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| author | Namhyung Kim <namhyung@kernel.org> | 2022-11-08 00:33:08 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-11-14 19:21:19 +0300 |
| commit | 81a02c6577ecfee7056ccafbd028984d0d670c0c (patch) | |
| tree | a0cd3771568c954e0beb8cacbe212055ecc66a3b /tools/perf/util/stat-display.c | |
| parent | 4ea0be1f0db588afdb2d4d94dfa921b01f34a3c3 (diff) | |
| download | linux-81a02c6577ecfee7056ccafbd028984d0d670c0c.tar.xz | |
perf stat: Clear screen only if output file is a tty
The --interval-clear option makes perf stat to clear the terminal at
each interval. But it doesn't need to clear the screen when it saves
to a file.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stat-display.c')
| -rw-r--r-- | tools/perf/util/stat-display.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c index 576283afa319..ccb804546d5a 100644 --- a/tools/perf/util/stat-display.c +++ b/tools/perf/util/stat-display.c @@ -890,7 +890,7 @@ static void print_interval(struct perf_stat_config *config, FILE *output = config->output; static int num_print_interval; - if (config->interval_clear) + if (config->interval_clear && isatty(fileno(output))) puts(CONSOLE_CLEAR); if (!config->iostat_run && !config->json_output) |