linux-kernel - Re: [RFC PATCH v1 0/3] Scaled statistics using APERF/MPERF in x86

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Message-ID: <20080527071532.7a01608b@infradead.org>
Date:	Tue, 27 May 2008 07:15:32 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	svaidy@...ux.vnet.ibm.com
Cc:	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	venkatesh.pallipadi@...el.com, suresh.b.siddha@...el.com,
	Michael Neuling <mikey@...ling.org>,
	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH v1 0/3] Scaled statistics using APERF/MPERF in x86

On Tue, 27 May 2008 18:49:26 +0530
> At any time we will have both the traditional utilisation value
> relative to current CPU capacity, and scaled utilisation that is
> relative to maximum CPU capacity.
> 

this is where I raise a red flag *because the patch is not doing
that* !!

sadly it gives a random metric which in some circumstances looks like
it does that, but in reality it is not doing that.


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