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| author |   Gregory Haskins <ghaskins@novell.com> | 2008-01-25 21:08:09 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-01-25 21:08:09 +0100 |
| commit | e7693a362ec84bb5b6fd441d8a8b4b9d568a7a0c (patch) | |
| tree | 078940540641a59aaf199695bfc6de3f062a987b /kernel/rtmutex.c | |
| parent | sched: clean up this_rq use in kernel/sched_rt.c (diff) | |
| download | linux-dev-e7693a362ec84bb5b6fd441d8a8b4b9d568a7a0c.tar.xz linux-dev-e7693a362ec84bb5b6fd441d8a8b4b9d568a7a0c.zip | |
sched: de-SCHED_OTHER-ize the RT path
The current wake-up code path tries to determine if it can optimize the
wake-up to "this_cpu" by computing load calculations. The problem is that
these calculations are only relevant to SCHED_OTHER tasks where load is king.
For RT tasks, priority is king. So the load calculation is completely wasted
bandwidth.
Therefore, we create a new sched_class interface to help with
pre-wakeup routing decisions and move the load calculation as a function
of CFS task's class.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rtmutex.c')
0 files changed, 0 insertions, 0 deletions