perf list: Add debug support for outputing alias string

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For debugging and testing it is useful to see the converted alias
string. Add support to perf stat/record and perf list to print the alias
conversion. The text string is saved in the alias structure.  For perf
stat/record it is folded into the normal -v. For perf list -v was taken,
so we use --debug.

Before:

% perf list
...
cache:
  l1d.replacement
       [L1D data line replacements]
  l1d_pend_miss.fb_full
       [Cycles a demand request was blocked due to Fill Buffers inavailability]

After

% perf list --debug
...
cache:
  l1d.replacement
       [L1D data line replacements]
        cpu/umask=0x1,period=2000003,event=0x51/
  l1d_pend_miss.fb_full
       [Cycles a demand request was blocked due to Fill Buffers inavailability]
        cpu/umask=0x2,period=2000003,cmask=1,event=0x48/

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170128020345.19007-6-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

...

This commit is contained in:

Andi Kleen 2017-01-27 18:03:40 -08:00 • committed by Arnaldo Carvalho de Melo

parent 231bb2aa32

commit f23610245c

4 changed files with 15 additions and 0 deletions

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3

tools/perf/builtin-list.c

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3

tools/perf/util/parse-events.y

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8

tools/perf/util/pmu.c

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1

tools/perf/util/pmu.h

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