From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: Problems with perf
Date: Tue, 19 Aug 2014 06:09:14 -0700
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In-Reply-To: <20140819080852.GA12435@krava.brq.redhat.com> (Jiri Olsa's
	message of "Tue, 19 Aug 2014 10:08:52 +0200")
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To: Jiri Olsa <jolsa@redhat.com>
Cc: Tommy <tommy24@gatech.edu>, linux-perf-users@vger.kernel.org

Jiri Olsa <jolsa@redhat.com> writes:
> hi,
> we switch off event inheritance for multiple events in group
> with leader sampling. That's probably why you see less samples
> and only one thread. 

If that's the problem then a short term workaround would
be using -a

-Andi