Jeff Roberson wrote:
On Tue, 16 Oct 2007, Kris Kennaway wrote:
[LoN]Kamikaze wrote:
I know that RELENG_7 is not considered very near-release, but I
thought I'd
give my 2ยข in the hope that I might have a little influence on the
scheduler
development to my benefit.
The switch from RELENG_6 to RELENG_7 went relatively smooth and apart
from ipw
causing panics. However there is one thing that's disturbing and this
is the
scheduler. I only have single core machines, so whatever I say only
applies to
those. If you think single-core machines are no longer important,
feel free to
ignore this. In deed, just ignore me however much you like.
From my perspective scheduling on RELENG_6 was way better. Even on a
full
workload like a portupgrade the focused application (both in X and on
the
console) always received enough cycles to run smoothly and
applications that
ran in background like audio players also kept on running fine.
Quite the contrary on RELENG_7. During a portupgrade or even worse
'pkgdb -L'
(recovering lost dependencies) audio players (both graphical and
mplayer)
scatter, either because they don't get the hard-disk or CPU-cycles
(which one,
I don't know) and the focused application also often hangs. It just
looks like
occasionally (under load) everything freezes for a second and then
goes on
relatively normal.
I've got the impression that things compile a little faster (that
might be my
imagination, though), but I'd rather have a smooth working experience.
This is just my view of the situation and I suppose it is only one of
many. I
bid you be merciful with us single-core people, who cannot afford a
slick
multi-core machine, because we worry how to pay for our food at the
end of the
month.
Not to say that any problems that might have developed with SCHED_4BSD
should not be fixed, but you should give SCHED_ULE a try since it
brings benefits even for single CPU systems (e.g. better interactive
response).
It would indeed be good to know if ULE improves things for you.
However, there have been a number of other reports about non-scheduler
related regressions with x windows on 7.0. I run 7.0 on a UP laptop
without difficulty. I wonder if it has something to do with a
particular device or driver.
Or xorg 7.3 vs 7.2, if this was an older 6.x install.
Kris
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
