From: Matt Fleming <matt@console-pimps.org>
To: Lin Ming <ming.m.lin@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
"Zhang, Rui" <rui.zhang@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
"mingo@elte.hu" <mingo@elte.hu>,
"robert.richter@amd.com" <robert.richter@amd.com>,
"acme@redhat.com" <acme@redhat.com>,
"paulus@samba.org" <paulus@samba.org>,
"dzickus@redhat.com" <dzickus@redhat.com>,
"gorcunov@gmail.com" <gorcunov@gmail.com>,
"fweisbec@gmail.com" <fweisbec@gmail.com>,
"Brown, Len" <lenb@kernel.org>,
Matthew Garrett <mjg59@srcf.ucam.org>
Subject: Re: [RFC PATCH 0/3] perf: show package power consumption in perf
Date: Thu, 19 Aug 2010 08:54:10 +0100 [thread overview]
Message-ID: <20100819075410.GA25755@console-pimps.org> (raw)
In-Reply-To: <1282188497.11858.94.camel@minggr.sh.intel.com>
On Thu, Aug 19, 2010 at 11:28:17AM +0800, Lin Ming wrote:
> On Wed, 2010-08-18 at 20:41 +0800, Matt Fleming wrote:
> >
> > I had a quick look over the patches and Peter is right - the group
> > events stuff would probably fit quite well here. Unfortunately, due to
> > holidays and things, I haven't been able to get them finished
> > yet. I'll get on that ASAP.
>
> Hi, Matt
>
> What's the "group events stuff"?
> Is there some discussion on LKML or elsewhere I can have a look at?
>
> Thanks,
> Lin Ming
The relevant information can be found here in this thread,
http://lkml.org/lkml/2010/8/4/174. I'm working on some patches for
this but they're not finished yet. I can probably get something to
show by next week.
The discussion started because the performance counters on SH do not
generate an interrupt on overflow, so we need to periodically sample
them. Am I correct in thinking that the energy counters also do not
generate an interrupt on overflow and that's why you wrote the event
as a software event?
next prev parent reply other threads:[~2010-08-19 7:54 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-18 7:59 [RFC PATCH 0/3] perf: show package power consumption in perf Zhang Rui
2010-08-18 12:25 ` Peter Zijlstra
2010-08-18 12:41 ` Matt Fleming
2010-08-19 3:28 ` Lin Ming
2010-08-19 7:54 ` Matt Fleming [this message]
2010-08-19 8:15 ` Lin Ming
2010-08-19 8:31 ` Zhang Rui
2010-08-19 8:32 ` Matt Fleming
2010-08-19 9:44 ` Peter Zijlstra
2010-08-21 1:18 ` Frederic Weisbecker
2010-08-21 9:30 ` Ingo Molnar
2010-08-23 9:31 ` Peter Zijlstra
2010-08-19 9:02 ` Peter Zijlstra
2010-08-20 1:44 ` Zhang Rui
2010-08-20 9:34 ` Peter Zijlstra
2010-08-20 12:31 ` Ingo Molnar
2010-08-20 21:34 ` acme
2010-08-19 2:43 ` Lin Ming
2010-08-19 8:54 ` Peter Zijlstra
2010-08-20 0:21 ` Lin Ming
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