Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

Andi Kleen
2007-04-16T21:02:07Z

Ingo Molnar <mingo@elte.hu> writes:

> [announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]
>
> i'm pleased to announce the first release of the "Modular Scheduler Core
> and Completely Fair Scheduler [CFS]" patchset:
>
> http://redhat.com/~mingo/cfs-scheduler/sched-modular+cfs.patch

I would suggest to drop the tsc.c change. The "small errors" can be
really large on some systems and you can also see large backward jumps.
I have a proper (but complicated) solution pending
in ftp://ftp.firstfloor.org/pub/ak/x86_64/quilt/sched-clock-share

BTW with all this CPU time measurement it would be really nice to
report it to the user too. It seems a bit bizarre that the scheduler
keeps track of ns, but top only knows jiffies with large sampling errors.

-Andi