Subject: Re: kern/8217: periodic pciide pauses?
To: None <email@example.com>
From: Matthias Scheler <firstname.lastname@example.org>
Date: 08/17/1999 21:53:13
In article <199908172122.VAA17097@orchard.arlington.ma.us>,
email@example.com (Bill Sommerfeld) writes:
> the behavior reported in this PR has been observed on multiple
> systems by multiple users (myself, Perry Metzger, Mattias Scheler)
> During periods of heavy disk i/o to UDMA pciide drives, programs will
> periodically "freeze" for up to about 5 seconds and then start up
A few seconds ago I experienced this problem with a SCSI disk, too. It
happened while extracting a "tar" archive from a NFS filesystem to a
local filesystem on an UW SCSI disk. So it's obviously not related to
the PCI IDE driver.
I suppose it is more related to buffer management because all affected
boxes have lots of memory (either 128 or 256MB).
Matthias Scheler http://www.sighardstrasse.de/~tron/