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b=vBoPJ0m9l4O6ITYbJQknF5WDIYk/HVLZvJT2c33e+MYIWfyz4mZCaw8uUZR/wZcSC EEqJ6+FQjSNgCu/LIb6T9VkE6xoPunTdpYh10yH8QJeu2RJx2DbCUz77i+9/C6kEWd fas32jb7wH0Q0Lr1gzNil1mMf6cdBrR/ojnAnUw4ceOIj/7kWNI6ik6rvBoKTu3pgO tOXs2A8EAq7xGdzlvnafwCjxUfco4jzpec2Jnc3+G/bW46ykmIbe9HDMBa++RFM3Dt 2ATHC000gEXyHduR3GA1SaWh0IZVWzalXA8rPk2cW3RXKAFu2cWxVsZtxrA8KU2Z8l AVsJaWHaUJK8w== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 00/22] selftests/damon/sysfs.py: test all parameters Date: Sun, 20 Jul 2025 10:16:30 -0700 Message-Id: <20250720171652.92309-1-sj@kernel.org> X-Mailer: git-send-email 2.39.5 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 7FF531C0014 X-Rspam-User: X-Rspamd-Server: rspam09 X-Stat-Signature: yt1ej49rb7tt3f1tqrfkxp4xu6xnnakr X-HE-Tag: 1753031818-685804 X-HE-Meta: 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 53tzEZux pidqJSJUz9lKXhJx8b39afo99ZBVq0aoY+YYfdu44Kl2ErTv8h+wzZrdj3QjJ3B4vSPYecyOtbPxh2w2KS9/t1g/4kpfSjxOvzC7avamSAvzlk2VfLSsr64EVUCbeIoyD4Hbsyyau4rXKUHQyRYxzu9tHzO6jLtdA+huXUWEfcKLDNe1d4EeBk1sYOMBsJm0B2JlrueKSaOZbBdPCaLTX18wRwaEujhrT02ILR4Vo8H5ynHg= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: sysfs.py tests if DAMON sysfs interface is passing the user-requested parameters to DAMON as expected. But only the default (minimum) parameters are being tested. This is partially because _damon_sysfs.py, which is the library for making the parameter requests, is not supporting the entire parameters. The internal DAMON status dump script (drgn_dump_damon_status.py) is also not dumping entire parameters. Extend the test coverage by updating parameters input and status dumping scripts to support all parameters, and writing additional tests using those. This increased test coverage actually found one real bug (https://lore.kernel.org/20250719181932.72944-1-sj@kernel.org). First seven patches (1-7) extend _damon_sysfs.py for all parameters setup. The eight patch (8) fixes _damon_sysfs.py to use correct max nr_acceses and age values for their type. Following three patches (9-11) extend drgn_dump_damon_status.py to dump full DAMON parameters. Following nine patches (12-20) refactor sysfs.py for general testing code reuse, and extend it for full parameters check. Finally, two patches (21 and 22) add test cases in sysfs.py for full parameters testing. SeongJae Park (22): selftests/damon/_damon_sysfs: support DAMOS watermarks setup selftests/damon/_damon_sysfs: support DAMOS filters setup selftests/damon/_damon_sysfs: support monitoring intervals goal setup selftests/damon/_damon_sysfs: support DAMOS quota weights setup selftests/damon/_damon_sysfs: support DAMOS quota goal nid setup selftests/damon/_damon_sysfs: support DAMOS action dests setup selftests/damon/_damon_sysfs: support DAMOS target_nid setup selftests/damon/_damon_sysfs: use 2**32 - 1 as max nr_accesses and age selftests/damon/drgn_dump_damon_status: dump damos->migrate_dests selftests/damon/drgn_dump_damon_status: dump ctx->ops.id selftests/damon/drgn_dump_damon_status: dump DAMOS filters selftests/damon/sysfs.py: generalize DAMOS Watermarks commit assertion selftests/damon/sysfs.py: generalize DamosQuota commit assertion selftests/damon/sysfs.py: test quota goal commitment selftests/damon/sysfs.py: test DAMOS destinations commitment selftests/damon/sysfs.py: generalize DAMOS schemes commit assertion selftests/damon/sysfs.py: test DAMOS filters commitment selftests/damon/sysfs.py: generalize DAMOS schemes commit assertion selftests/damon/sysfs.py: generalize monitoring attributes commit assertion selftests/damon/sysfs.py: generalize DAMON context commit assertion selftests/damon/sysfs.py: test non-default parameters runtime commit selftests/damon/sysfs.py: test runtime reduction of DAMON parameters tools/testing/selftests/damon/_damon_sysfs.py | 301 +++++++++++++++++- .../selftests/damon/drgn_dump_damon_status.py | 63 +++- tools/testing/selftests/damon/sysfs.py | 284 +++++++++++++---- 3 files changed, 568 insertions(+), 80 deletions(-) base-commit: fc8066077f44a4fd43f8fdb12bc238f8fbeaa3c5 -- 2.39.5