linux-toradex.git/tools/perf/builtin-script.c, branch v4.0-rc1

perf tools: Export usage string and option table of perf record

2014-10-29T12:32:47+00:00

Those are shared with other builtin commands like kvm, script.  So
make it accessable from them.  This is a preparation of later change
that limiting possible options.

Signed-off-by: Namhyung Kim 
Acked-by: Hemant Kumar 
Cc: Alexander Yarygin 
Cc: David Ahern 
Cc: Hemant Kumar 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Masami Hiramatsu 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1413990949-13953-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: A thread's machine can be found via thread->mg->machine

2014-10-29T12:32:46+00:00

So stop passing both machine and thread to several thread methods,
reducing function signature length.

Cc: Adrian Hunter 
Cc: Borislav Petkov 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Frederic Weisbecker 
Cc: Jean Pihet 
Cc: Jiri Olsa 
Cc: Mike Galbraith 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/n/tip-ckcy19dcp1jfkmdihdjcqdn1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf script: Add period as a default output column

2014-10-17T18:22:19+00:00

Adding period as a default output column in script command fo hardware,
software and raw events.

If PERF_SAMPLE_PERIOD sample type is defined in perf.data, following
will be displayed in perf script output:

  $ perf script
              ls  8034 57477.887209:     250000 task-clock:  ffffffff81361d72 memset ([kernel.kallsyms])
              ls  8034 57477.887464:     250000 task-clock:  ffffffff816f6d92 _raw_spin_unlock_irqrestore ([kernel.kallsyms])
              ls  8034 57477.887708:     250000 task-clock:  ffffffff811a94f0 do_munmap ([kernel.kallsyms])
              ls  8034 57477.887959:     250000 task-clock:        34080916c6 get_next_seq (/usr/lib64/libc-2.17.so)
              ls  8034 57477.888208:     250000 task-clock:        3408079230 _IO_doallocbuf (/usr/lib64/libc-2.17.so)
              ls  8034 57477.888717:     250000 task-clock:  ffffffff814242c8 n_tty_write ([kernel.kallsyms])
              ls  8034 57477.889285:     250000 task-clock:        3408076402 fwrite_unlocked (/usr/lib64/libc-2.17.so)

Signed-off-by: Jiri Olsa 
Cc: David Ahern 
Cc: "Jen-Cheng(Tommy) Huang" 
Cc: Andi Kleen 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jen-Cheng(Tommy) Huang 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1408977943-16594-10-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf script: Add period data column

2014-10-17T18:21:30+00:00

Adding period data column to be displayed in perf script.  It's possible
to get period values using -f option, like:

  $ perf script -f comm,tid,time,period,ip,sym,dso
          :26019 26019 52414.329088:       3707  ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
          :26019 26019 52414.329088:         44  ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
          :26019 26019 52414.329093:       1987  ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
          :26019 26019 52414.329093:          6  ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
              ls 26019 52414.329442:     537558        3407c0639c _dl_map_object_from_fd (/usr/lib64/ld-2.17.so)
              ls 26019 52414.329442:       2099        3407c0639c _dl_map_object_from_fd (/usr/lib64/ld-2.17.so)
              ls 26019 52414.330181:    1242100        34080917bb get_next_seq (/usr/lib64/libc-2.17.so)
              ls 26019 52414.330181:       3774        34080917bb get_next_seq (/usr/lib64/libc-2.17.so)
              ls 26019 52414.331427:    1083662  ffffffff810c7dc2 update_curr ([kernel.kallsyms])
              ls 26019 52414.331427:        360  ffffffff810c7dc2 update_curr ([kernel.kallsyms])

Signed-off-by: Jiri Olsa 
Acked-by: David Ahern 
Cc: "Jen-Cheng(Tommy) Huang" 
Cc: Andi Kleen 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jen-Cheng(Tommy) Huang 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1408977943-16594-9-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf script: Stop updating hists stats, not used

2014-10-09T14:46:41+00:00

Not used here, remove to reduce perf_evsel/hists structs interaction.

Cc: Adrian Hunter 
Cc: Borislav Petkov 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Frederic Weisbecker 
Cc: Jean Pihet 
Cc: Jiri Olsa 
Cc: Mike Galbraith 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/n/tip-zzmoo39yalrl9hzu9nc2xqml@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Modify error code for when perf_session__new() fails

2014-09-26T15:32:58+00:00

Because perf_session__new() can fail for more reasons than just ENOMEM,
modify error code(ENOMEM or EINVAL) to -1.

Signed-off-by: Taeung Song 
Acked-by: Jiri Olsa 
Acked-by: Namhyung Kim 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lkml.kernel.org/r/1411522417-9917-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo

perf scripting: Add 'flush' callback to scripting API

2014-08-22T16:12:11+00:00

In order to defer some output via the scripting API, there needs to be a
callback after session processing but before the session is deleted.

Signed-off-by: Adrian Hunter 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1408129739-17368-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf script: Allow callchains if any event samples them

2014-08-13T22:21:53+00:00

perf script was not displaying callchains if any selected event did not
have PERF_SAMPLE_CALLCHAIN.

Change this to disable callchains only if all selected events do not
have PERF_SAMPLE_CALLCHAIN.

Signed-off-by: Adrian Hunter 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1406786474-9306-17-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Check recorded kernel version when finding vmlinux

2014-08-13T19:42:21+00:00

Currently vmlinux_path__init() only tries to find vmlinux file from
current directory, /boot and some canonical directories with version
number of the running kernel.  This can be a problem when reporting old
data recorded on a kernel version not running currently.

We can use --symfs option for this but it's annoying for user to do it
always.  As we already have the info in the perf.data file, it can be
changed to use it for the search automatically.

Before:

  $ perf report
  ...
  # Samples: 4K of event 'cpu-clock'
  # Event count (approx.): 1067250000
  #
  # Overhead  Command     Shared Object      Symbol
  # ........  ..........  .................  ..............................
      71.87%     swapper  [kernel.kallsyms]  [k] recover_probed_instruction

After:

  # Overhead  Command     Shared Object      Symbol
  # ........  ..........  .................  ....................
      71.87%     swapper  [kernel.kallsyms]  [k] native_safe_halt

This requires to change signature of symbol__init() to receive struct
perf_session_env *.

Reported-by: Minchan Kim 
Signed-off-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Masami Hiramatsu 
Cc: Minchan Kim 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1407825645-24586-14-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf script: Move call to symbol__init() after creating session

2014-08-13T19:35:00+00:00

This is a preparation of fixing dso__load_kernel_sym().  It needs a
session info before calling symbol__init().

Signed-off-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Minchan Kim 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1407825645-24586-11-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo