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| author | Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> | 2022-01-17 21:34:29 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-02-10 16:26:16 -0300 |
| commit | ae9c7242b29fa2976c70b5b250f8942cf7289211 (patch) | |
| tree | 4c5295697ccd7a1fa42602820b2d5751a551c26f | |
| parent | 56f735fff35e31e54027df36a653b0268bc94f06 (diff) | |
| download | linux-ae9c7242b29fa2976c70b5b250f8942cf7289211.tar.bz2 | |
perf record: Introduce bytes written stats
Introduce a function to calculate the total amount of data written
and use it to support the --max-size option.
Reviewed-by: Riccardo Mancini <rickyman7@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/3e2c69186641446f8ab003ec209bccc762b3394d.1642440724.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/builtin-record.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 8766a3dc9440..50981bbc98bb 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -110,6 +110,7 @@ struct record_thread { struct record *rec; unsigned long long samples; unsigned long waking; + u64 bytes_written; }; static __thread struct record_thread *thread; @@ -194,10 +195,22 @@ static bool switch_output_time(struct record *rec) trigger_is_ready(&switch_output_trigger); } +static u64 record__bytes_written(struct record *rec) +{ + int t; + u64 bytes_written = rec->bytes_written; + struct record_thread *thread_data = rec->thread_data; + + for (t = 0; t < rec->nr_threads; t++) + bytes_written += thread_data[t].bytes_written; + + return bytes_written; +} + static bool record__output_max_size_exceeded(struct record *rec) { return rec->output_max_size && - (rec->bytes_written >= rec->output_max_size); + (record__bytes_written(rec) >= rec->output_max_size); } static int record__write(struct record *rec, struct mmap *map __maybe_unused, @@ -213,13 +226,15 @@ static int record__write(struct record *rec, struct mmap *map __maybe_unused, return -1; } - if (!(map && map->file)) + if (map && map->file) + thread->bytes_written += size; + else rec->bytes_written += size; if (record__output_max_size_exceeded(rec) && !done) { fprintf(stderr, "[ perf record: perf size limit reached (%" PRIu64 " KB)," " stopping session ]\n", - rec->bytes_written >> 10); + record__bytes_written(rec) >> 10); done = 1; } |