lkml.org 
[lkml]   [2010]   [May]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [RFC PATCHSET] sched,perf: unify tracers in sched and move perf on top of TP
    On Wed, May 05, 2010 at 08:16:36PM +0200, Peter Zijlstra wrote:
    > On Wed, 2010-05-05 at 20:15 +0200, Peter Zijlstra wrote:
    > >
    > > Well, I'd much rather just see a direct call in the code than having to
    > > reverse engineer wth hangs onto that _EVENT() junk.
    >
    > And again, I oppose mandating CONFIG_TRACEEVENT.


    And me too. But you don't need CONFIG_EVENT_TRACING for that.
    TRACE_EVENT() with !CONFIG_EVENT_TRACING only produces tracepoints
    if CONFIG_TRACEPOINTS.


    In fact, a first progress that would handle these compromizes would
    be to have CONFIG_PERF_EVENT_SW.

    For now perf_event_task_sched_in and perf_event_task_sched_out can
    stay as is because they are perf core utils.

    But all the rest (faults, migrations, etc..) could be tracepoints builtin
    only if CONFIG_PERF_EVENT_SW.
    Which means CONFIG_PERF_EVENT_SW depends on CONFIG_TRACEPOINTS.

    But nobody is forced to build CONFIG_PERF_EVENT_SW, breakpoints don't need
    it.



    \
     
     \ /
      Last update: 2010-05-05 20:33    [W:0.023 / U:0.076 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site