linux/tools/perf
Andi Kleen 92a61f6412 perf stat: Implement CSV metrics output
Now support CSV output for metrics. With the new output callbacks this
is relatively straight forward by creating new callbacks.

This allows to easily plot metrics from CSV files.

The new line callback needs to know the number of fields to skip them
correctly

Example output before:

  % perf stat -x, true
  0.200687,,task-clock,200687,100.00
  0,,context-switches,200687,100.00
  0,,cpu-migrations,200687,100.00
  40,,page-faults,200687,100.00
  730871,,cycles,203601,100.00
  551056,,stalled-cycles-frontend,203601,100.00
  <not supported>,,stalled-cycles-backend,0,100.00
  385523,,instructions,203601,100.00
  78028,,branches,203601,100.00
  3946,,branch-misses,203601,100.00

After:

  % perf stat -x, true
  .502457,,task-clock,502457,100.00,0.485,CPUs utilized
  0,,context-switches,502457,100.00,0.000,K/sec
  0,,cpu-migrations,502457,100.00,0.000,K/sec
  45,,page-faults,502457,100.00,0.090,M/sec
  644692,,cycles,509102,100.00,1.283,GHz
  423470,,stalled-cycles-frontend,509102,100.00,65.69,frontend cycles idle
  <not supported>,,stalled-cycles-backend,0,100.00,,,,
  492701,,instructions,509102,100.00,0.76,insn per cycle
  ,,,,,0.86,stalled cycles per insn
  97767,,branches,509102,100.00,194.578,M/sec
  4788,,branch-misses,509102,100.00,4.90,of all branches

or easier readable

  $ perf stat  -x, -o x.csv true
  $ column -s, -t x.csv
  0.490635        task-clock              490635 100.00 0.489   CPUs utilized
  0               context-switches        490635 100.00 0.000   K/sec
  0               cpu-migrations          490635 100.00 0.000   K/sec
  45              page-faults             490635 100.00 0.092   M/sec
  629080          cycles                  497698 100.00 1.282   GHz
  409498          stalled-cycles-frontend 497698 100.00 65.09   frontend cycles idle
  <not supported> stalled-cycles-backend  0      100.00
  491424          instructions            497698 100.00 0.78    insn per cycle
                                                        0.83    stalled cycles per insn
  97278           branches                497698 100.00 198.270 M/sec
  4569            branch-misses           497698 100.00 4.70    of all branches

Two new fields are added: metric value and metric name.

v2: Split out function argument changes
v3: Reenable metrics for real.
v4: Fix wrong hunk from refactoring.
v5: Remove extra "noise" printing (Jiri), but add it to the not counted case.
Print empty metrics for not counted.
v6: Avoid outputting metric on empty format.
v7: Print metric at the end
v8: Remove extra run, ena fields
v9: Avoid extra new line for unsupported counters

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/1456785386-19481-3-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-03-03 11:10:36 -03:00
..
arch perf tools: Rename parse_events__free_terms() to parse_events_terms__delete() 2016-02-12 17:09:17 -03:00
bench perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
config perf build: Add libcrypto feature detection 2016-02-05 09:46:45 -03:00
Documentation perf top: Add --hierarchy option 2016-02-24 20:21:15 -03:00
jvmti perf jvmti: improve error message in Makefile 2016-02-25 10:43:28 -03:00
python perf python: Support the PERF_RECORD_SWITCH event 2015-10-07 19:41:50 -03:00
scripts perf python scripting: Append examples to err msg about audit-libs-python 2016-02-12 11:30:27 -03:00
tests perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
trace/strace/groups perf trace: Add read/write to the file group 2015-09-04 13:22:06 -03:00
ui perf report: Left align dynamic entries in hierarchy 2016-02-26 18:37:06 -03:00
util perf stat: Implement CSV metrics output 2016-03-03 11:10:36 -03:00
.gitignore perf tools: Add Intel PT instruction decoder 2015-08-17 11:11:36 -03:00
Build perf tools: Set and pass DOCDIR to builtin-report.c 2016-01-12 12:42:07 -03:00
builtin-annotate.c perf hists: Introduce perf_evsel__output_resort function 2016-02-03 11:13:11 -03:00
builtin-bench.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-buildid-cache.c perf tools: Move timestamp creation to util 2016-01-29 17:30:06 -03:00
builtin-buildid-list.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-config.c perf config: Add '--system' and '--user' options to select which config file is used 2016-02-12 10:54:46 -03:00
builtin-data.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-diff.c perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
builtin-evlist.c perf evlist: Add --trace-fields option to show trace fields 2016-01-08 14:23:02 -03:00
builtin-help.c perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
builtin-inject.c perf inject: Add jitdump mmap injection support 2016-02-05 09:46:45 -03:00
builtin-kmem.c perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
builtin-kvm.c perf kvm/powerpc: Port perf kvm stat to powerpc 2016-01-29 17:49:54 -03:00
builtin-list.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-lock.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-mem.c perf mem: Introduce perf_mem_events__name function 2016-02-24 10:11:52 -03:00
builtin-probe.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-record.c perf record: Ensure return non-zero rc when mmap fail 2016-03-03 11:10:36 -03:00
builtin-report.c perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
builtin-sched.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-script.c perf script: Remove duplicated code and needless script_spec__findnew() 2016-02-25 16:14:33 -03:00
builtin-stat.c perf stat: Implement CSV metrics output 2016-03-03 11:10:36 -03:00
builtin-timechart.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-top.c perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
builtin-trace.c perf trace: Check and discard not only 'nr' but also '__syscall_nr' 2016-02-29 11:34:28 -03:00
builtin-version.c perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin.h perf tools: Add 'perf config' command 2015-11-23 18:31:24 -03:00
command-list.txt perf tools: Do not show trace command if it's not compiled in 2016-01-08 12:46:17 -03:00
CREDITS
design.txt
Makefile perf build tests: Do parallell builds with 'build-test' 2016-02-04 15:57:00 -03:00
Makefile.perf perf build: Add EXTRA_LDFLAGS option to makefile 2016-02-12 11:30:20 -03:00
MANIFEST perf tools: Add missing sources to perf's MANIFEST 2016-01-11 12:09:25 -03:00
perf-archive.sh
perf-completion.sh perf tools: Avoid confusion with preloaded bash function for perf bash completion 2015-03-19 13:53:27 -03:00
perf-read-vdso.c
perf-sys.h perf tools: Move generic barriers out of perf-sys.h 2015-05-08 16:05:08 -03:00
perf-with-kcore.sh perf tools: Fix perf-with-kcore handling of arguments containing spaces 2015-08-06 16:48:27 -03:00
perf.c perf config: Bring perf_default_config to the very beginning at main() 2016-02-26 19:49:16 -03:00
perf.h perf record: Add --all-user/--all-kernel options 2016-02-18 10:48:44 -03:00