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Date: Tue, 11 Nov 2008 11:57:43 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Lin Ming <ming.m.lin@...el.com>, Mike Galbraith <efault@....de>,
"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
"Rafael J. Wysocki" <rjw@...k.pl>,
Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
Miao Xie <miaox@...fujitsu.com>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] sched: release buddies on yield
* Peter Zijlstra <peterz@...radead.org> wrote:
> Clear buddies on yield, so that the buddy rules don't schedule them
> despite them being placed right-most.
>
> This fixed a performance regression with yield-happy binary JVMs.
>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Tested-by: Lin Ming <ming.m.lin@...el.com>
> ---
> kernel/sched_fair.c | 17 ++++++++++++-----
> 1 files changed, 12 insertions(+), 5 deletions(-)
applied to tip/sched/urgent, thanks guys!
Ingo
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