Re: [GIT PULL 00/10] perf/core improvements and fixes

[Namhyung Kim <namhyung@kernel.org>]

Hi Arnaldo,

On Mon, Jun 20, 2016 at 07:23:20PM -0300, Arnaldo Carvalho de Melo wrote:
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 02469a95096a549508c5adf61d84a1d72851c85b:
> 
>   Merge tag 'perf-core-for-mingo-20160615' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-06-16 10:27:35 +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-20160620
> 
> for you to fetch changes up to 2a0a7c72702bac1b87cd4d49196a334483386fab:
> 
>   perf script: Add stackcollapse.py script (2016-06-20 17:50:39 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> . Add --dry-run option to 'perf record' to check if command line options can be
>   parsed, but not doing any recording (Wang Nan)
> 
> . Allow dumping the object files generated by llvm when processing eBPF
>   scriptlet events (Wang Nan)
> 
> - Add stackcollapse.py script to help generating flame graphs (Paolo Bonzini)

I think this is already done by '-g folded'.  Please see:

  http://www.brendangregg.com/blog/2016-04-30/linux-perf-folded.html

Thanks,
Namhyung


> 
> Documentation:
> 
> . Fix 'perf script'  documentation of '-f' when it should be '-F' (Adrian Hunter)
> 
> Infrastructure:
> 
> - Fix write_backwards fallback when using a new tool on older kernels
>   without support for this feature (Arnaldo Carvalho de Melo)
> 
> - Find vdso file in cross-platform perf.data file processing scenarios (He Kuang)
> 
> - Remove some leftovers from the initial codebase copying from git
>   (Arnaldo Carvalho de Melo)
> 
> - List libelf-devel as an alternative, as this is how the libelf
>   development package is called on OpenSuSE (Jean Delvare)
> 
> - Rename __hists__add_entry to hists__add_entry (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (1):
>       perf script: Fix documentation of '-f' when it should be '-F'
> 
> Arnaldo Carvalho de Melo (3):
>       perf tools: Remove some unused functions
>       perf tools: Remove --perf-dir and --work-dir
>       perf evsel: Fix write_backwards fallback
> 
> He Kuang (1):
>       perf tools: Find vdso with the consider of cross-platform
> 
> Jean Delvare (1):
>       kbuild: List libelf-devel as an alternative
> 
> Jiri Olsa (1):
>       perf hists: Rename __hists__add_entry to hists__add_entry
> 
> Paolo Bonzini (1):
>       perf script: Add stackcollapse.py script
> 
> Wang Nan (2):
>       perf llvm: Allow dump llvm output object file using llvm.dump-obj
>       perf record: Add --dry-run option to check cmdline options
> 
>  Makefile                                           |   2 +-
>  tools/perf/Documentation/perf-record.txt           |   7 ++
>  tools/perf/Documentation/perf-script.txt           |  20 ++--
>  tools/perf/builtin-annotate.c                      |   2 +-
>  tools/perf/builtin-diff.c                          |  12 +-
>  tools/perf/builtin-record.c                        |   7 ++
>  tools/perf/config/Makefile                         |   2 +-
>  tools/perf/perf.c                                  |  36 ------
>  tools/perf/scripts/python/bin/stackcollapse-record |   8 ++
>  tools/perf/scripts/python/bin/stackcollapse-report |   3 +
>  tools/perf/scripts/python/stackcollapse.py         | 127 +++++++++++++++++++++
>  tools/perf/tests/hists_link.c                      |   4 +-
>  tools/perf/util/cache.h                            |   9 --
>  tools/perf/util/config.c                           |   2 +-
>  tools/perf/util/evsel.c                            |  23 ++--
>  tools/perf/util/hist.c                             |  34 +++---
>  tools/perf/util/hist.h                             |  14 +--
>  tools/perf/util/llvm-utils.c                       |  42 +++++++
>  tools/perf/util/llvm-utils.h                       |   5 +
>  tools/perf/util/path.c                             |  65 +----------
>  tools/perf/util/vdso.c                             |  40 ++++++-
>  21 files changed, 288 insertions(+), 176 deletions(-)
>  create mode 100755 tools/perf/scripts/python/bin/stackcollapse-record
>  create mode 100755 tools/perf/scripts/python/bin/stackcollapse-report
>  create mode 100755 tools/perf/scripts/python/stackcollapse.py