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Date: Tue, 16 Mar 2010 07:19:13 -0700
From: Arjan van de Ven <arjan@linux.intel.com>
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To: Thomas Renninger <trenn@suse.de>
CC: =?ISO-8859-15?Q?Robert_Sch=F6ne?= <robert.schoene@tu-dresden.de>,
       Dave Jones <davej@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
       Ingo Molnar <mingo@redhat.com>,
       linux-kernel <linux-kernel@vger.kernel.org>,
       cpufreq <cpufreq@vger.kernel.org>, x86@kernel.org
Subject: Re: [PATCH] trace power_frequency events on the correct cpu  (for
 Intel x86 CPUs)
References: <1268399863.3407.15.camel@localhost> <201003151151.05741.trenn@suse.de> <1268723628.3367.16.camel@localhost> <201003161159.24424.trenn@suse.de>
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> But something else...:
> What exactly is the power tracer good for and what is it
> capable of which cpufreq_stats is not capable to do?

look at timechart for example.....
it's extremely useful to have this for us that do power tuning...
cpufreq_stats is nice but not nearly good enough since you only get averages,
not time behavior.