diff options
Diffstat (limited to 'tools/testing/selftests/damon/damos_quota_goal.py')
-rw-r--r-- | tools/testing/selftests/damon/damos_quota_goal.py | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/tools/testing/selftests/damon/damos_quota_goal.py b/tools/testing/selftests/damon/damos_quota_goal.py new file mode 100644 index 000000000000..18246f3b62f7 --- /dev/null +++ b/tools/testing/selftests/damon/damos_quota_goal.py @@ -0,0 +1,77 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 + +import subprocess +import time + +import _damon_sysfs + +def main(): + # access two 10 MiB memory regions, 2 second per each + sz_region = 10 * 1024 * 1024 + proc = subprocess.Popen(['./access_memory', '2', '%d' % sz_region, '2000']) + + goal = _damon_sysfs.DamosQuotaGoal( + metric=_damon_sysfs.qgoal_metric_user_input, target_value=10000) + kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond( + contexts=[_damon_sysfs.DamonCtx( + ops='vaddr', + targets=[_damon_sysfs.DamonTarget(pid=proc.pid)], + schemes=[_damon_sysfs.Damos( + action='stat', + quota=_damon_sysfs.DamosQuota( + goals=[goal], reset_interval_ms=100), + )] # schemes + )] # contexts + )]) # kdamonds + + err = kdamonds.start() + if err != None: + print('kdamond start failed: %s' % err) + exit(1) + + score_values_to_test = [0, 15000, 5000, 18000] + while proc.poll() == None: + if len(score_values_to_test) == 0: + time.sleep(0.1) + continue + + goal.current_value = score_values_to_test.pop(0) + expect_increase = goal.current_value < goal.target_value + + err = kdamonds.kdamonds[0].commit_schemes_quota_goals() + if err is not None: + print('commit_schemes_quota_goals failed: %s' % err) + exit(1) + + err = kdamonds.kdamonds[0].update_schemes_effective_quotas() + if err is not None: + print('before-update_schemes_effective_quotas failed: %s' % err) + exit(1) + last_effective_bytes = goal.effective_bytes + + time.sleep(0.5) + + err = kdamonds.kdamonds[0].update_schemes_effective_quotas() + if err is not None: + print('after-update_schemes_effective_quotas failed: %s' % err) + exit(1) + + print('score: %s, effective quota: %d -> %d (%.3fx)' % ( + goal.current_value, last_effective_bytes, goal.effective_bytes, + goal.effective_bytes / last_effective_bytes + if last_effective_bytes != 0 else -1.0)) + + if last_effective_bytes == goal.effective_bytes: + print('efective bytes not changed: %d' % goal.effective_bytes) + exit(1) + + increased = last_effective_bytes < goal.effective_bytes + if expect_increase != increased: + print('expectation of increase (%s) != increased (%s)' % + (expect_increase, increased)) + exit(1) + last_effective_bytes = goal.effective_bytes + +if __name__ == '__main__': + main() |