From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jean Pihet <jean.pihet@newoldbits.com>,
Thomas Renninger <trenn@suse.de>, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Len Brown <len.brown@intel.com>,
arjan@infradead.org, Kevin Hilman <khilman@deeprootsystems.com>,
linux-kernel@vger.kernel.org, discuss@lesswatts.org,
linux-pm@lists.linux-foundation.org, linux-omap@vger.kernel.org,
linux-perf-users@vger.kernel.org,
linux-trace-users@vger.kernel.org
Subject: Re: [PATCH] tracing, perf: add more power related events
Date: Wed, 22 Sep 2010 20:09:01 +0200 [thread overview]
Message-ID: <201009222009.02011.rjw@sisk.pl> (raw)
In-Reply-To: <4C9A21AD.1000800@linux.intel.com>
On Wednesday, September 22, 2010, Arjan van de Ven wrote:
> On 9/22/2010 8:31 AM, Jean Pihet wrote:
> > Hi,
> >
> > Here is a patch that redefines the power events API. The advantages
> > are: easier maintainance of the kernel and the
> > user space tools, a cleaner and more generic interface, more
> > parameters for fine tracing and even documentation!
> >
> > Thomas, this patch has your patch above merged in ('power-trace: Use
> > power_switch_state instead of power_start and power_end'). The revised
> > ACPI patch is coming asap.
> >
> > The trace points for x86 and OMAP are also udated accordingly.
> >
> > The pytimechart tool needs an update for the new API. This can be done
> > as soon as the kernel code gets merged in.
>
> unfortunately this code is changing a userspace ABI... we really
> shouldn't do that if we can avoid it,
> and here we can avoid it.
>
> applications ARE using this stuff!
Apart from this, could we rename things like POWER_CSTATE to CPU_POWER_CSTATE
and state clearly in the docs that this whole thing is about CPU power?
Thanks,
Rafael
next prev parent reply other threads:[~2010-09-22 18:09 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-07 7:21 [PATCH] tracing, perf: add more power related events Jean Pihet
2010-09-07 7:21 ` Jean Pihet
2010-09-07 8:01 ` Jean Pihet
2010-09-07 8:01 ` Jean Pihet
2010-09-07 8:01 ` Jean Pihet
2010-09-08 6:53 ` Ingo Molnar
2010-09-08 6:53 ` Ingo Molnar
2010-09-09 7:15 ` Jean Pihet
2010-09-09 7:54 ` Ingo Molnar
2010-09-09 7:54 ` Ingo Molnar
2010-09-15 15:45 ` Jean Pihet
2010-09-15 15:45 ` Jean Pihet
2010-09-15 15:45 ` Jean Pihet
2010-09-17 13:08 ` Thomas Renninger
2010-09-17 14:05 ` Jean Pihet
2010-09-17 14:24 ` Ingo Molnar
2010-09-17 15:36 ` Thomas Renninger
2010-09-17 16:24 ` Ingo Molnar
2010-09-17 16:24 ` Ingo Molnar
2010-09-17 22:26 ` Thomas Renninger
2010-09-22 15:31 ` Jean Pihet
2010-09-22 15:31 ` Jean Pihet
2010-09-22 15:31 ` Jean Pihet
2010-09-22 15:33 ` Arjan van de Ven
2010-09-22 15:36 ` Jean Pihet
2010-09-22 15:36 ` Jean Pihet
2010-09-22 16:32 ` Arjan van de Ven
2010-09-22 16:43 ` Peter Zijlstra
2010-09-22 16:43 ` Peter Zijlstra
2010-09-22 17:06 ` Arjan van de Ven
2010-09-22 17:06 ` Arjan van de Ven
2010-09-22 17:30 ` Peter Zijlstra
2010-09-22 18:15 ` Steven Rostedt
2010-09-22 18:23 ` Ingo Molnar
2010-09-22 18:30 ` Peter Zijlstra
2010-09-22 18:30 ` Peter Zijlstra
2010-09-22 18:23 ` Ingo Molnar
