linux-kernel - Re: [PATCH] perf tools: fix processing of pid/tid for mmap records

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Message-ID: <20140423154211.GB2230@krava.brq.redhat.com>
Date:	Wed, 23 Apr 2014 17:42:11 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Don Zickus <dzickus@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	Namhyung Kim <namhyung@...nel.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH] perf tools: fix processing of pid/tid for mmap records

On Wed, Apr 23, 2014 at 05:06:21PM +0200, Stephane Eranian wrote:

SNIP

> > That is probably the behaviour we both expect.
> >
> > Jiri's patch takes all mmap events as pid maps and creates an initial map
> > for them.  All future threads that don't have mappings will trying to use
> > their pid's mapping as a fallback option.
> >
> > Because it is all pointer based now, updating the pid mappings
> > automatically update all the thread mappings too.
> >
> > I believe this approach will is the right one and makes sense.  Do you
> > think that works for you?
> >
> I just tried Jiri's 5 patches and my JIT patches, and it does work correctly.
> My Java samples are correctly symbolized. So looks like we have a solution
> that works for both of us though it seems complicated. But I can live with it.
> Thanks Jiri.

can I take this for your Tested-by?

thanks,
jirka
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