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510f0247cd
When min_latency is not given, it prints 0 - 0. It should be 0 - 1.
Before:
$ sudo ./perf ftrace latency -a -T do_futex sleep 1
# DURATION | COUNT | GRAPH |
0 - 0 us | 321 | ########### |
...
After:
$ sudo ./perf ftrace latency -a -T do_futex sleep 1
# DURATION | COUNT | GRAPH |
0 - 1 us | 699 | ############ |
...
Fixes: 08b875b6bf ("perf ftrace latency: Introduce --min-latency to narrow down into a latency range")
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Gabriele Monaco <gmonaco@redhat.com
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250108210015.1188531-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>