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From: Vince Weaver <vincent.weaver@maine.edu>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	mingo@elte.hu, Andi Kleen <ak@linux.intel.com>,
	Vince Weaver <vincent.weaver@maine.edu>
Subject: Re: [RFC] perf/core: what is exclude_idle supposed to do
Date: Wed, 18 Apr 2018 11:10:20 -0400 (EDT)	[thread overview]
Message-ID: <alpine.DEB.2.21.1804181109100.1587@macbook-air> (raw)
In-Reply-To: <20180417062010.GA2052@krava>

On Tue, 17 Apr 2018, Jiri Olsa wrote:

> On Mon, Apr 16, 2018 at 10:04:53PM +0000, Stephane Eranian wrote:
> > Hi,
> > 
> > I am trying to understand what the exclude_idle event attribute is supposed
> > to accomplish.
> > As per the definition in the header file:
> > 
> >     exclude_idle   :  1, /* don't count when idle */
> 
> AFAICS it's not implemented

so just to be completely clear hear, we're saying that the "exclude_idle" 
modifier has never done anything useful and still doesn't?

If so I should update the perf_event_open manpage to spell this out.

Vince

  reply	other threads:[~2018-04-18 15:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-16 22:04 Stephane Eranian
2018-04-17  6:20 ` Jiri Olsa
2018-04-18 15:10   ` Vince Weaver [this message]
2018-04-20  8:36     ` Peter Zijlstra
2018-04-20 14:18       ` Vince Weaver
2018-04-20 16:51         ` Vince Weaver
2018-04-20 18:19           ` Stephane Eranian
2018-04-17 13:40 ` Arnaldo Carvalho de Melo
2018-04-20  8:35 ` Peter Zijlstra

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