diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-05-29 11:28:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-05-29 11:28:57 +0200 |
| commit | 6363ca57c76b7b83639ca8c83fc285fa26a7880e (patch) | |
| tree | b8630b4af286409efdd648920a546fae24d4db88 /kernel/sched_rt.c | |
| parent | 4285f594f84d1f0641fc962d00e6638dec4a19c4 (diff) | |
| download | linux-6363ca57c76b7b83639ca8c83fc285fa26a7880e.tar.gz linux-6363ca57c76b7b83639ca8c83fc285fa26a7880e.tar.bz2 linux-6363ca57c76b7b83639ca8c83fc285fa26a7880e.zip | |
revert ("sched: fair-group: SMP-nice for group scheduling")
Yanmin Zhang reported:
Comparing with 2.6.25, volanoMark has big regression with kernel 2.6.26-rc1.
It's about 50% on my 8-core stoakley, 16-core tigerton, and Itanium Montecito.
With bisect, I located the following patch:
| 18d95a2832c1392a2d63227a7a6d433cb9f2037e is first bad commit
| commit 18d95a2832c1392a2d63227a7a6d433cb9f2037e
| Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
| Date: Sat Apr 19 19:45:00 2008 +0200
|
| sched: fair-group: SMP-nice for group scheduling
Revert it so that we get v2.6.25 behavior.
Bisected-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_rt.c')
| -rw-r--r-- | kernel/sched_rt.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 060e87b0cb1c..3432d573205d 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -513,8 +513,6 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup) */ for_each_sched_rt_entity(rt_se) enqueue_rt_entity(rt_se); - - inc_cpu_load(rq, p->se.load.weight); } static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) @@ -534,8 +532,6 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) if (rt_rq && rt_rq->rt_nr_running) enqueue_rt_entity(rt_se); } - - dec_cpu_load(rq, p->se.load.weight); } /* |