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Date: Fri, 20 May 2016 08:23:03 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Alexei Starovoitov <ast@...nel.org>,
Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
Andi Kleen <ak@...ux.intel.com>,
Brendan Gregg <brendan.d.gregg@...il.com>,
David Ahern <dsahern@...il.com>,
Ekaterina Tumanova <tumanova@...ux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@...il.com>,
He Kuang <hekuang@...wei.com>,
Hemant Kumar <hemant@...ux.vnet.ibm.com>,
Jiri Olsa <jolsa@...hat.com>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Kan Liang <kan.liang@...el.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Masami Hiramatsu <mhiramat@...nel.org>,
Milian Wolff <milian.wolff@...b.com>,
Namhyung Kim <namhyung@...nel.org>,
Pekka Enberg <penberg@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Stephane Eranian <eranian@...gle.com>,
Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
Thomas Gleixner <tglx@...utronix.de>,
Vince Weaver <vincent.weaver@...ne.edu>,
Wang Nan <wangnan0@...wei.com>, Zefan Li <lizefan@...wei.com>
Subject: Re: [GIT PULL 00/12] perf/core improvements and fixes
* Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> From: Arnaldo Carvalho de Melo <acme@...hat.com>
>
> Hi Ingo,
>
> Please consider pulling,
>
> - Arnaldo
>
> The following changes since commit 3f56e687a138481894a1088d5aa7d41951bdb020:
>
> perf/core: Disable the event on a truncated AUX record (2016-05-12 10:14:55 +0200)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160516
>
> for you to fetch changes up to a29d5c9b8167dbc21a7ca8c0302e3799f9063b4e:
>
> perf tools: Separate accounting of contexts and real addresses in a stack trace (2016-05-16 23:11:54 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> User visible:
>
> - Honour the kernel.perf_event_max_stack knob more precisely by not counting
> PERF_CONTEXT_{KERNEL,USER} when deciding when to stop adding entries to
> the perf_sample->ip_callchain[] array (Arnaldo Carvalho de Melo)
>
> - Fix identation of 'stalled-backend-cycles' in 'perf stat' (Namhyung Kim)
>
> - Update runtime using 'cpu-clock' event in 'perf stat' (Namhyung Kim)
>
> - Use 'cpu-clock' for cpu targets in 'perf stat' (Namhyung Kim)
>
> - Avoid fractional digits for integer scales in 'perf stat' (Andi Kleen)
>
> - Store vdso buildid unconditionally, as it appears in callchains and
> we're not checking those when creating the build-id table, so we
> end up not being able to resolve VDSO symbols when doing analysis
> on a different machine than the one where recording was done, possibly
> of a different arch even (arm -> x86_64) (He Kuang)
>
> Infrastructure:
>
> - Generalize max_stack sysctl handler, will be used for configuring
> multiple kernel knobs related to callchains (Arnaldo Carvalho de Melo)
>
> Cleanups:
>
> - Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE, to stop using
> open coded strings (Masami Hiramatsu)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
>
> ----------------------------------------------------------------
> Andi Kleen (1):
> perf stat: Avoid fractional digits for integer scales
>
> Arnaldo Carvalho de Melo (6):
> perf core: Generalize max_stack sysctl handler
> perf core: Pass max stack as a perf_callchain_entry context
> perf core: Add a 'nr' field to perf_event_callchain_context
> perf core: Add perf_callchain_store_context() helper
> perf core: Separate accounting of contexts and real addresses in a stack trace
> perf tools: Separate accounting of contexts and real addresses in a stack trace
>
> He Kuang (1):
> perf symbols: Store vdso buildid unconditionally
>
> Masami Hiramatsu (1):
> perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
>
> Namhyung Kim (3):
> perf stat: Fix indentation of stalled backend cycle
> perf stat: Update runtime using cpu-clock event
> perf stat: Use cpu-clock event for cpu targets
>
> Documentation/sysctl/kernel.txt | 14 ++++++++++++++
> arch/arc/kernel/perf_event.c | 6 +++---
> arch/arm/kernel/perf_callchain.c | 10 +++++-----
> arch/arm64/kernel/perf_callchain.c | 14 +++++++-------
> arch/metag/kernel/perf_callchain.c | 10 +++++-----
> arch/mips/kernel/perf_event.c | 12 ++++++------
> arch/powerpc/perf/callchain.c | 20 ++++++++++----------
> arch/s390/kernel/perf_event.c | 4 ++--
> arch/sh/kernel/perf_callchain.c | 4 ++--
> arch/sparc/kernel/perf_event.c | 14 +++++++-------
> arch/tile/kernel/perf_event.c | 6 +++---
> arch/x86/events/core.c | 14 +++++++-------
> arch/xtensa/kernel/perf_event.c | 10 +++++-----
> include/linux/perf_event.h | 34 +++++++++++++++++++++++++++++-----
> include/uapi/linux/perf_event.h | 1 +
> kernel/bpf/stackmap.c | 3 ++-
> kernel/events/callchain.c | 36 ++++++++++++++++++++++++------------
> kernel/sysctl.c | 11 ++++++++++-
> tools/perf/builtin-buildid-cache.c | 8 ++++----
> tools/perf/builtin-stat.c | 22 +++++++++++++---------
> tools/perf/perf.c | 3 +++
> tools/perf/util/annotate.c | 2 +-
> tools/perf/util/build-id.c | 2 +-
> tools/perf/util/dso.c | 3 ++-
> tools/perf/util/machine.c | 28 ++++++++++++++++++----------
> tools/perf/util/stat-shadow.c | 8 +++++---
> tools/perf/util/symbol.c | 10 +++++-----
> tools/perf/util/symbol.h | 3 +++
> tools/perf/util/util.c | 3 ++-
> tools/perf/util/util.h | 3 ++-
> 30 files changed, 201 insertions(+), 117 deletions(-)
Pulled, thanks a lot Arnaldo!
Ingo
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