Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=db292ca302e83534f5f0f7139e13d7e6976e51f9 Commit: db292ca302e83534f5f0f7139e13d7e6976e51f9 Parent: 77034937dc4575ca0a76bf209838ecd39e804089 Author: Ingo Molnar <[EMAIL PROTECTED]> AuthorDate: Tue Dec 4 17:04:39 2007 +0100 Committer: Ingo Molnar <[EMAIL PROTECTED]> CommitDate: Tue Dec 4 17:04:39 2007 +0100
sched: default to more agressive yield for SCHED_BATCH tasks do more agressive yield for SCHED_BATCH tuned tasks: they are all about throughput anyway. This allows a gentler migration path for any apps that relied on stronger yield. Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]> --- kernel/sched_fair.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 37bb265..c33f0ce 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -799,8 +799,9 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int sleep) */ static void yield_task_fair(struct rq *rq) { - struct cfs_rq *cfs_rq = task_cfs_rq(rq->curr); - struct sched_entity *rightmost, *se = &rq->curr->se; + struct task_struct *curr = rq->curr; + struct cfs_rq *cfs_rq = task_cfs_rq(curr); + struct sched_entity *rightmost, *se = &curr->se; /* * Are we the only task in the tree? @@ -808,7 +809,7 @@ static void yield_task_fair(struct rq *rq) if (unlikely(cfs_rq->nr_running == 1)) return; - if (likely(!sysctl_sched_compat_yield)) { + if (likely(!sysctl_sched_compat_yield) && curr->policy != SCHED_BATCH) { __update_rq_clock(rq); /* * Update run-time statistics of the 'current'. - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html