Ingo Molnar wrote:
i kept the 50%/50% rule from the old scheduler, but maybe it's a more
pristine (and smaller/faster) approach to just not give new children any
stats history to begin with. I've implemented an add-on patch that
implements this, you can find it at:
http://redhat.com/~mingo/cfs-scheduler/sched-fair-fork.patch
I've been running my desktop (single-core Pentium-M w/2GB RAM, Kubuntu Dapper)
with the new CFS for much of this morning now, with the odd switch back to
the stock scheduler for comparison.
Here, CFS really works and feels better than the stock scheduler.
Even with a "make -j2" kernel rebuild happening (no manual renice, either!)
things "just work" about as smoothly as ever. That's something which RSDL
never achieved for me, though I have not retested RSDL beyond v0.34 or so.
Well done, Ingo! I *want* this as my default scheduler.
Things seemed slightly less smooth when I had the CPU hogs
and fair-fork extension patches both applied.
I'm going to try again now with just the fair-fork added on.
Cheers
Mark
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