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selftests/damon/_damon_sysfs: support DAMOS stats

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Update the test-purpose DAMON sysfs control Python module to support DAMOS
stats.

Link: https://lkml.kernel.org/r/20240207203134.69976-3-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>
This commit is contained in:
SeongJae Park 2024-02-07 12:31:28 -08:00 committed by Andrew Morton
parent faf4977ef0
commit a0f87454c0
1 changed files with 32 additions and 0 deletions
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32
tools/testing/selftests/damon/_damon_sysfs.py
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@ -96,6 +96,20 @@ class DamosQuota:
if err != None:
return err
class DamosStats:
nr_tried = None
sz_tried = None
nr_applied = None
sz_applied = None
qt_exceeds = None
def __init__(self, nr_tried, sz_tried, nr_applied, sz_applied, qt_exceeds):
self.nr_tried = nr_tried
self.sz_tried = sz_tried
self.nr_applied = nr_applied
self.sz_applied = sz_applied
self.qt_exceeds = qt_exceeds
class Damos:
action = None
access_pattern = None
@ -104,6 +118,7 @@ class Damos:
idx = None
context = None
tried_bytes = None
stats = None
def __init__(self, action='stat', access_pattern=DamosAccessPattern(),
quota=DamosQuota()):
@ -322,6 +337,23 @@ class Kdamond:
return err
scheme.tried_bytes = int(content)
def update_schemes_stats(self):
err = write_file(os.path.join(self.sysfs_dir(), 'state'),
'update_schemes_stats')
if err != None:
return err
for context in self.contexts:
for scheme in context.schemes:
stat_values = []
for stat in ['nr_tried', 'sz_tried', 'nr_applied',
'sz_applied', 'qt_exceeds']:
content, err = read_file(
os.path.join(scheme.sysfs_dir(), 'stats', stat))
if err != None:
return err
stat_values.append(int(content))
scheme.stats = DamosStats(*stat_values)
class Kdamonds:
kdamonds = []