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    SubjectRe: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3
    On Fri, 5 Aug 2005 08:12 am, Marc Ballarin wrote:
    > On Wed, 3 Aug 2005 15:59:24 +1000
    > Con Kolivas <> wrote:
    > > This is the dynamic ticks patch for i386 as written by Tony Lindgen
    > > <> and Tuukka Tikkanen <>.
    > > Patch for 2.6.13-rc5
    > One issue (tested the -rc4 Version on -mm):
    > - on interrupt flood (ping -f) HZ goes down to 0-4 HZ.
    > This matches "ticks to skip" below. Coincidence?
    > - ping -f complains:
    > .Warning: time of day goes back (-304us), taking countermeasures.
    > ...
    > .Warning: time of day goes back (-33us), taking countermeasures.
    > Yet, system time _seems_ to be kept correctly.

    Interesting... It almost seems like if you throw enough interrupts at it the
    next_timer_interrupt function gets confused. I wonder if S390 and ARM are
    seeing this at all since (it seems to me) they use that function?

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      Last update: 2005-08-05 02:39    [W:0.020 / U:3.116 seconds]
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