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Date:	Mon,  6 Oct 2014 09:45:58 +0900
From:	Namhyung Kim <>
To:	Arnaldo Carvalho de Melo <>
Cc:	Peter Zijlstra <>,
	Ingo Molnar <>,
	Paul Mackerras <>,
	Namhyung Kim <>,
	Namhyung Kim <>,
	LKML <>,
	Jiri Olsa <>, David Ahern <>,
	Frederic Weisbecker <>
Subject: [PATCHSET 0/5] perf tools: Speed up dwarf callchain post-unwinding for libunwind (v4)


This is v4 for libunwind callchain post processing speed up.  It was
able to reduce 50% of processing time by using global cache provided
in libunwind.  In this version, I decided to use the existing
callchain_param.record_mode instead of adding a new field in the

The patch 4 and 5 are just cleanups so that we can easily find out
that which part of code uses the thread->priv.

You can also get it from 'perf/callchain-unwind-v4' branch on my tree:



Namhyung Kim (5):
  perf report: Set callchain_param.record_mode for future use
  perf callchain: Create an address space per thread
  perf callchain: Use global caching provided by libunwind
  perf kvm: Use thread_{,_set}_priv helpers
  perf trace: Use thread_{,_set}_priv helpers

 tools/perf/builtin-kvm.c           |  6 ++---
 tools/perf/builtin-report.c        |  7 ++++++
 tools/perf/builtin-trace.c         | 16 ++++++-------
 tools/perf/tests/dwarf-unwind.c    |  3 +++
 tools/perf/util/callchain.h        |  2 ++
 tools/perf/util/hist.h             |  2 --
 tools/perf/util/thread.c           |  9 +++++++
 tools/perf/util/unwind-libunwind.c | 48 ++++++++++++++++++++++++++++++++++----
 tools/perf/util/unwind.h           | 20 ++++++++++++++++
 9 files changed, 95 insertions(+), 18 deletions(-)


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