diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2021-04-26 18:37:16 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 10:30:59 -0300 |
| commit | 8f08cf3330da0582e7a51bd1b999c820147e19d1 (patch) | |
| tree | 1df4fc9fb843cafed16c1e6be2553bf85495bf15 /tools/perf | |
| parent | 2775de0b115a6ffab7882c45c755005ee0ac0122 (diff) | |
| download | linux-8f08cf3330da0582e7a51bd1b999c820147e19d1.tar.gz | |
perf report: Make --skip-empty as default
so that the compact output is shown by default. Also add 'report.skip-empty'
config option to override the default. Users can also use --no-skip-empty
command line option to change the behavior anytime.
Committer testing:
$ perf report --stat
Aggregated stats:
TOTAL events: 19
COMM events: 2
EXIT events: 1
SAMPLE events: 8
MMAP2 events: 4
FINISHED_ROUND events: 1
THREAD_MAP events: 1
CPU_MAP events: 1
TIME_CONV events: 1
cycles:u stats:
SAMPLE events: 8
$ perf config report.skip-empty=false
$ perf report --stat
Aggregated stats:
TOTAL events: 19
MMAP events: 0
LOST events: 0
COMM events: 2
EXIT events: 1
THROTTLE events: 0
UNTHROTTLE events: 0
FORK events: 0
READ events: 0
SAMPLE events: 8
MMAP2 events: 4
AUX events: 0
ITRACE_START events: 0
LOST_SAMPLES events: 0
SWITCH events: 0
SWITCH_CPU_WIDE events: 0
NAMESPACES events: 0
KSYMBOL events: 0
BPF_EVENT events: 0
CGROUP events: 0
TEXT_POKE events: 0
ATTR events: 0
EVENT_TYPE events: 0
TRACING_DATA events: 0
BUILD_ID events: 0
FINISHED_ROUND events: 1
ID_INDEX events: 0
AUXTRACE_INFO events: 0
AUXTRACE events: 0
AUXTRACE_ERROR events: 0
THREAD_MAP events: 1
CPU_MAP events: 1
STAT_CONFIG events: 0
STAT events: 0
STAT_ROUND events: 0
EVENT_UPDATE events: 0
TIME_CONV events: 1
FEATURE events: 0
COMPRESSED events: 0
cycles:u stats:
SAMPLE events: 8
$ perf config report.skip-empty
report.skip-empty=false
$
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210427013717.1651674-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Documentation/perf-config.txt | 5 | ||||
| -rw-r--r-- | tools/perf/builtin-report.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index 154a1ced72b2..b0872c801866 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -123,6 +123,7 @@ Given a $HOME/.perfconfig like this: queue-size = 0 children = true group = true + skip-empty = true [llvm] dump-obj = true @@ -531,6 +532,10 @@ report.*:: 0.07% 0.00% noploop ld-2.15.so [.] strcmp 0.03% 0.00% noploop [kernel.kallsyms] [k] timerqueue_del + report.skip-empty:: + This option can change default stat behavior with empty results. + If it's set true, 'perf report --stat' will not show 0 stats. + top.*:: top.children:: Same as 'report.children'. So if it is enabled, the output of 'top' diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 4910194acaa6..36f9ccfeb38a 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -136,6 +136,11 @@ static int report__config(const char *var, const char *value, void *cb) return 0; } + if (!strcmp(var, "report.skip-empty")) { + rep->skip_empty = perf_config_bool(var, value); + return 0; + } + return 0; } @@ -1160,6 +1165,7 @@ int cmd_report(int argc, const char **argv) .pretty_printing_style = "normal", .socket_filter = -1, .annotation_opts = annotation__default_options, + .skip_empty = true, }; const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", |