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| author | SeongJae Park <sj@kernel.org> | 2023-12-12 22:48:09 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-21 01:48:13 +0300 |
| commit | b5906f5f7359f561c5915dc146ced1bc2733401c (patch) | |
| tree | 445418f1f4729ea2080c5ad8effff23bffed35d7 /tools/testing/selftests/damon/Makefile | |
| parent | 3402c6ce398e33bf1733f619756dd068ca2e2aa5 (diff) | |
| download | linux-b5906f5f7359f561c5915dc146ced1bc2733401c.tar.xz | |
selftests/damon: add a test for update_schemes_tried_regions sysfs command
Add a selftest for verifying the accuracy of DAMON's access monitoring
functionality. The test starts a program of artificial access pattern,
monitor the access pattern using DAMON, and check if DAMON finds expected
amount of hot data region (working set size) with only acceptable error
rate.
Note that the acceptable error rate is set with only naive assumptions and
small number of tests. Hence failures of the test may not always mean
DAMON is broken. Rather than that, those could be a signal to better
understand the real accuracy level of DAMON in wider environments. Based
on further finding, we could optimize DAMON or adjust the expectation of
the test.
Link: https://lkml.kernel.org/r/20231212194810.54457-5-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/selftests/damon/Makefile')
| -rw-r--r-- | tools/testing/selftests/damon/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile index b71247ba7196..90ffafc42c5e 100644 --- a/tools/testing/selftests/damon/Makefile +++ b/tools/testing/selftests/damon/Makefile @@ -2,6 +2,7 @@ # Makefile for damon selftests TEST_GEN_FILES += huge_count_read_write +TEST_GEN_FILES += access_memory TEST_FILES = _chk_dependency.sh _debugfs_common.sh TEST_PROGS = debugfs_attrs.sh debugfs_schemes.sh debugfs_target_ids.sh @@ -9,6 +10,7 @@ TEST_PROGS += debugfs_empty_targets.sh debugfs_huge_count_read_write.sh TEST_PROGS += debugfs_duplicate_context_creation.sh TEST_PROGS += debugfs_rm_non_contexts.sh TEST_PROGS += sysfs.sh sysfs_update_removed_scheme_dir.sh +TEST_PROGS += sysfs_update_schemes_tried_regions_wss_estimation.py TEST_PROGS += reclaim.sh lru_sort.sh include ../lib.mk |