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[PATCH 3/3] sched: terminate newidle balancing once at least one task has moved over

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From: Gregory Haskins <ghaskins@...>
To: <mingo@...>, <rostedt@...>, <tglx@...>
Cc: <linux-kernel@...>, <peterz@...>, <linux-rt-users@...>, <ghaskins@...>, <dbahi@...>
Subject: [PATCH 3/3] sched: terminate newidle balancing once at least one task has moved over
Date: Monday, June 23, 2008 - 7:04 pm

Inspired by Peter Zijlstra.

Signed-off-by: Gregory Haskins <ghaskins@novell.com>
---

 kernel/sched.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 3efbbc5..c8e8520 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2775,6 +2775,10 @@ static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest,
 				max_load_move - total_load_moved,
 				sd, idle, all_pinned, &this_best_prio);
 		class = class->next;
+
+		if (idle == CPU_NEWLY_IDLE && this_rq->nr_running)
+			break;
+
 	} while (class && max_load_move > total_load_moved);
 
 	return total_load_moved > 0;

--
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Messages in current thread:
[PATCH 0/3] RT: scheduler newidle enhancements, Gregory Haskins, (Mon Jun 23, 7:04 pm)
Re: [PATCH 0/3] RT: scheduler newidle enhancements, Gregory Haskins, (Mon Jun 23, 9:51 pm)
Re: [PATCH 0/3] RT: scheduler newidle enhancements, Steven Rostedt, (Mon Jun 23, 8:15 pm)
[PATCH 3/3] sched: terminate newidle balancing once at least..., Gregory Haskins, (Mon Jun 23, 7:04 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Peter Zijlstra, (Tue Jun 24, 6:13 am)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Gregory Haskins, (Tue Jun 24, 9:18 am)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Peter Zijlstra, (Tue Jun 24, 9:31 am)
Re: [PATCH 3/3] sched: terminate newidle balancing once atle..., Gregory Haskins, (Tue Jun 24, 12:55 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once atle..., Peter Zijlstra, (Tue Jun 24, 3:44 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Nick Piggin, (Mon Jun 23, 8:50 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Gregory Haskins, (Mon Jun 23, 10:39 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Nick Piggin, (Mon Jun 23, 9:46 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Gregory Haskins, (Mon Jun 23, 10:59 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Steven Rostedt, (Mon Jun 23, 9:07 pm)
Re: [PATCH 3/3] sched: terminate newidle balancing once at l..., Nick Piggin, (Mon Jun 23, 9:26 pm)
[PATCH 2/3] sched: only run newidle if previous task was CFS, Gregory Haskins, (Mon Jun 23, 7:04 pm)
Re: [PATCH 2/3] sched: only run newidle if previous task was..., Peter Zijlstra, (Tue Jun 24, 5:58 am)
Re: [PATCH 2/3] sched: only run newidle if previous task was..., Peter Zijlstra, (Tue Jun 24, 6:38 am)
[PATCH 1/3] sched: enable interrupts and drop rq-lock during..., Gregory Haskins, (Mon Jun 23, 7:04 pm)
Re: [PATCH 1/3] sched: enable interrupts and drop rq-lock du..., Peter Zijlstra, (Tue Jun 24, 6:13 am)
Re: [PATCH 1/3] sched: enable interrupts and drop rq-lock du..., Gregory Haskins, (Tue Jun 24, 9:15 am)
Re: [PATCH 1/3] sched: enable interrupts and drop rq-lock du..., Peter Zijlstra, (Tue Jun 24, 8:24 am)
Re: [PATCH 1/3] sched: enable interrupts and drop rq-lockdur..., Gregory Haskins, (Tue Jun 24, 8:39 am)
Re: [PATCH 1/3] sched: enable interrupts and drop rq-lock du..., Steven Rostedt, (Mon Jun 23, 8:11 pm)