Re: Broken Firewire 400/SCSI on ppc Powerbook5,8
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: 2006-09-04 16:59:00
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/