linux-toradex.git/tools/perf/util/sort.h, branch v4.4.7

perf tools: Introduce hpp_dimension__add_output function

2015-10-06T21:04:59+00:00

This function will allow to register output column from ui code and
respect taken sort/output dimensions.

Signed-off-by: Jiri Olsa 
Acked-by: Namhyung Kim 
Cc: David Ahern 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1444134312-29136-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add support for sorting on the iaddr

2015-10-05T19:32:00+00:00

Sorting on 'symbol' gives to broad a resolution as it can cover a range
of IP address.  Use the iaddr instead to get proper sorting on IP
addresses.  Need to use the 'mem_sort' feature of perf record.

New sort option is: symbol_iaddr, header label is 'Code Symbol'.

  $ perf mem report --stdio -F +symbol_iaddr
  # Overhead       Samples  Code Symbol              Local Weight
  # ........  ............  ........................ ............
  #
      54.08%             1  [k] nmi_handle           192
       4.51%             1  [k] finish_task_switch   16
       3.66%             1  [.] malloc               13
       3.10%             1  [.] __strcoll_l          11

Signed-off-by: Don Zickus 
Cc: David Ahern 
Cc: Kan Liang 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1444068369-20978-8-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa 
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Introduce new sort type "socket" for the processor socket

2015-09-14T15:50:30+00:00

This patch enable perf report to sort by processor socket:

  $ perf report --stdio --sort socket,comm,dso,symbol
  # To display the perf.data header info, please use --header/--header-only options.
  #
  # Total Lost Samples: 0
  #
  # Samples: 686  of event 'cycles'
  # Event count (approx.): 349215462
  #
  # Overhead SOCKET Command Shared Object    Symbol
  # ........ ...... ....... ................ ............................
  #
    97.05%    000   test    test             [.] plusB_c
     0.98%    000   test    test             [.] plusA_c
     0.93%    001   perf    [kernel.vmlinux] [k] smp_call_function_single
     0.19%    001   perf    [kernel.vmlinux] [k] page_fault
     0.19%    001   swapper [kernel.vmlinux] [k] pm_qos_request
     0.16%    000   test    [kernel.vmlinux] [k] add_mm_counter_fast

Signed-off-by: Kan Liang 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Adrian Hunter 
Cc: Andi Kleen 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1441377946-44429-2-git-send-email-kan.liang@intel.com
[ Fix col calc, un-allcapsify col header & read the topology when not using perf.data ]
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add processor socket info to hist_entry and addr_location

2015-09-14T15:50:29+00:00

This information will come from perf.data files of from the current
system, cached when needed, such as when the 'socket' sort order gets
introduced.

Signed-off-by: Kan Liang 
Cc: Adrian Hunter 
Cc: Andi Kleen 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Stephane Eranian 
Cc: Wang Nan 
Link: http://lkml.kernel.org/r/1441377946-44429-1-git-send-email-kan.liang@intel.com
[ Don't blindly use env->cpu[al.cpu].socket_id & use machine->env, fixes by Jiri & Arnaldo ]
Signed-off-by: Arnaldo Carvalho de Melo

perf report: Add support for srcfile sort key

2015-08-10T20:20:25+00:00

In some cases it's useful to characterize samples by file. This is
useful to get a higher level categorization, for example to map cost to
subsystems.

Add a srcfile sort key to perf report. It builds on top of the existing
srcline support.

Commiter notes:

E.g.:

  # perf record -F 10000 usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.016 MB perf.data (13 samples) ]
  [root@zoo ~]# perf report -s srcfile --stdio
  # Total Lost Samples: 0
  #
  # Samples: 13  of event 'cycles'
  # Event count (approx.): 869878
  #
  # Overhead  Source File
  # ........  ...........
      60.99%  .
      20.62%  paravirt.h
      14.23%  rmap.c
       4.04%  signal.c
       0.11%  msr.h

  #

The first line is collecting all the files for which srcfiles couldn't somehow
get resolved to:

  # perf report -s srcfile,dso --stdio
  # Total Lost Samples: 0
  #
  # Samples: 13  of event 'cycles'
  # Event count (approx.): 869878
  #
  # Overhead  Source File  Shared Object
  # ........  ...........  ................
      40.97%  .            ld-2.20.so
      20.62%  paravirt.h   [kernel.vmlinux]
      20.02%  .            libc-2.20.so
      14.23%  rmap.c       [kernel.vmlinux]
       4.04%  signal.c     [kernel.vmlinux]
       0.11%  msr.h        [kernel.vmlinux]

  #

XXX: Investigate why that is not resolving on Fedora 21, Andi says he hasn't
     seen this on Fedora 22.

Signed-off-by: Andi Kleen 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lkml.kernel.org/r/1438988064-21834-1-git-send-email-andi@firstfloor.org
[ Added column length update, from 0e65bdb3f90f ('perf hists: Update the column width for the "srcline" sort key') ]
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add support for cycles, weight branch_info field

2015-08-06T19:29:45+00:00

cycles is a new branch_info field available on some CPUs that indicates
the time deltas between branches in the LBR.

Add a sort key and output code for the cycles to allow to display the
basic block cycles individually in perf report.

We also pass in the cycles for weight when LBRs are processed, which
allows to get global and local weight, to get an estimate of the total
cost.

And also print the cycles information for perf report -D.  I also added
printing for the previously missing LBR flags (mispredict etc.)

Signed-off-by: Andi Kleen 
Acked-by: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lkml.kernel.org/r/1437233094-12844-2-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move TUI-specific fields out of map_symbol

2015-05-05T21:13:24+00:00

The has_children and unfolded fields don't belong to the struct
map_symbol since they're used by the TUI only.  Move those fields out of
map_symbol since the struct is also used by other places.

This will also help to compact the sizeof struct hist_entry.

Signed-off-by: Namhyung Kim 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1429687101-4360-11-git-send-email-namhyung@kernel.org
Link: http://lkml.kernel.org/r/1430837746-5439-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move init_have_children field to the unnamed union

2015-05-05T21:13:11+00:00

The init_have_children is used to init callchain info only for TUI.  So
it'd be better to move it to the TUI-specific unnamed union member.

Signed-off-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Cc: David Ahern 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1429687101-4360-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move TUI-specific fields into unnamed union

2015-05-05T21:13:10+00:00

Since perf diff only supports stdio output, TUI fields are only accessed
from perf report (or perf top).  So add a new unnamed union and move
struct hist_entry_tui and those TUI-specific fields.

Signed-off-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Cc: David Ahern 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1429687101-4360-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf diff: Make hist_entry_diff fields union

2015-04-29T13:37:44+00:00

The period_ratio_delta, period_ratio and wdiff are never by used at the
same time.  Instead, Just one of them is accessed according to a
comparison method.  So make it union to reduce memory footprint.

Signed-off-by: Namhyung Kim 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1429416255-12070-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo