From: Gregory Haskins <ghaskins@novell.com>
To: mingo@elte.hu, rostedt@goodmis.org, peterz@infradead.org
Cc: linux-kernel@vger.kernel.org, =linux-rt-users@vger.kernel.org
Subject: [RFC PATCH 0/3] Series short description
Date: Tue, 11 Nov 2008 09:26:13 -0500 [thread overview]
Message-ID: <20081111142323.28477.41235.stgit@dev.haskins.net> (raw)
Hi Ingo, Steven, Peter,
This series applies roughly to mainline as an enhancement to the sched_rt
logic. Peter and I were discussing some of the unecessary overhead in
pull_rt_tasks() via IRC, and this is my RFC attempt to address the problem.
I have built/booted this on a 4-way C2D Xeon box and it passes preempt-test.
Comments, please.
-Greg
---
Gregory Haskins (3):
sched: use highest_prio.next to optimize pull operations
sched: use highest_prio.curr for pull threshold
sched: track the next-highest priority on each runqueue
kernel/sched.c | 8 ++-
kernel/sched_rt.c | 158 +++++++++++++++++++++++++++++++----------------------
2 files changed, 99 insertions(+), 67 deletions(-)
--
Signature
next reply other threads:[~2008-11-11 14:31 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-11 14:26 Gregory Haskins [this message]
2008-11-11 14:26 ` [RFC PATCH 1/3] sched: track the next-highest priority on each runqueue Gregory Haskins
2008-11-11 14:26 ` [RFC PATCH 2/3] sched: use highest_prio.curr for pull threshold Gregory Haskins
2008-11-11 14:26 ` [RFC PATCH 3/3] sched: use highest_prio.next to optimize pull operations Gregory Haskins
2008-11-11 17:56 ` [RFC PATCH 0/3] Series short description Ingo Molnar
2008-11-11 18:51 ` Gregory Haskins
2008-11-11 19:31 ` Chris Friesen
2008-11-11 19:50 ` Gregory Haskins
2008-12-03 20:01 ` Gregory Haskins
2008-12-03 20:30 ` Randy Dunlap
2008-12-03 20:39 ` [RFC PATCH 0/3] sched: track next-highest priority (was "Series short discription") Gregory Haskins
2008-12-03 20:40 ` [RFC PATCH 0/3] Series short description Ingo Molnar
2008-12-03 22:09 ` [PATCH v2 0/4] sched: track next-highest priority Gregory Haskins
2008-12-03 22:09 ` [PATCH v2 1/4] sched: cleanup inc/dec_rt_tasks Gregory Haskins
2008-12-03 22:09 ` [PATCH v2 2/4] sched: track the next-highest priority on each runqueue Gregory Haskins
2008-12-04 4:22 ` Gregory Haskins
2008-12-03 22:09 ` [PATCH v2 3/4] sched: use highest_prio.curr for pull threshold Gregory Haskins
2008-12-03 22:09 ` [PATCH v2 4/4] sched: use highest_prio.next to optimize pull operations Gregory Haskins
2008-12-04 15:43 ` [PATCH v3 0/4] sched: track next-highest priority Gregory Haskins
2008-12-04 15:43 ` [PATCH v3 1/4] sched: cleanup inc/dec_rt_tasks Gregory Haskins
2008-12-04 15:43 ` [PATCH v3 2/4] sched: track the next-highest priority on each runqueue Gregory Haskins
2008-12-04 15:43 ` [PATCH v3 3/4] sched: use highest_prio.curr for pull threshold Gregory Haskins
2008-12-04 15:43 ` [PATCH v3 4/4] sched: use highest_prio.next to optimize pull operations Gregory Haskins
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