From: Stefan Richter <stefanr@s5r6•in-berlin.de>
To: Wolfgang Pfeiffer <roto@gmx•net>
Cc: linuxppc-dev@ozlabs•org, billfink@mindspring•com,
linux1394-devel@lists•sourceforge.net
Subject: Re: Broken Firewire 400/SCSI on ppc Powerbook5,8
Date: Mon, 04 Sep 2006 18:58:40 +0200 [thread overview]
Message-ID: <44FC5B40.5000308@s5r6.in-berlin.de> (raw)
In-Reply-To: <20060902232644.GB2814@localhost>
Wolfgang Pfeiffer wrote on :
...
> # /sbin/hdparm -tT /dev/sda
>
> /dev/sda:
> Timing cached reads: 1244 MB in 2.00 seconds = 620.49 MB/sec
> Timing buffered disk reads: 34 MB in 3.02 seconds = 11.24 MB/sec
...
> Timing buffered disk reads: 34 MB in 3.04 seconds = 11.17 MB/sec
...
> Timing buffered disk reads: 36 MB in 3.07 seconds = 11.72 MB/sec
...
Looks quite slow. I get 18 MB/s from a 20GB 2.5" HDD in an 1394a
enclosure, on an 1394a adapter or same on an 1394b adapter. The HDD was
actually taken out of a TiBook some time ago.
But I have no reference values of PowerBooks in target disk mode. This
mode is probably not optimized for performance.
--
Stefan Richter
-=====-=-==- =--= --=--
http://arcgraph.de/sr/
next prev parent reply other threads:[~2006-09-04 16:59 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-17 23:03 Broken Firewire 400/SCSI on ppc Powerbook5,8 Wolfgang Pfeiffer
2006-08-18 5:28 ` Bill Fink
2006-08-18 10:17 ` Wolfgang Pfeiffer
2006-08-19 9:32 ` Stefan Richter
2006-08-20 0:18 ` Bill Fink
2006-08-22 8:58 ` Stefan Richter
2006-08-18 23:49 ` Wolfgang Pfeiffer
2006-08-19 9:13 ` Stefan Richter
2006-08-20 1:31 ` Wolfgang Pfeiffer
2006-08-21 7:56 ` Stefan Richter
2006-08-21 0:29 ` Wolfgang Pfeiffer
2006-08-21 0:40 ` Wolfgang Pfeiffer
2006-08-23 0:28 ` Wolfgang Pfeiffer
2006-08-23 0:36 ` Wolfgang Pfeiffer
2006-08-23 1:50 ` [Correction #2] " Wolfgang Pfeiffer
2006-08-24 19:22 ` Wolfgang Pfeiffer
2006-08-24 19:43 ` Stefan Richter
2006-08-24 22:56 ` Wolfgang Pfeiffer
2006-09-02 19:18 ` Stefan Richter
2006-09-02 23:08 ` Wolfgang Pfeiffer
2006-09-02 23:28 ` Stefan Richter
2006-09-02 23:26 ` Wolfgang Pfeiffer
2006-09-04 16:58 ` Stefan Richter [this message]
2006-08-19 8:10 ` Stefan Richter
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