69f-e030aec0b9f4 X-Archives-Hash: b7f7aed6f856b91555bbafd728732750 Bill Roberts wrote:

The one thing that first pops to my head is some hdparm results I've had 
and if maybe it's either my kernel setup or how I'm testing with hdparm...

Anyhow..

Raptors on SATA (Model Number:       WDC WD360GD-00FNA0) (-c3 -u1 -A1 
-W1 -d1 -a256 -M254 -m16 -X70 )
Kernel config
CONFIG_SCSI_SATA_SIL=y

There's an alternative driver, but haven't tested it...

hdparm -tT /dev/hde

/dev/hde:
Timing cached reads:   956 MB in  2.00 seconds = 477.02 MB/sec
Timing buffered disk reads:  116 MB in  3.03 seconds =  38.26 MB/sec

Your times for the raptor seem awfully slow.

Here the SATA settings for my kernel and my hdparm times.

antec ~ # grep SATA /usr/src/linux/.config
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_SCSI_SATA=y
CONFIG_SCSI_SATA_AHCI=y
# CONFIG_SCSI_SATA_SVW is not set
# CONFIG_SCSI_SATA_MV is not set
# CONFIG_SCSI_SATA_NV is not set
# CONFIG_SCSI_SATA_QSTOR is not set
# CONFIG_SCSI_SATA_PROMISE is not set
# CONFIG_SCSI_SATA_SX4 is not set
# CONFIG_SCSI_SATA_SIL is not set
# CONFIG_SCSI_SATA_SIL24 is not set
# CONFIG_SCSI_SATA_SIS is not set
# CONFIG_SCSI_SATA_ULI is not set
# CONFIG_SCSI_SATA_VIA is not set
# CONFIG_SCSI_SATA_VITESSE is not set
CONFIG_SCSI_SATA_INTEL_COMBINED=y
antec ~ # hdparm -tT /dev/md0

/dev/md0:
 Timing cached reads:   2776 MB in  2.00 seconds = 1387.91 MB/sec
 Timing buffered disk reads:  398 MB in  3.00 seconds = 132.48 MB/sec
antec ~ # 

Note that this is a RAID0 with two disks, so the buffered disk read time
is double what you should expect on a normal install.

I guess I should add that 2nd disk in there then.. Anyhow, I'm bound to what appears to be a not-so-friendly controller..

CONFIG_SCSI_SATA_SIL is not set

I'm going to change the sata_sil.c file to enable UDMA6 and I've seen some other minor patches as well.. If it all proves stable.. Maybe someone will actually get it sent upstream. What's further.. I'm on hardened.. So I think you might have some kernel config options I don't have.. I have to look again..

Cheers,

C.
-- gentoo-performance@gentoo.org mailing list