[lkml]   [2008]   [Oct]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] Re: x86_32 tsc/pit and hrtimers
    On Wed, 8 Oct 2008, Jeff Hansen wrote:

    > [HRTIMER]: Add highres=noverify option to bypass clocksource verification
    > This disregards the CLOCK_SOURCE_MUST_VERIFY flag on all clocksources.
    > This is particularly useful on legacy x86_32 systems that have no ACPI,
    > LAPIC, or HPET timers, where only TSC and PIT are available.

    While I agree in principle, adding this to highres is the wrong thing
    to do. This is a property of clocksources and not of high resolution
    timer support.

    The affected clocksource is TSC and it should go there as a command
    line option e.g. tsc=stable, which in turn clears the
    CLOCK_SOURCE_MUST_VERIFY flag in the tsc clocksource.



     \ /
      Last update: 2008-10-09 09:17    [W:0.018 / U:3.944 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site