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    SubjectRe: [PATCH] x86: Export tsc related information in sysfs
    john stultz wrote:
    > On Tue, 2010-05-25 at 20:16 -0400, Brian Bloniarz wrote:
    >> On 05/24/2010 09:33 PM, Brian Bloniarz wrote:
    >>> So what's wrong with just adding a
    >>> /sys/devices/system/clocksource/clocksource0/tsc_khz?
    >> As an RFC:
    >> Add clocksource.sys_register & sys_unregister so the
    >> current clocksource can add supplemental information to
    >> /sys/devices/system/clocksource/clocksource0/
    >> Export tsc_khz when current_clocksource==tsc so that
    >> daemons like NTP can account for the variability of
    >> calibration results.
    > I think this is a bad idea, as it creates an ABI that is arch AND
    > machine specific, which will cause portability problems in applications
    > that expect the interface to be there.

    It's an arch-independent ABI that returns ENOENT on
    unsupported platforms ;)

    Could you please explain what you envision as an
    arch-independent solution to this problem?
    I guess the tsc_long_calibration=1 alternative is

     \ /
      Last update: 2010-05-26 04:53    [W:0.042 / U:6.520 seconds]
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