linux-kernel - Re: [PATCH] tracing, perf: add more power related events

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Message-ID: <1281957336.1926.1230.camel@laptop>
Date:	Mon, 16 Aug 2010 13:15:36 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jean Pihet <jean.pihet@...oldbits.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Thomas Renninger <trenn@...e.de>,
	Kevin Hilman <khilman@...prootsystems.com>,
	Len Brown <len.brown@...el.com>,
	Arjan Van De Ven <arjan@...ux.intel.com>
Subject: Re: [PATCH] tracing, perf: add more power related events

On Mon, 2010-08-16 at 13:09 +0200, Jean Pihet wrote:
> This patch adds new generic events for dynamic power management
> tracing:
> - clock events class: used for clock enable/disable and for
>    clock rate change,
> - power_domain events class: used for power domains transitions.
> 
> The OMAP architecture is using the new events for PM debugging, however
> the new events are made generic enough to be used by all platforms.

Even though I'm blissfully ignorant on power stuffs, the proposed set of
trace thingies doesn't appear to even start covering x86..

CC'ed people who know more on the subject.
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