[lkml]   [2008]   [Nov]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28
    From: Ingo Molnar <>
    Date: Mon, 17 Nov 2008 12:01:19 +0100

    > The scheduler's overhead barely even registers on a 16-way x86 system
    > i'm running tbench on. Here's the NMI profile during 64 threads tbench
    > on a 16-way x86 box with an v2.6.28-rc5 kernel [config attached]:

    Try a non-NMI profile.

    It's the whole of the try_to_wake_up() path that's the problem.

     \ /
      Last update: 2008-11-17 20:25    [W:0.018 / U:44.476 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site