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    SubjectRe: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3
    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.

    CPU is Pentium M.

    Using pmtmr for high-res timesource
    dyn-tick: Found suitable timer: pmtmr

    dyn-tick: Maximum ticks to skip limited to 54
    dyn-tick: Timer not enabled during boot

    suitable: 1
    enabled: 1
    using APIC: 0

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      Last update: 2005-08-05 00:28    [W:0.019 / U:3.384 seconds]
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