[lkml]   [2002]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [ltt-dev] Re: [PATCH] LTT for 2.5.38 1/9: Core infrastructure

    On Sun, 22 Sep 2002, bob wrote:

    > [...] On a technical note: a cache-line ping-ponging is bad - a global
    > spinlock is horrendous. They're different - the lock-less MP scheme gets
    > rid of them both.

    (on the contrary - a global spinlock is bad for exactly that reason,
    because it causes a cacheline ping-pong. So if two CPUs are trying to
    write trace events at once, you'll get the same effect as if they were
    using a global spinlock.)


    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:29    [W:0.027 / U:46.812 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site