Re: [PATCH 6/6] perf record: Always store data mmaps

From	Jiri Olsa <jolsa@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 6/6] perf record: Always store data mmaps
Date	2016-01-05 15:20 +0100
Message-ID	<qNACT-3VY-25@gated-at.bofh.it> (permalink)
References	<qGNlw-4hK-3@gated-at.bofh.it> <qGNlw-4hK-5@gated-at.bofh.it> <qNxOG-1jL-23@gated-at.bofh.it>
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On Tue, Jan 05, 2016 at 08:16:34PM +0900, Namhyung Kim wrote:
> On Thu, Dec 17, 2015 at 09:26:55PM +0100, Jiri Olsa wrote:
> > Currently we don't synthesize data mmap by default. It depends
> > on -d option, that enables data address sampling.
> > 
> > But we've seen cases (softice) where DWARF unwinder went through
> > non executable mmaps, which we need to lookup in MAP__VARIABLE tree.
> > 
> > Given the discussion we had with Arnaldo, where he mentioned
> > he wanted to unify MAP__VARIABLE/MAP__FUNCTION anyway, I'm
> > making data mmaps to be synthesized unconditionally.
> 
> But I'm afraid of increased data size.  Could you check how much is it?

I'll check

jirka
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Re: [PATCH 6/6] perf record: Always store data mmaps Namhyung Kim <namhyung@kernel.org> - 2016-01-05 12:20 +0100
  Re: [PATCH 6/6] perf record: Always store data mmaps Jiri Olsa <jolsa@redhat.com> - 2016-01-05 15:20 +0100

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