* Oliver Kiddle <[EMAIL PROTECTED]> [2007-07-11 11:27]: > After installing Debian, I've found that the disc speed as reported by > hdparm has gone down. Before, I was getting: ... > Whereas now I get: > Timing cached reads: 60 MB in 2.00 seconds = 29.95 MB/sec > Timing buffered disk reads: 60 MB in 3.07 seconds = 19.53 MB/sec
Apologies for not answering your message back in July. Paul Fryer recently made me aware of that problem again and I looked at it today. First of all, I see about the same peformance as you do. Second, I tried two tests with 2.6.22 to see what might make a difference but I couldn't increase the performance: - First, I reverted that R_ERR on DMA activate FIS errata fix which you noticed in dmesg. Reverting this fix does not increase performance. - Second, I applied Intel's IOP patches from SourceForge but again they didn't help. So I'm not quite sure why Debian with a modern kernel is much slower to whatever Thecus' firmware was using. If anyone else has any good ideas I'd love to hear them. -- Martin Michlmayr http://www.cyrius.com/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]