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

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Message-ID: <AANLkTinaBJqY0UaMnwJa0nfeNYDm2Dw2t_pBsoGsraHL@mail.gmail.com>
Date:	Mon, 23 Aug 2010 12:25:16 +0200
From:	Jean Pihet <jean.pihet@...oldbits.com>
To:	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Renninger <trenn@...e.de>,
	Len Brown <len.brown@...el.com>,
	Arjan Van De Ven <arjan@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org,
	Kevin Hilman <khilman@...prootsystems.com>
Subject: Re: [PATCH] tracing, perf: add more power related events

Hi,

On Mon, Aug 16, 2010 at 1:25 PM, Jean Pihet <jean.pihet@...oldbits.com> wrote:
> On Mon, Aug 16, 2010 at 1:15 PM, Peter Zijlstra <peterz@...radead.org> wrote:
>> 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..
> Ok, let's discuss it! The intention is to provide new generic events.
>
>>
>> CC'ed people who know more on the subject.
Any news on the topic? Any feedback on the code or on the new events
definition is welcome.

>>
Thanks!
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