Add DAMON sysfs interface functionality tests for DAMON monitoring attribute parameters, including intervals, intervals tuning goals, and min/max number of regions.
Signed-off-by: SeongJae Park sj@kernel.org --- tools/testing/selftests/damon/sysfs.py | 34 ++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/damon/sysfs.py b/tools/testing/selftests/damon/sysfs.py index 4ff99db0d247..a721901a880d 100755 --- a/tools/testing/selftests/damon/sysfs.py +++ b/tools/testing/selftests/damon/sysfs.py @@ -20,6 +20,11 @@ def dump_damon_status_dict(pid): except Exception as e: return None, 'json.load fail (%s)' % e
+def fail(expectation, status): + print('unexpected %s' % expectation) + print(json.dumps(status, indent=4)) + exit(1) + def main(): kdamonds = _damon_sysfs.Kdamonds( [_damon_sysfs.Kdamond(contexts=[_damon_sysfs.DamonCtx()])]) @@ -34,8 +39,33 @@ def main(): exit(1)
if len(status['contexts']) != 1: - print('number of contexts: %d' % len(status['contexts'])) - exit(1) + fail('number of contexts', status) + + ctx = status['contexts'][0] + attrs = ctx['attrs'] + if attrs['sample_interval'] != 5000: + fail('sample interval', status) + if attrs['aggr_interval'] != 100000: + fail('aggr interval', status) + if attrs['ops_update_interval'] != 1000000: + fail('ops updte interval', status) + + if attrs['intervals_goal'] != { + 'access_bp': 0, 'aggrs': 0, + 'min_sample_us': 0, 'max_sample_us': 0}: + fail('intervals goal') + + if attrs['min_nr_regions'] != 10: + fail('min_nr_regions') + if attrs['max_nr_regions'] != 1000: + fail('max_nr_regions') + + if ctx['adaptive_targets'] != []: + fail('adaptive_targets') + + if ctx['schemes'] != []: + fail('schemes') + kdamonds.stop()
if __name__ == '__main__':