Subject: Re: jerky interactive behavior
To: Steven M. Bellovin <smb@cs.columbia.edu>
From: Perry E. Metzger <perry@piermont.com>
List: current-users
Date: 01/21/2007 16:48:15
"Steven M. Bellovin" <smb@cs.columbia.edu> writes:
>> As of Jan, something seems to have broken BUFQ_READPRIO -- unclear who
>> did it or why, but it is very clear to me that it got broken. The
>> old symptoms of lots of disk i/o locking out userland processes trying
>> to read something have returned.
>>
> I do indeed have BUFQ_READPRIO defined, but I'm far from convinced that
> that's the problem -- this is happening without any disk-intensive
> activity going on in the background. Sure, there's always something
> some daemon is doing, but I've tried shutting down other things.
I've been looking very carefully at my disk light when the hangs
happen, and there is usually disk i/o in progress when the hangs
occur. Are you sure your disk light on your T41 isn't going off at the
same time at all?
Perry