diff options
| author | SeongJae Park <sj@kernel.org> | 2025-07-20 10:16:33 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-26 15:08:17 -0700 |
| commit | b436dfaad2ba7bf5061017248ee595f299074610 (patch) | |
| tree | 2ef5de1df385d1eae438cc64c9082ece8e089819 /tools/testing | |
| parent | 9d93c103edf0cdf7f1f251b943799a7fee56a580 (diff) | |
selftests/damon/_damon_sysfs: support monitoring intervals goal setup
_damon_sysfs.py contains code for test-purpose DAMON sysfs interface
control. Add support of the monitoring intervals auto-tune goal setup for
more tests.
Link: https://lkml.kernel.org/r/20250720171652.92309-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/damon/_damon_sysfs.py | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/selftests/damon/_damon_sysfs.py index f853af6ad926..ec6230929d36 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -405,18 +405,56 @@ class DamonTarget: return write_file( os.path.join(self.sysfs_dir(), 'pid_target'), self.pid) +class IntervalsGoal: + access_bp = None + aggrs = None + min_sample_us = None + max_sample_us = None + attrs = None # owner DamonAttrs + + def __init__(self, access_bp=0, aggrs=0, min_sample_us=0, max_sample_us=0): + self.access_bp = access_bp + self.aggrs = aggrs + self.min_sample_us = min_sample_us + self.max_sample_us = max_sample_us + + def sysfs_dir(self): + return os.path.join(self.attrs.interval_sysfs_dir(), 'intervals_goal') + + def stage(self): + err = write_file( + os.path.join(self.sysfs_dir(), 'access_bp'), self.access_bp) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'aggrs'), self.aggrs) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'min_sample_us'), + self.min_sample_us) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'max_sample_us'), + self.max_sample_us) + if err is not None: + return err + return None + class DamonAttrs: sample_us = None aggr_us = None + intervals_goal = None update_us = None min_nr_regions = None max_nr_regions = None context = None - def __init__(self, sample_us=5000, aggr_us=100000, update_us=1000000, + def __init__(self, sample_us=5000, aggr_us=100000, + intervals_goal=IntervalsGoal(), update_us=1000000, min_nr_regions=10, max_nr_regions=1000): self.sample_us = sample_us self.aggr_us = aggr_us + self.intervals_goal = intervals_goal + self.intervals_goal.attrs = self self.update_us = update_us self.min_nr_regions = min_nr_regions self.max_nr_regions = max_nr_regions @@ -438,6 +476,9 @@ class DamonAttrs: self.aggr_us) if err is not None: return err + err = self.intervals_goal.stage() + if err is not None: + return err err = write_file(os.path.join(self.interval_sysfs_dir(), 'update_us'), self.update_us) if err is not None: |