ULE status

Ion-Mihai Tetcu itetcu at people.tecnik93.com
Tue Feb 8 05:58:26 PST 2005


On Tue, 8 Feb 2005 14:45:17 +0200 (EET)
"Viktor Ivanov" <v0rbiz at icon.bg> wrote:

> On Tue, Ôåâðóàðè 8, 2005 14:33, Michael Nottebrock êàçà:
> > On Tuesday, 8. February 2005 13:07, Mipam wrote:
> >> I saw several changes to sched_ule.c in the 5 stable branch.
> >> Beneath is one of them:
> >>
> >> http://lists.freebsd.org/pipermail/cvs-src/2005-February/039863.html
> >>
> >> Is the ULE scheduler still far from stable in RELENG_5 or not?
> >
> > You can now compile a kernel with options SCHED_ULE again. How well it
> > works
> > is for yourself to determine :-) (I've been using it on my UP machine here
> > since yesterday only).
> 
> Hi there
> 
> I've been using only SCHED_ULE on my UP WS, even when there was #error
> def. It never broke, not even once :) Though I think there's trouble
> with SMP and/or HTT. I tried it once on a P4 and it paniced.
> 
> On the other hand, using SCHED_ULE improves sound quality and general
> system 'response' concerning GUI... don't know 'bout performance.

By any chance does it help with copying from ata disks on different
controllers ? For me on large files this brings up "swap_pager:
indefinite wait buffer" with 4BSD.


-- 
IOnut
Unregistered ;) FreeBSD "user"




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