Re: O(1) scheduler starvation

From: Mike Galbraith (
Date: Wed Jun 18 2003 - 12:17:00 EST

At 09:52 AM 6/18/2003 -0700, William Lee Irwin III wrote:
>On Wed, Jun 18, 2003 at 02:04:45PM +0200, Mike Galbraith wrote:
> > I've got thud licked (without the restricting sleep to time_slice),
> > test-starve works right as well, and interactivity is up. Tasks waking
> > each other in a loop is a bitch and a half though, and need to be beaten
> > about the head and shoulders. Going to a synchronous wakeup for pipes
> > (talking stock kernel now) cures irman process_load's ability to starve...
> > IFF you're running it from a vt. If you're in an xterm, it'll still climb
> > up from the bottom (only place where it can't starve anybody) and starve
> > via pass-the-baton wakeup DoS. That will/does take the joy out of using
> > xmms. If xmms didn't use multiple threads, it'd be much worse... right
> > now, you'll lose eye-candy [cpu hungry visualization stuff] before you
> lose
> > sound [at next song].
>That's great. I'd love to see the patch.

If I can get the kinks worked out and still have something left. I'm
gaining on the darn thing, but only a net millimeter at a time... with much
cha-cha-cha action in between ;-)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Mon Jun 23 2003 - 22:00:25 EST