lkml.org 
[lkml]   [2000]   [Oct]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: ide/disk perf?
Interesting theory, but no go here.

I just remembered one other thing that may have an impact. I have a
IBM-DTLA-307045 (~45 GB i think) hanging off the same channel as slave.
The thing with that one is that if I try to do a lot of i/o on the
disk..my machine locks up. Hard. alt-sysReq doesn't even work.

I'll try disconnecting that drive when I get a chance but I welcome any
feedback/theories before I get home to do this.

Andrew Morton wrote:
>
> I had the same problem with Seagate ST313021A (13 gig) drives on
> BP6/HPT366/UDMA66. Initial throughput reported by `hdparm -t' was 22
> megs/sec which would slowly wilt to 5 megs/sec.
>
> I discovered that sending _any_ reconfiguration command to the drive -
> even one which was not supported by that particular drive - would bring
> the performance back.
>
> So when it goes slow, try running, say, `hdparm -A1' and see what
> happens.
>
> Andre and I scratched each others heads for a while, suspected a
> firmware bug. He sent an email to a contact at Seagate. This was in
> April, so I guess that person is a very slow typist.

--

=====================================================================
Mohammad A. Haque http://www.haque.net/
mhaque@haque.net

"Alcohol and calculus don't mix. Project Lead
Don't drink and derive." --Unknown http://wm.themes.org/
batmanppc@themes.org
=====================================================================
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:45    [W:0.066 / U:17.820 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site