From: Yong Zhang <yong.zhang@windriver.com>
To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org,
a.p.zijlstra@chello.nl, efault@gmx.de, tglx@linutronix.de,
mingo@elte.hu
Cc: linux-tip-commits@vger.kernel.org
Subject: Re: [tip:sched/core] sched: Remove AFFINE_WAKEUPS feature
Date: Fri, 12 Mar 2010 11:23:33 +0800 [thread overview]
Message-ID: <20100312032333.GA13021@windriver.com> (raw)
In-Reply-To: <tip-beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8@git.kernel.org>
On Thu, Mar 11, 2010 at 06:33:38PM +0000, tip-bot for Mike Galbraith wrote:
> Commit-ID: beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8
> Gitweb: http://git.kernel.org/tip/beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8
> Author: Mike Galbraith <efault@gmx.de>
> AuthorDate: Thu, 11 Mar 2010 17:17:20 +0100
> Committer: Ingo Molnar <mingo@elte.hu>
> CommitDate: Thu, 11 Mar 2010 18:32:53 +0100
>
> sched: Remove AFFINE_WAKEUPS feature
>
> Disabling affine wakeups is too horrible to contemplate. Remove the feature flag.
AFFINE_WAKEUPS is still left in sched_feature.h
From: Yong Zhang <yong.zhang@windriver.com>
Date: Fri, 12 Mar 2010 11:14:26 +0800
Subject: [PATCH] sched: clean AFFINE_WAKEUPS feature
complementary work to commit beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8
Signed-off-by: Yong Zhang <yong.zhang@windriver.com>
---
kernel/sched_features.h | 8 --------
1 files changed, 0 insertions(+), 8 deletions(-)
diff --git a/kernel/sched_features.h b/kernel/sched_features.h
index 83c66e8..2137ac0 100644
--- a/kernel/sched_features.h
+++ b/kernel/sched_features.h
@@ -17,14 +17,6 @@ SCHED_FEAT(START_DEBIT, 1)
SCHED_FEAT(WAKEUP_PREEMPT, 1)
/*
- * Based on load and program behaviour, see if it makes sense to place
- * a newly woken task on the same cpu as the task that woke it --
- * improve cache locality. Typically used with SYNC wakeups as
- * generated by pipes and the like, see also SYNC_WAKEUPS.
- */
-SCHED_FEAT(AFFINE_WAKEUPS, 1)
-
-/*
* Prefer to schedule the task we woke last (assuming it failed
* wakeup-preemption), since its likely going to consume data we
* touched, increases cache locality.
--
1.6.3.3
next prev parent reply other threads:[~2010-03-12 3:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-11 9:49 [patch 0/12] sched: fastpath cycle recovery Mike Galbraith
2010-03-11 9:50 ` [patch 1/12] sched: ratelimit nohz Mike Galbraith
2010-03-11 18:30 ` [tip:sched/core] sched: Rate-limit nohz tip-bot for Mike Galbraith
2010-03-11 9:51 ` [patch 2/12] sched: remove avg_wakeup Mike Galbraith
2010-03-11 18:30 ` [tip:sched/core] sched: Remove avg_wakeup tip-bot for Mike Galbraith
2010-03-11 9:52 ` [patch 3/12] sched: remove avg_overlap Mike Galbraith
2010-03-11 18:31 ` [tip:sched/core] sched: Remove avg_overlap tip-bot for Mike Galbraith
2010-03-11 9:53 ` [patch 4/12] sched: cleanup/optimize clock updates Mike Galbraith
2010-03-11 18:31 ` [tip:sched/core] sched: Cleanup/optimize " tip-bot for Mike Galbraith
2010-03-11 9:54 ` [patch 5/12] sched: tweak sched_latency and min_granularity Mike Galbraith
2010-03-11 18:31 ` [tip:sched/core] sched: Tweak " tip-bot for Mike Galbraith
2010-03-11 9:56 ` [patch 6/12] sched: fix select_idle_sibling() Mike Galbraith
2010-03-11 18:32 ` [tip:sched/core] sched: Fix select_idle_sibling() tip-bot for Mike Galbraith
2010-03-11 9:57 ` [patch 7/12] sched: remove NORMALIZED_SLEEPER Mike Galbraith
2010-03-11 18:32 ` [tip:sched/core] sched: Remove NORMALIZED_SLEEPER tip-bot for Mike Galbraith
2010-03-11 9:58 ` [patch 8/12] sched: remove FAIR_SLEEPERS feature Mike Galbraith
2010-03-11 18:32 ` [tip:sched/core] sched: Remove " tip-bot for Mike Galbraith
2010-03-11 9:59 ` [patch 9/12] sched: remove WAKEUP_SYNC feature Mike Galbraith
2010-03-11 18:32 ` [tip:sched/core] sched: Remove " tip-bot for Mike Galbraith
2010-03-11 10:01 ` [patch 11/12] sched: remove ASYM_GRAN feature Mike Galbraith
2010-03-11 18:33 ` [tip:sched/core] sched: Remove " tip-bot for Mike Galbraith
2010-03-11 10:03 ` [patch 10/12] sched: remove SYNC_WAKEUPS feature Mike Galbraith
2010-03-11 18:33 ` [tip:sched/core] sched: Remove " tip-bot for Mike Galbraith
2010-03-11 10:04 ` [patch 12/12] sched: remove AFFINE_WAKEUPS feature Mike Galbraith
2010-03-11 18:33 ` [tip:sched/core] sched: Remove " tip-bot for Mike Galbraith
2010-03-12 3:23 ` Yong Zhang [this message]
2010-03-12 4:37 ` Mike Galbraith
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