linux-kernel - Re: balance storm

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Message-ID: <1401112989.23186.28.camel@marge.simpson.net>
Date:	Mon, 26 May 2014 16:03:09 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Libo Chen <libo.chen@...wei.com>
Cc:	tglx@...utronix.de, mingo@...e.hu,
	LKML <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	Li Zefan <lizefan@...wei.com>, peterz@...radead.org
Subject: Re: balance storm

On Mon, 2014-05-26 at 19:49 +0800, Libo Chen wrote:

> how to turn off SD_SHARE_PKG_RESOURCES in userspace ?

I use a script Ingo gave me years and years ago to
twiddle /proc/sys/kernel/sched_domain/cpuN/domainN/flags domain wise.
Doing that won't do you any good without a handler to build/tear down
sd_llc when you poke at flags though.  You can easily add a sched
feature to play with it.

-Mike

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