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

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit fe7a2eaa71c55aadbf95d01d32df8dccc0db0646:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-16 08:45:56 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to cb110f471025f3278978aaccb18f3164ea2b8189:

  perf stat: Move noise/running printing into printout (2016-02-16 17:13:02 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Make 'perf record' collect CPU cache info in the perf.data file header:

  $ perf record usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.017 MB perf.data (7 samples) ]
  $ perf report --header-only -I | tail -10 | head -8
  # CPU cache info:
  #  L1 Data                 32K [0-1]
  #  L1 Instruction          32K [0-1]
  #  L1 Data                 32K [2-3]
  #  L1 Instruction          32K [2-3]
  #  L2 Unified             256K [0-1]
  #  L2 Unified             256K [2-3]
  #  L3 Unified            4096K [0-3]
  $

  Will be used in 'perf c2c' and eventually in 'perf diff' to allow, for instance
  running the same workload in multiple machines and then when using 'diff' show
  the hardware difference. (Jiri Olsa)

- 'perf stat' now shows shadow metrics (insn per cycle, etc) in
  interval mode too. E.g:

    # perf stat -I 1000 -e instructions,cycles sleep 1
    #         time   counts unit events
       1.000215928  519,620      instructions     #  0.69 insn per cycle
       1.000215928  752,003      cycles
    <SNIP>

Infrastructure:

- libapi now can also use pr_{warning,info,debug}() and that can be
  set by tools using it (Jiri Olsa)

- libapi adopts filename__read_str() from perf, adds sysfs__read_str() (Jiri Olsa)

- Add check for java alternatives cmd in jvmti Makefile, so that it manages
  to automatically find the right path for the JDK devel files in Ubuntu like
  systems in addition to Fedora like ones (Stephane Eranian)

Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

----------------------------------------------------------------
Andi Kleen (3):
      perf stat: Abstract stat metrics printing
      perf stat: Add support for metrics in interval mode
      perf stat: Move noise/running printing into printout

Arnaldo Carvalho de Melo (1):
      perf debug: Rename __eprintf(va_list args) to veprintf

Jiri Olsa (5):
      tools lib api: Add debug output support
      tools lib api fs: Adopt filename__read_str from perf
      tools lib api fs: Add sysfs__read_str function
      perf tools: Initialize libapi debug output
      perf tools: Add perf data cache feature

Stephane Eranian (1):
      perf jvmti: Add check for java alternatives cmd in Makefile

 tools/lib/api/Build            |   1 +
 tools/lib/api/Makefile         |   1 +
 tools/lib/api/debug-internal.h |  20 +++
 tools/lib/api/debug.c          |  28 +++++
 tools/lib/api/debug.h          |  10 ++
 tools/lib/api/fs/fs.c          |  64 ++++++++++
 tools/lib/api/fs/fs.h          |   3 +
 tools/perf/builtin-stat.c      | 202 +++++++++++++++---------------
 tools/perf/jvmti/Makefile      |   6 +-
 tools/perf/perf.c              |   2 +
 tools/perf/util/debug.c        |  36 ++++--
 tools/perf/util/debug.h        |   1 +
 tools/perf/util/env.c          |  13 ++
 tools/perf/util/env.h          |  15 +++
 tools/perf/util/header.c       | 270 +++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/header.h       |   1 +
 tools/perf/util/stat-shadow.c  | 211 +++++++++++++++++---------------
 tools/perf/util/stat.h         |  15 ++-
 tools/perf/util/trace-event.c  |   1 +
 tools/perf/util/util.c         |  48 --------
 tools/perf/util/util.h         |   1 -
 21 files changed, 694 insertions(+), 255 deletions(-)
 create mode 100644 tools/lib/api/debug-internal.h
 create mode 100644 tools/lib/api/debug.c
 create mode 100644 tools/lib/api/debug.h