2010-09-22 18:26 ` Peter Zijlstra
2010-09-22 18:26 ` Peter Zijlstra
2010-09-22 18:36 ` Steven Rostedt
2010-09-22 18:36 ` Steven Rostedt
2010-09-22 18:43 ` Peter Zijlstra
2010-09-22 18:43 ` Peter Zijlstra
2010-09-22 19:14 ` Frank Ch. Eigler
2010-09-22 19:14 ` Frank Ch. Eigler
2010-09-22 18:15 ` Steven Rostedt
2010-09-22 17:30 ` Peter Zijlstra
2010-09-22 17:36 ` Thomas Renninger
2010-09-22 17:36 ` Thomas Renninger
2010-09-22 16:47 ` Peter Zijlstra
2010-09-22 16:47 ` Peter Zijlstra
2010-09-22 16:32 ` Arjan van de Ven
2010-09-22 15:36 ` Jean Pihet
2010-09-22 17:57 ` Thomas Renninger
2010-09-22 17:57 ` Thomas Renninger
2010-09-22 18:13 ` Arjan van de Ven
2010-09-22 18:34 ` Thomas Renninger
2010-09-22 18:34 ` Thomas Renninger
2010-09-22 18:13 ` Arjan van de Ven
2010-09-22 18:09 ` Rafael J. Wysocki [this message]
2010-09-22 18:09 ` Rafael J. Wysocki
2010-09-22 15:33 ` Arjan van de Ven
2010-09-22 18:49 ` Rafael J. Wysocki
2010-09-22 18:49 ` Rafael J. Wysocki
2010-09-28 8:35 ` Jean Pihet
2010-09-28 8:35 ` Jean Pihet
2010-09-28 21:22 ` Rafael J. Wysocki
2010-09-28 21:22 ` Rafael J. Wysocki
2010-09-28 21:43 ` Jean Pihet
2010-09-28 21:43 ` Jean Pihet
2010-09-28 22:05 ` Rafael J. Wysocki
2010-09-28 22:05 ` Rafael J. Wysocki
2010-09-28 21:43 ` Jean Pihet
2010-09-28 21:45 ` Arjan van de Ven
2010-09-28 22:05 ` Rafael J. Wysocki
2010-09-28 22:05 ` Rafael J. Wysocki
2010-09-29 7:49 ` Thomas Renninger
2010-09-29 7:49 ` Thomas Renninger
2010-09-29 9:25 ` Jean Pihet
2010-09-29 9:25 ` Jean Pihet
2010-09-29 9:25 ` Jean Pihet
2010-10-04 17:55 ` Pavel Machek
2010-10-04 17:55 ` [linux-pm] " Pavel Machek
2010-09-28 21:45 ` Arjan van de Ven
2010-09-28 8:35 ` Jean Pihet
2010-09-17 22:26 ` Thomas Renninger
2010-09-17 15:36 ` Thomas Renninger
2010-09-17 14:24 ` Ingo Molnar
2010-09-17 15:29 ` Thomas Renninger
2010-09-17 15:29 ` Thomas Renninger
2010-09-17 21:58 ` Thomas Renninger
2010-09-17 21:58 ` Thomas Renninger
2010-09-17 22:04 ` Thomas Renninger
2010-09-17 22:04 ` Thomas Renninger
2010-09-17 22:10 ` Thomas Renninger
2010-09-17 22:10 ` Thomas Renninger
2010-09-17 22:17 ` Thomas Renninger
2010-09-17 22:17 ` Thomas Renninger
2010-09-17 14:05 ` Jean Pihet
2010-09-17 13:08 ` Thomas Renninger
2010-09-09 7:15 ` Jean Pihet
2010-09-17 8:28 ` [tip:perf/core] tracing, perf: Add " tip-bot for Jean Pihet
-- strict thread matches above, loose matches on Subject: below --
2010-09-07 7:21 [PATCH] tracing, perf: add " Jean Pihet
2010-08-16 11:09 Jean Pihet
2010-08-16 11:15 ` Peter Zijlstra
2010-08-16 11:25 ` Jean Pihet
2010-08-23 10:25 ` Jean Pihet
2010-09-03 17:00 ` Jean Pihet
2010-09-03 18:05 ` Thomas Renninger
2010-09-03 19:55 ` Ingo Molnar
2010-09-03 20:10 ` Thomas Renninger
2010-09-03 20:28 ` Ingo Molnar
2010-09-03 22:56 ` Arjan van de Ven
2010-09-04 8:18 ` Ingo Molnar
2010-09-06 8:56 ` Jean Pihet
2010-09-06 10:42 ` Thomas Renninger
2010-09-06 10:42 ` Thomas Renninger
2010-09-06 11:27 ` Jean Pihet
2010-09-06 12:00 ` Thomas Renninger
2010-09-06 12:00 ` Thomas Renninger
2010-09-07 7:28 ` Jean Pihet
2010-09-07 7:28 ` Jean Pihet
2010-09-06 11:27 ` Jean Pihet
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