lkml.org 
[lkml]   [2010]   [Sep]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Serious problem with ticket spinlocks on ia64
    On Thu, Sep 02, 2010 at 00:10 Tony Luck wrote:
    | More results from other experiments ...
    |
    | 1) It occurred to me that I should check that these test cases weren't
    | hitting some other problem in 2.6.36-rc3. So I ported the 64-bit
    | version of ticket locks to the current kernel and ran the stress test.
    | It was still going strong at 16 hours (where all my other experiments
    | tend to fail at 90 minutes or less).

    This is consistent with the bisection that led me to the 4 bytes ticket
    locks commit.

    | Summary: the only change that helps is the 64-bit ticket locks.

    Ditto.

    Cheers,
    Hedi.
    --
    Hedi Berriche
    Global Product Support
    http://www.sgi.com/support


    \
     
     \ /
      Last update: 2010-09-02 02:29    [W:4.206 / U:0.032 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site