linux-kernel - [PATCHSET 0/5] perf tools: Speed up dwarf callchain post-unwinding for libunwind (v3)

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Date:	Thu,  2 Oct 2014 12:08:50 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	Namhyung Kim <namhyung@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCHSET 0/5] perf tools: Speed up dwarf callchain post-unwinding for libunwind (v3)

Hello,

This is v3 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
symbol_conf.

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-v3' branch on my tree:

  git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git

Thanks,
Namhyung


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        |  6 +++++
 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, 94 insertions(+), 18 deletions(-)

-- 
2.1.0

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