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From: "nakamura.shun@fujitsu.com" <nakamura.shun@fujitsu.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: "peterz@infradead.org" <peterz@infradead.org>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"acme@kernel.org" <acme@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"alexander.shishkin@linux.intel.com" 
	<alexander.shishkin@linux.intel.com>,
	"namhyung@kernel.org" <namhyung@kernel.org>,
	"linux-perf-users@vger.kernel.org"
	<linux-perf-users@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: libperf : Can not create event group
Date: Mon, 28 Jun 2021 08:44:52 +0000	[thread overview]
Message-ID: <OSBPR01MB46001F16CB31046C42947ACBF7039@OSBPR01MB4600.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <YNJQ5P3jgOcL7sMD@krava>

Hi, jirka

> > Do you have any plans to support the event group in libperf?
> 
> hi,
> not until now I guess ;-) what's your use case?

PAPI uses event group to measure multiple events.
libperf uses multiplexing regardless of the user's intent.

I thought it would be nice if users could choose to use multiplexing or event groups.


Best Regards
Shunsuke

jirka

      reply	other threads:[~2021-06-28  8:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-14  7:17 libperf : Can not create event group nakamura.shun
2021-06-14 11:17 ` Jiri Olsa
2021-06-22  7:57   ` nakamura.shun
2021-06-22 21:06     ` Jiri Olsa
2021-06-28  8:44       ` nakamura.shun [this message]

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