Messages in this thread | | | Date | Tue, 29 Sep 1998 11:59:47 +0200 (CEST) | From | Rik van Riel <> | Subject | Re: [PATCH] scheduler patch, faster still |
| |
On Tue, 29 Sep 1998, Richard Gooch wrote:
> Finally, I will again point out to all the naysayers out there, that > the change I propose: > > - adds very little extra code > - simplies existing code paths > - improves RT performance under all conditions
These 3 points are definately true.
> - improves non-RT performance under all conditions
I'm not sure about this... I am sure that we won't be able to measure the difference however ;) My doubt is mainly between improvement and no improvement. Like Richard, I'm quite sure that there won't be any loss.
> - properly isolates RT processes from normal processes in the > scheduler > - reduces the scope for bugs in the scheduler code.
These points are valid too. In the current scheduler code, a process meets 3 separate tests if(p->policy != SCHED_OTHER), it sure would be nice to separate the paths and make the asm a little bit more straightforward (and faster).
Rik. +-------------------------------------------------------------------+ | Linux memory management tour guide. H.H.vanRiel@phys.uu.nl | | Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ | +-------------------------------------------------------------------+
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |