Re: [GIT PULL 00/12] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:

> From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> 
> 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@xxxxxxxxxx>
> 
> ----------------------------------------------------------------
> 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