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Date:	Thu, 20 Mar 2014 09:33:33 +0100
From:	Jiri Olsa <>
Cc:	Don Zickus <>,
	Corey Ashford <>,
	David Ahern <>,
	Frederic Weisbecker <>,
	Ingo Molnar <>,
	Namhyung Kim <>,
	Paul Mackerras <>,
	Peter Zijlstra <>,
	Arnaldo Carvalho de Melo <>
Subject: Re: [PATCH 0/6] perf tools: Share map groups within process

On Tue, Mar 18, 2014 at 03:46:50PM +0100, Jiri Olsa wrote:
> hi,
> this patchset moves thread's map_groups to be dynamically
> allocated and shared within process threads.
> The main benefit would be to be able to look up memory
> map from any thread that belongs to the process.
> This implements one of the solution ideas for issue
> described by Don in following thread:
> RFC changes:
>   - added automated test for thread map groups get/put methods
>   - fix reference count for case described by Namhyung
>   - rename the mmap-events.c test to mmap-thread-lookup.c
>   - added PROT_EXEC to mmap call in tests/mmap-thread-lookup.c
>     as it's not implied by default on all archs (Namhyung)
>   - lazy mg allocation in thread__find_addr_map (Namhyung)
>   - fix compilation failures (Arnaldo)
> also available in here:
>   git://
>   perf/core_mmaps

I rebased this to your latest perf/core

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