linux-kernel - Re: [patch 02/15] sched: validate CFS quota hierarchies

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Message-ID: <1302010102.2225.1335.camel@twins>
Date:	Tue, 05 Apr 2011 15:28:22 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Paul Turner <pjt@...gle.com>
Cc:	linux-kernel@...r.kernel.org,
	Bharata B Rao <bharata@...ux.vnet.ibm.com>,
	Dhaval Giani <dhaval.giani@...il.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>, Pavel Emelyanov <xemul@...nvz.org>
Subject: Re: [patch 02/15] sched: validate CFS quota hierarchies

On Tue, 2011-03-22 at 20:03 -0700, Paul Turner wrote:

> +/*
> + * Whether a CFS bandwidth hierarchy is required to be consistent, that is:
> + *   sum(child_bandwidth) <= parent_bandwidth
> + */
> +unsigned int sysctl_sched_cfs_bandwidth_consistent = 1;

Why have this configurable?

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