Messages in this thread |  | | | Date | Mon, 28 Jul 2003 23:29:39 +0200 | | From | Wiktor Wodecki <> | | Subject | Re: [PATCH] O10int for interactivity |
| |
On Mon, Jul 28, 2003 at 11:40:41AM -0700, Andrew Morton wrote: > Valdis.Kletnieks@vt.edu wrote: > > > > I am, however, able to get 'xmms' to skip. The reason is that the CPU is being > > scheduled quite adequately, but I/O is *NOT*. > > > > ... > > I'm guessing that the anticipatory scheduler is the culprit here. Soon as I figure > > out the incantations to use the deadline scheduler, I'll report back.... > > Try decreasing the expiry times in /sys/block/hda/queue/iosched: > > read_batch_expire > read_expire > write_batch_expire > write_expire
I noticed that when bringing a huge application out of swap (mozilla, openoffice, also tested the gimp with 50 images open) that dividing everything by 2 in those 4 files I get a decent process fork. Without this tuning the fork (xterm) waits till the application is back up.
-- Regards,
Wiktor Wodecki [unhandled content-type:application/pgp-signature] |  |