Test that quota and burst can be written in either order without losing the configured burst value.
Signed-off-by: Zhe Liu <[email protected]> --- tools/testing/selftests/cgroup/test_cpu.c | 40 +++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/tools/testing/selftests/cgroup/test_cpu.c b/tools/testing/selftests/cgroup/test_cpu.c index f9f7017d9299..b13c2535afcd 100644 --- a/tools/testing/selftests/cgroup/test_cpu.c +++ b/tools/testing/selftests/cgroup/test_cpu.c @@ -733,6 +733,45 @@ static int test_cpucg_max(const char *root) return ret; } +static int test_cpucg_max_burst(const char *root) +{ + int ret = KSFT_FAIL; + char *cpucg; + + cpucg = cg_name(root, "cpucg_max_burst"); + if (!cpucg) + return KSFT_FAIL; + + if (cg_create(cpucg)) + goto cleanup; + + if (cg_write(cpucg, "cpu.max", "max 100000") || + cg_write(cpucg, "cpu.max.burst", "100000000") || + cg_write(cpucg, "cpu.max", "50000 100000") || + cg_read_strcmp(cpucg, "cpu.max.burst", "100000000\n")) + goto cleanup; + + if (cg_write(cpucg, "cpu.max.burst", "80000") || + cg_write(cpucg, "cpu.max", "100000 100000") || + cg_read_strcmp(cpucg, "cpu.max.burst", "80000\n")) + goto cleanup; + + if (cg_write(cpucg, "cpu.max.burst", "0") || + cg_write(cpucg, "cpu.max", "50000 100000") || + cg_write(cpucg, "cpu.max", "100000 100000") || + cg_write(cpucg, "cpu.max.burst", "80000") || + cg_read_strcmp(cpucg, "cpu.max.burst", "80000\n")) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + cg_destroy(cpucg); + free(cpucg); + + return ret; +} + /* * This test verifies that a process inside of a nested cgroup whose parent * group has a cpu.max value set, is properly throttled. @@ -822,6 +861,7 @@ struct cpucg_test { T(test_cpucg_nested_weight_overprovisioned), T(test_cpucg_nested_weight_underprovisioned), T(test_cpucg_max), + T(test_cpucg_max_burst), T(test_cpucg_max_nested), }; #undef T -- 2.25.1
