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mm/damon/core-test: add a unit test for damon_moving_sum() 

Add a simple unit test for the pseudo moving-sum function
(damon_moving_sum()).

Link: https://lkml.kernel.org/r/20230915025251.72816-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2023-09-15 02:52:47 +00:00 committed by Andrew Morton
parent d2c062ade0
commit 0926e8ff96
1 changed files with 16 additions and 0 deletions
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16
mm/damon/core-test.h
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@ -341,6 +341,21 @@ static void damon_test_set_attrs(struct kunit *test)
KUNIT_EXPECT_EQ(test, damon_set_attrs(c, &invalid_attrs), -EINVAL);
}
static void damon_test_moving_sum(struct kunit *test)
{
unsigned int mvsum = 50000, nomvsum = 50000, len_window = 10;
unsigned int new_values[] = {10000, 0, 10000, 0, 0, 0, 10000, 0, 0, 0};
unsigned int expects[] = {55000, 50000, 55000, 50000, 45000, 40000,
45000, 40000, 35000, 30000};
int i;
for (i = 0; i < ARRAY_SIZE(new_values); i++) {
mvsum = damon_moving_sum(mvsum, nomvsum, len_window,
new_values[i]);
KUNIT_EXPECT_EQ(test, mvsum, expects[i]);
}
}
static void damos_test_new_filter(struct kunit *test)
{
struct damos_filter *filter;
@ -425,6 +440,7 @@ static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damon_test_set_regions),
KUNIT_CASE(damon_test_update_monitoring_result),
KUNIT_CASE(damon_test_set_attrs),
KUNIT_CASE(damon_test_moving_sum),
KUNIT_CASE(damos_test_new_filter),
KUNIT_CASE(damos_test_filter_out),
{},