linux-kernel - Re: [PATCH v2] perf data: Fix releasing event

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Message-ID: <20160128194222.GA12456@krava.brq.redhat.com>
Date:	Thu, 28 Jan 2016 20:42:22 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Wang Nan <wangnan0@...wei.com>, jolsa@...nel.org,
	linux-kernel@...r.kernel.org,
	Jérémie Galarneau 
	<jeremie.galarneau@...icios.com>, Zefan Li <lizefan@...wei.com>,
	pi3orama@....com
Subject: Re: [PATCH v2] perf data: Fix releasing event_class

On Thu, Jan 28, 2016 at 05:09:30PM -0200, Arnaldo Carvalho de Melo wrote:

SNIP

> > however even with this patch I can see perf report getting
> > more memory every time it reloads the data.. either there's
> > something else, or I'm looking at it wrong ;-)
> 
> So, for the last delete, IIRC that teardown was removed because it made
> the exit operation to be slower than just not calling
> perf_evlist__delete (or was it perf_session__delete, don't recall right
> now, probably the later, because it would delete all the threads, mmaps,
> etc).
> 
> But yeah, for switching perf.data files on the fly, we better free all
> that up...

ook, I'll check some more and queue it in my next post

jirka