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

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Message-Id: <201009290005.51644.rjw@sisk.pl>
Date:	Wed, 29 Sep 2010 00:05:51 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Jean Pihet <jean.pihet@...oldbits.com>
Cc:	Thomas Renninger <trenn@...e.de>, Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Len Brown <len.brown@...el.com>, arjan@...radead.org,
	Kevin Hilman <khilman@...prootsystems.com>,
	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	linux-omap@...r.kernel.org, linux-perf-users@...r.kernel.org,
	linux-trace-users@...r.kernel.org
Subject: Re: [PATCH] tracing, perf: add more power related events

On Tuesday, September 28, 2010, Jean Pihet wrote:
> Hi,
> 
> On Tue, Sep 28, 2010 at 11:22 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> > On Tuesday, September 28, 2010, Jean Pihet wrote:
> >> Hi,
> >
> > 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).
> 
> Since suspend is tied to the power management of the system, is it ok
> to rename it to e.g. power:system_suspend?

I think so.

Thanks,
Rafael
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