[lkml]   [2011]   [Feb]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Performance/resume issues on Toshiba NB305
    On Fri, Feb 25, 2011 at 10:47:16PM +0100, Thomas Gleixner wrote:
    > Let's wait for the intel and acpi folks. It would be interesting what
    > the new intel toy says to your BIOS.

    Not much because it doesn't know about my processor. About all I could
    get out of it is that my MSRs are inconsistent, SMI latency is bad, and
    the round-trip latency via MWAIT test gives elapsed time = 285ms with
    229 iterations/ms.

    > > Then there must be a bug. When I cleared CLOCK_EVT_FEAT_ONESHOT for the
    > > HPET without this change the HPET got put into oneshot mode. The local
    > > tick device is checked before switching to nohz, but not the broadcast
    > > device. This change was just a quick hack to get around that and test my
    > > theory.
    > Indeed. The patch below should cure that.

    It works. I was wondering whether or not I should put the broadcast
    device in periodic mode with the local ones in nohz; I guess your patch
    answers my question.

    > Thanks,
    > tglx
    > ----------->
    > Subject: clockevents-fix-broadcast.patch
    > From: Thomas Gleixner <>
    > Date: Fri, 25 Feb 2011 22:34:23 +0100
    > Signed-off-by: Thomas Gleixner <>

    Tested-by: Seth Forshee <>

     \ /
      Last update: 2011-02-25 23:31    [W:0.075 / U:2.132 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site