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perf test lock_contention.sh: Skip test if not enough CPUs

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Machines with less then 4 CPUs weren't consistently triggering lock
events required for the test.

Skip the test on those machines. The limit of 4 CPUs is set as it
generates around 100 lock events for a test.

Signed-off-by: Veronika Molnarova <vmolnaro@redhat.com>
Acked-by: Michael Petlan <mpetlan@redhat.com>
Link: https://lore.kernel.org/r/20230919150419.23193-2-vmolnaro@redhat.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Veronika Molnarova 2023-09-19 17:02:43 +02:00 committed by Namhyung Kim
parent fa52d995d1
commit 29441ab3a3
1 changed files with 6 additions and 0 deletions
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6
tools/perf/tests/shell/lock_contention.sh
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@ -32,6 +32,12 @@ check() {
err=2
exit
fi
if [ `nproc` -lt 4 ]; then
echo "[Skip] Low number of CPUs (`nproc`), lock event cannot be triggered certainly"
err=2
exit
fi
}
test_record()