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perf/core improvements and fixes:

Browse source 
User visible:
 
 - Introduce 'srcfile' sort key: (Andi Kleen)
 
   # perf record -F 10000 usleep 1
   # perf report --stdio --dsos '[kernel.vmlinux]' -s srcfile
   <SNIP>
   # Overhead  Source File
       26.49%  copy_page_64.S
        5.49%  signal.c
        0.51%  msr.h
   #
 
   It can be combined with other fields, for instance, experiment with
   '-s srcfile,symbol'.
 
   There are some oddities in some distros and with some specific DSOs, being
   investigated, so your mileage may vary.
 
 - Update the column width for the "srcline" sort key (Arnaldo Carvalho de Melo)
 
 - Support per-event 'freq' term: (Namhyung Kim)
 
   $ perf record -e 'cpu/instructions,freq=1234/',cycles -c 1000 sleep 1
   $ perf evlist -F
   cpu/instructions,freq=1234/: sample_freq=1234
   cycles: sample_period=1000
   $
 
 Infrastructure:
 
 - Move perf_counts struct and functions into separate object (Jiri Olsa)
 
 - Unset perf_event_attr::freq when period term is set (Jiri Olsa)
 
 - Move callchain option parsing code to util.c (Kan Liang)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

  - Introduce 'srcfile' sort key: (Andi Kleen)

    # perf record -F 10000 usleep 1
    # perf report --stdio --dsos '[kernel.vmlinux]' -s srcfile
    <SNIP>
    # Overhead  Source File
        26.49%  copy_page_64.S
         5.49%  signal.c
         0.51%  msr.h
    #

    It can be combined with other fields, for instance, experiment with
    '-s srcfile,symbol'.

    There are some oddities in some distros and with some specific DSOs, being
    investigated, so your mileage may vary.

  - Update the column width for the "srcline" sort key (Arnaldo Carvalho de Melo)

  - Support per-event 'freq' term: (Namhyung Kim)

    $ perf record -e 'cpu/instructions,freq=1234/',cycles -c 1000 sleep 1
    $ perf evlist -F
    cpu/instructions,freq=1234/: sample_freq=1234
    cycles: sample_period=1000
    $

Infrastructure changes:

  - Move perf_counts struct and functions into separate object (Jiri Olsa)

  - Unset perf_event_attr::freq when period term is set (Jiri Olsa)

  - Move callchain option parsing code to util.c (Kan Liang)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-08-12 12:16:11 +02:00
commit 5f1230c9b8
27 changed files with 292 additions and 173 deletions
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