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    SubjectRe: CFS review
    On Wed, Aug 01, 2007 at 01:22:29PM +0200, Ingo Molnar wrote:
    >
    > * Roman Zippel <zippel@linux-m68k.org> wrote:
    >
    > > [...] e.g. in this example there are three tasks that run only for
    > > about 1ms every 3ms, but they get far more time than should have
    > > gotten fairly:
    > >
    > > 4544 roman 20 0 1796 520 432 S 32.1 0.4 0:21.08 lt
    > > 4545 roman 20 0 1796 344 256 R 32.1 0.3 0:21.07 lt
    > > 4546 roman 20 0 1796 344 256 R 31.7 0.3 0:21.07 lt
    > > 4547 roman 20 0 1532 272 216 R 3.3 0.2 0:01.94 l
    >
    > Mike and me have managed to reproduce similarly looking 'top' output,
    > but it takes some effort: we had to deliberately run a non-TSC
    > sched_clock(), CONFIG_HZ=100, !CONFIG_NO_HZ and !CONFIG_HIGH_RES_TIMERS.

    ..which is pretty much the state of play for lots of non-x86 hardware.

    --
    Mathematics is the supreme nostalgia of our time.
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