> >On my 3 1394 drives I get about 18MB/S, 24MB/S and 24MB/S. The 18MB/S > >drive is the oldest (and smallest at 40GB) of the three. > > > > > That sounds very slow. I get 36,7MB/s (hdparm -t /dev/hda) on the > harddisk in my laptop from last year (1400MB/s with hdparm -T /dev/hda). > Newer stationary disks are probably faster. Is it 1394 that makes it > that slow or it it just low rotation frequency? > --
1394 is not slow - Linux-1394 is slow. It's a bit of a technical discussion probably better had off line if you're really interested but 1394 itself is pretty fast, although not as fast as an internal EIDE drive or SATA. You do pay a bit for having the flexibility of hotplugging and portability. 1394a should run at about 40MB, and does under Windows. The reason it's not fast under Linux is well nderstood (as I said, I can make it go fast for a few minutes or hours) but there are no developers actively doing anything to take care of this at this time, nor are they apparently scheduling time. Any wanna-be 1394 driver developers who'd be interested in looking into bus optimization please get in contact. It's would make lots of us user types really happy. ;-) Cheers, Mark - Mark -- gentoo-user@gentoo.org mailing list
