linux-kernel - [PATCH 0/2] perf: Improve user regs sampling

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Date:	Sun,  4 Jan 2015 10:36:18 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	秦承刚(承刚) 
	<chenggang.qcg@...baba-inc.com>
Cc:	Andy Lutomirski <luto@...capital.net>,
	Stephane Eranian <eranian@...gle.com>,
	root <chenggang.qin@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	秦承刚(承刚) <chenggang.qcg@...bao.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Namhyung Kim <namhyung@...il.com>,
	Mike Galbraith <efault@....de>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Yanmin Zhang <yanmin.zhang@...el.com>
Subject: [PATCH 0/2] perf: Improve user regs sampling

This seems to improve the situation on x86_64 from almost entirely
broken to mostly working.  Tested with:

perf record -e cycles --call-graph=dwarf ls

Andy Lutomirski (2):
  perf: Move task_pt_regs sampling into arch code
  x86_64, perf: Improve user regs sampling

 arch/arm/kernel/perf_regs.c   |  8 ++++
 arch/arm64/kernel/perf_regs.c |  8 ++++
 arch/x86/kernel/perf_regs.c   | 90 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/perf_event.h    | 12 +++---
 include/linux/perf_regs.h     | 16 ++++++++
 kernel/events/core.c          | 19 ++++-----
 6 files changed, 137 insertions(+), 16 deletions(-)

-- 
2.1.0

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