perf: sched map skips redundant lines with cpu filters

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perf sched map supports cpu filter.
However, even with cpu filters active, any context switch currently
corresponds to a separate line.
As result, context switches on irrelevant cpus result to redundant lines,
which makes the output particlularly difficult to read on wide
architectures.

Fix it by skipping printing for irrelevant CPUs.

Example snippet of output before fix:

  *B0       1.461147 secs
   B0
   B0
   B0
  *G0       1.517139 secs

After fix:

  *B0       1.461147 secs
  *G0       1.517139 secs

Signed-off-by: Fernand Sieber <sieberf@amazon.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-and-tested-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240614073517.94974-1-sieberf@amazon.com

...

This commit is contained in:

Fernand Sieber 2024-06-14 09:35:17 +02:00 • committed by Namhyung Kim

parent 65b37df8c6

commit 231295a186

1 changed files with 6 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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tools/perf/builtin-sched.c

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