On Thu, Jun 20, 2002 at 03:49:52PM +0100, David Laight wrote:
> On Thu, Jun 20, 2002 at 04:23:26PM +0200, Wojciech Puchar wrote:
> > > > others can have 10 partitions, one can mostly do I/O on one
> > > > partition, another spread it evenly. what i don't understand?
> > >
> > > Because you may want to say, e.g. that the swap, / and /usr
> > > partition are highter priorities.  The usual way to solve this is
> > > to add more disks, but it's not always possible.
> > 
> > sounds different as an option. thanks for explanation
> 
> I wonder if people are looking in the wrong place!
> 
> Maybe the number of queued disk write requests generated by the
> pagedaemon? (ie writes that are being done to generate free pages)
> should be restricted? That way it would never take too long for a read
> request (to page something in) to be executed.  After all pages don't
> get freed faster if you have more writes scheduled.

This may be closer to the mark.... I've noticed problems with RealPlayer
skipping (and not being able to recover) under heavy paging and/or disk
access.

jf
-- 
John Franklin
franklin@elfie.org
ICBM: 35°43'56"N 78°53'27"W