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git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-cgroup-cpu.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
6 static void test_cgroup_cpu_adjust_period(void) {
7 log_info("/* %s */", __func__
);
9 /* Period 1ms, quota 40% -> Period 2.5ms */
10 assert_se(2500 == cgroup_cpu_adjust_period(USEC_PER_MSEC
, 400 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
11 /* Period 10ms, quota 10% -> keep. */
12 assert_se(10 * USEC_PER_MSEC
== cgroup_cpu_adjust_period(10 * USEC_PER_MSEC
, 100 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
13 /* Period 1ms, quota 1000% -> keep. */
14 assert_se(USEC_PER_MSEC
== cgroup_cpu_adjust_period(USEC_PER_MSEC
, 10000 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
15 /* Period 100ms, quota 30% -> keep. */
16 assert_se(100 * USEC_PER_MSEC
== cgroup_cpu_adjust_period(100 * USEC_PER_MSEC
, 300 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
17 /* Period 5s, quota 40% -> adjust to 1s. */
18 assert_se(USEC_PER_SEC
== cgroup_cpu_adjust_period(5 * USEC_PER_SEC
, 400 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
19 /* Period 2s, quota 250% -> adjust to 1s. */
20 assert_se(USEC_PER_SEC
== cgroup_cpu_adjust_period(2 * USEC_PER_SEC
, 2500 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
21 /* Period 10us, quota 5,000,000% -> adjust to 1ms. */
22 assert_se(USEC_PER_MSEC
== cgroup_cpu_adjust_period(10, 50000000 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
23 /* Period 10ms, quota 50,000% -> keep. */
24 assert_se(10 * USEC_PER_MSEC
== cgroup_cpu_adjust_period(10 * USEC_PER_MSEC
, 500000 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
25 /* Period 10ms, quota 1% -> adjust to 100ms. */
26 assert_se(100 * USEC_PER_MSEC
== cgroup_cpu_adjust_period(10 * USEC_PER_MSEC
, 10 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
27 /* Period 10ms, quota .001% -> adjust to 1s. */
28 assert_se(1 * USEC_PER_SEC
== cgroup_cpu_adjust_period(10 * USEC_PER_MSEC
, 10, USEC_PER_MSEC
, USEC_PER_SEC
));
29 /* Period 0ms, quota 200% -> adjust to 1ms. */
30 assert_se(1 * USEC_PER_MSEC
== cgroup_cpu_adjust_period(0, 2 * USEC_PER_SEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
31 /* Period 0ms, quota 40% -> adjust to 2.5ms. */
32 assert_se(2500 == cgroup_cpu_adjust_period(0, 400 * USEC_PER_MSEC
, USEC_PER_MSEC
, USEC_PER_SEC
));
35 int main(int argc
, char *argv
[]) {
36 test_cgroup_cpu_adjust_period();