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

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Message-ID: <20101004175536.GD1518@ucw.cz>
Date:	Mon, 4 Oct 2010 19:55:36 +0200
From:	Pavel Machek <pavel@....cz>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <len.brown@...el.com>,
	linux-trace-users@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Jean Pihet <jean.pihet@...oldbits.com>,
	linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org, Ingo Molnar <mingo@...e.hu>,
	linux-omap@...r.kernel.org, arjan@...radead.org
Subject: Re: [linux-pm] [PATCH] tracing, perf: add more power related events

Hi!

> >> Here is what I am proposing, in reply to all your comments:
> >>
> >> 1) rename the events to match Thomas's proposal:
> >>     power:power_cpu_cstate
> >>     power:power_cpu_pstate
> >>     power:power_cpu_sstate
> > If that sstate thing is going to mean "suspend", then please drop it.
> > "Suspend" is not a state, let alone a CPU state.  It is a procedure by which
> > the (entire) system is put into a sleep state (that is not confined to CPUs).
> 
> there are also non-suspend S states, like S0i1 and S0i3 (supported in 
> the current Intel "Moorestown" platform)

Where can one learn more?
								Pavel


-- 
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