linux-toradex.git/tools/perf/builtin-c2c.c, branch v4.11-rc3

perf c2c report: Coalesce by default only by pid,iaddr

2017-01-20T19:52:56+00:00

It seems to be the most used argument for -c option so far.  In the
beginning when you want to have the overall process report, so it makes
sense to make it the default one.

Signed-off-by: Jiri Olsa 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1484904032-11040-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c report: Display Total records column in offset view

2017-01-20T19:52:43+00:00

Adding "Total records" column into cacheline pareto table, between
cycles and cpu info.

  $ perf c2c report
  ...

  ---    ---------- cycles ----------    Total       cpu
         rmt hitm  lcl hitm      load  records       cnt
  ...    ........  ........  ........  .......  ........

                0       112        71       34         4
                0         0         0       18         1
                0         0         0        2         1
                0       132         0        3         3

  ...

It's useful to see how many recorded samples represent each offset.

Signed-off-by: Jiri Olsa 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1484904032-11040-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove some needless __maybe_unused

2016-12-15T19:25:45+00:00

I.e. those parameters/functions _are_ used, so ditch that misleading attribute.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-13cqtjh0yojg5gzvpq1zzpl0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c: Support cascading options

2016-11-23T13:44:06+00:00

Adding support for cascading options added by Namhyung in:

  commit 369a2478973a ("tools lib subcmd: Support cascading options")

This way the report and record command share options with with c2c
command and can save some option duplicates. For now it's the 'v'
option.

Signed-off-by: Jiri Olsa 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1479764011-10732-7-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c report: Display total HITMs on default

2016-11-23T13:44:05+00:00

Currently we display the cacheline list sorted on remote HITMs by
default.

The problem is that they might not be always counted and 'perf c2c
report' displays an empty output. Thus it's more convenient to display
and sort the cacheline list based on the total of HITMs and have the
best change to see data in the default report run.

Signed-off-by: Jiri Olsa 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1479764011-10732-6-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c report: Add -f/--force option

2016-11-23T13:44:04+00:00

Adding -f/--force option to go through ownership validation:

  $ sudo perf c2c report
  File perf.data not owned by current user or root (use -f to override)
  $
  $ sudo perf c2c report -f
  < c2c report output >
  $

Signed-off-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1479764011-10732-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c report: Setup browser after opening perf.data

2016-11-23T13:44:04+00:00

Because of the early browser switch we won't get possible error
messages, as it will clear the screen right after showing the message,
e.g.:

Before:

   $ sudo perf c2c report -d lcl
   $

After:
   $ sudo perf c2c report -d lcl
   File perf.data not owned by current user or root (use -f to override)
   $
   $ ls -la perf.data
   -rw-------. 1 acme acme 26648 Nov 22 15:11 perf.data
   $

Signed-off-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1479764011-10732-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c report: Add --show-all option

2016-10-21T13:32:02+00:00

Normally we limit the main list to contain only entries with HITM %
value > 0.0005, but it might be useful to display all captured entries.
Adding --show-all option for that.

Requested-and-Tested-by: Arnaldo Carvalho de Melo 
Signed-off-by: Jiri Olsa 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/n/tip-nokgjdwikbegec5jzj4mxhqc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c report: Add --no-source option

2016-10-21T13:32:01+00:00

Add a possibility to disable source line column with new --no-source
option. It source line data could take lot of time to retrieve, so it
could be a performance burden for big data.

Signed-off-by: Jiri Olsa 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/n/tip-8p6s2727fq8nbsm3it5gix3p@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf c2c: Add man page and credits

2016-10-21T13:32:01+00:00

Add man page for c2c command and credits to builtin-c2c.c file.

Tested-by: Arnaldo Carvalho de Melo 
Signed-off-by: Jiri Olsa 
Cc: Andi Kleen 
Cc: David Ahern 
Cc: Don Zickus 
Cc: Joe Mario 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/n/tip-twbp391v8v9f5idp584hlfov@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo