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Ian Rogers 6ed249441a perf list: Add JSON output option 
Output events and metrics in a JSON format by overriding the print
callbacks. Currently other command line options aren't supported and
metrics are repeated once per metric group.

Committer testing:

  $ perf list cache

  List of pre-defined events (to be used in -e or -M):

    L1-dcache-load-misses                              [Hardware cache event]
    L1-dcache-loads                                    [Hardware cache event]
    L1-dcache-prefetches                               [Hardware cache event]
    L1-icache-load-misses                              [Hardware cache event]
    L1-icache-loads                                    [Hardware cache event]
    branch-load-misses                                 [Hardware cache event]
    branch-loads                                       [Hardware cache event]
    dTLB-load-misses                                   [Hardware cache event]
    dTLB-loads                                         [Hardware cache event]
    iTLB-load-misses                                   [Hardware cache event]
    iTLB-loads                                         [Hardware cache event]
  $ perf list --json cache
  [
  {
          "Unit": "cache",
          "EventName": "L1-dcache-load-misses",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "L1-dcache-loads",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "L1-dcache-prefetches",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "L1-icache-load-misses",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "L1-icache-loads",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "branch-load-misses",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "branch-loads",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "dTLB-load-misses",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "dTLB-loads",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "iTLB-load-misses",
          "EventType": "Hardware cache event"
  },
  {
          "Unit": "cache",
          "EventName": "iTLB-loads",
          "EventType": "Hardware cache event"
  }
  ]
  $

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Xin Gao <gaoxin@cdjrlc.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: http://lore.kernel.org/lkml/20221114210723.2749751-11-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2022-11-23 10:29:59 -03:00
..
Build.txt perf tools: Add doc about how to build perf with Asan and UBSan 2019-03-19 16:52:04 -03:00
Makefile perf doc: Reorganize ARTICLES variables. 2021-08-02 09:56:18 -03:00
android.txt perf tools: Update android build documentation 2016-07-04 20:27:27 -03:00
arm-coresight.txt perf docs: Fix man page build wrt perf-arm-coresight.txt 2022-10-25 17:40:48 -03:00
asciidoc.conf perf docs: Allow man page date to be specified 2019-09-27 09:26:14 -03:00
asciidoctor-extensions.rb perf Documentation: Support for asciidoctor 2018-04-26 13:47:10 -03:00
build-docdep.perl perf doc: Fix doc.dep 2021-08-02 09:56:17 -03:00
build-xed.txt perf script: Add --insn-trace for instruction decoding 2018-10-24 15:29:50 -03:00
callchain-overhead-calculation.txt perf tools: Document --children option in more detail 2015-04-29 10:38:06 -03:00
cat-texi.perl perf doc: Fix perfman.info build 2021-08-02 09:56:17 -03:00
db-export.txt perf db-export: Add brief documentation 2019-06-05 09:47:57 -03:00
examples.txt perf tools: Replace lkml.org links with lore 2021-02-11 12:54:27 -03:00
guest-files.txt perf tools: Tidy guest option documentation 2022-08-11 18:50:17 -03:00
guestmount.txt perf tools: Tidy guest option documentation 2022-08-11 18:50:17 -03:00
intel-bts.txt perf tools: Add Intel BTS support 2015-08-21 11:34:10 -03:00
intel-hybrid.txt perf record: Fix manpage formatting of description of support to hybrid systems 2022-08-27 11:55:17 -03:00
intel-pt.txt perf intel-pt: Update intel-pt.txt file with new location of the documentation 2020-03-11 11:00:33 -03:00
itrace.txt perf auxtrace: Add itrace option flag d+e to log on error 2022-10-04 08:55:21 -03:00
jit-interface.txt
…
jitdump-specification.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
manpage-1.72.xsl
…
manpage-base.xsl
…
manpage-bold-literal.xsl
…
manpage-normal.xsl
…
manpage-suppress-sp.xsl
…
perf-annotate.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-archive.txt perf archive: Remove duplicated 'runs' in man page 2013-12-09 15:21:45 -03:00
perf-arm-spe.txt perf docs: Add man page entry for Arm SPE 2022-04-14 08:54:03 -03:00
perf-bench.txt perf bench: Add basic syscall benchmark 2020-07-28 08:50:48 -03:00
perf-buildid-cache.txt perf record: Disable debuginfod by default 2022-01-15 17:41:25 -03:00
perf-buildid-list.txt perf buildid-list: Add a "-m" option to show kernel and modules build-ids 2022-07-18 16:35:34 -03:00
perf-c2c.txt perf mem/c2c: Add load store event mappings for AMD 2022-10-06 16:30:06 -03:00
perf-config.txt perf auxtrace: Add itrace option flag d+e to log on error 2022-10-04 08:55:21 -03:00
perf-daemon.txt perf daemon: Add examples to man page 2021-02-11 10:19:52 -03:00
perf-data.txt perf data: Add JSON export 2021-04-29 10:30:58 -03:00
perf-diff.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-dlfilter.txt perf dlfilter: Add machine_pid and vcpu 2022-07-20 11:08:13 -03:00
perf-evlist.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-ftrace.txt perf ftrace latency: Update documentation 2022-03-22 17:45:39 -03:00
perf-help.txt
…
perf-inject.txt perf inject: Clarify build-id options a little bit 2022-10-04 08:55:22 -03:00
perf-intel-pt.txt perf scripts python: intel-pt-events.py: Add ability interleave output 2022-10-27 16:37:26 -03:00
perf-iostat.txt perf docs: Fix accidental em-dashes 2021-08-10 11:05:21 -03:00
perf-kallsyms.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-kmem.txt perf kmem: Improve man page for record options 2021-10-08 16:10:02 -03:00
perf-kvm.txt perf tools: Tidy guest option documentation 2022-08-11 18:50:17 -03:00
perf-kwork.txt perf kwork: Implement BPF trace 2022-07-26 16:31:54 -03:00
perf-list.txt perf list: Add JSON output option 2022-11-23 10:29:59 -03:00
perf-lock.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-mem.txt perf mem/c2c: Add load store event mappings for AMD 2022-10-06 16:30:06 -03:00
perf-probe.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-record.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-report.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-sched.txt perf sched timehist: Add support for filtering on CPU 2020-01-06 11:46:09 -03:00
perf-script-perl.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-script-python.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-script.txt perf tools: Tidy guest option documentation 2022-08-11 18:50:17 -03:00
perf-stat.txt perf tools: Make quiet mode consistent between tools 2022-10-27 16:37:26 -03:00
perf-test.txt perf test: Add -F/--dont-fork option 2016-06-30 18:27:45 -03:00
perf-timechart.txt perf timechart: Document missing --force option 2017-11-16 14:50:06 -03:00
perf-top.txt perf docs: Correct typo of event_sources 2022-06-03 21:14:51 +02:00
perf-trace.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-version.txt perf version: Add man page 2018-04-02 13:52:23 -03:00
perf.data-directory-format.txt perf record: Put a copy of kcore into the perf.data directory 2019-11-06 15:43:05 -03:00
perf.data-file-format.txt perf header: Record non-CPU PMU capabilities 2022-06-24 13:18:55 -03:00
perf.txt perf docs: Add man page entry for Arm SPE 2022-04-14 08:54:03 -03:00
perfconfig.example perf config: Show default report configuration in example and docs 2016-09-01 09:44:13 -03:00
security.txt perf docs: Introduce security.txt file to document related issues 2020-05-28 10:03:26 -03:00
tips.txt perf tools: Fix typos / broken sentences 2019-07-02 16:08:16 -03:00
topdown.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00