diff options
Diffstat (limited to 'tests/sys/kern/sched_affinity.c')
| -rw-r--r-- | tests/sys/kern/sched_affinity.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/tests/sys/kern/sched_affinity.c b/tests/sys/kern/sched_affinity.c new file mode 100644 index 000000000000..9af6076c1649 --- /dev/null +++ b/tests/sys/kern/sched_affinity.c @@ -0,0 +1,275 @@ +/*- + * Copyright (c) 2022 Dmitry Chagin <dchagin@FreeBSD.org> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include <sys/types.h> +#include <sys/stdint.h> +#include <sys/sysctl.h> + +#include <errno.h> +#include <sched.h> + +#include <atf-c.h> + +static uint32_t maxcpuid; +static uint32_t maxcpus; +static uint32_t cpus; + +static uint32_t +support_getcpus(void) +{ + uint32_t val; + size_t sz = sizeof(val); + + ATF_REQUIRE(sysctlbyname("kern.smp.cpus", &val, &sz, NULL, 0) == 0); + return (val); +} + +static uint32_t +support_getmaxcpus(void) +{ + uint32_t val; + size_t sz = sizeof(val); + + ATF_REQUIRE(sysctlbyname("kern.smp.maxcpus", &val, &sz, NULL, 0) == 0); + return (val); +} + +static uint32_t +support_getmaxcpuid(void) +{ + cpuset_t *set; + int setsize, rv; + uint32_t i, id; + + for (i = 1; i < maxcpus; i++) { + setsize = CPU_ALLOC_SIZE(i); + set = CPU_ALLOC(i); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(setsize, set); + rv = cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, setsize, set); + if (rv == 0) { + id = __BIT_FLS(i, set) - 1; + CPU_FREE(set); + break; + } + CPU_FREE(set); + } + ATF_REQUIRE(rv == 0); + return (id); +} + +ATF_TC_WITHOUT_HEAD(test_setinvalidcpu); +ATF_TC_BODY(test_setinvalidcpu, tc) +{ + size_t cpusetsize; + cpuset_t *set; + int cpu; + + cpu = maxcpuid > 1 ? maxcpuid - 1 : 0; + + cpusetsize = CPU_ALLOC_SIZE(maxcpuid + 1); + set = CPU_ALLOC(maxcpuid + 1); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + CPU_SET_S(maxcpuid + 1, cpusetsize, set); + CPU_SET_S(cpu, cpusetsize, set); + ATF_REQUIRE(sched_setaffinity(0, cpusetsize, set) == 0); + CPU_FREE(set); + + cpusetsize = CPU_ALLOC_SIZE(maxcpus + 1); + set = CPU_ALLOC(maxcpus + 1); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + CPU_SET_S(maxcpuid + 1, cpusetsize, set); + CPU_SET_S(cpu, cpusetsize, set); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == -1); + ATF_REQUIRE_EQ(errno, EINVAL); + CPU_FREE(set); +} + +ATF_TC_WITHOUT_HEAD(test_setvalidcpu); +ATF_TC_BODY(test_setvalidcpu, tc) +{ + size_t cpusetsize; + cpuset_t *set; + int cpu; + + ATF_REQUIRE(maxcpuid < maxcpus); + cpu = maxcpuid > 1 ? maxcpuid - 1 : 0; + + cpusetsize = CPU_ALLOC_SIZE(maxcpus + 1); + set = CPU_ALLOC(maxcpus + 1); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + CPU_SET_S(cpu, cpusetsize, set); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == 0); + ATF_REQUIRE_EQ(cpu, sched_getcpu()); + CPU_FREE(set); +} + +ATF_TC_WITHOUT_HEAD(test_setzeroset1); +ATF_TC_BODY(test_setzeroset1, tc) +{ + size_t cpusetsize; + cpuset_t *set; + + cpusetsize = CPU_ALLOC_SIZE(maxcpuid + 1); + set = CPU_ALLOC(maxcpuid + 1); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + ATF_REQUIRE(sched_setaffinity(0, cpusetsize, set) == -1); + ATF_REQUIRE_EQ(errno, EINVAL); + CPU_FREE(set); +} + +ATF_TC_WITHOUT_HEAD(test_setzeroset2); +ATF_TC_BODY(test_setzeroset2, tc) +{ + size_t cpusetsize; + cpuset_t *set; + + cpusetsize = CPU_ALLOC_SIZE(maxcpuid + 1); + set = CPU_ALLOC(maxcpuid + 1); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == -1); + ATF_REQUIRE_EQ(errno, EDEADLK); + CPU_FREE(set); +} + +ATF_TC_WITHOUT_HEAD(test_setmaxsetsize); +ATF_TC_BODY(test_setmaxsetsize, tc) +{ + size_t cpusetsize; + cpuset_t *set; + + cpusetsize = CPU_ALLOC_SIZE(maxcpus * 2); + set = CPU_ALLOC(maxcpus * 2); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 0); + CPU_SET_S(0, cpusetsize, set); + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 1); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == 0); + + CPU_ZERO_S(cpusetsize, set); + CPU_SET_S(maxcpuid, cpusetsize, set); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == 0); + + CPU_ZERO_S(cpusetsize, set); + CPU_SET_S(maxcpuid + 1, cpusetsize, set); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == -1); + ATF_REQUIRE_EQ(errno, EINVAL); + CPU_FREE(set); +} + +ATF_TC_WITHOUT_HEAD(test_setminsetsize); +ATF_TC_BODY(test_setminsetsize, tc) +{ + size_t cpusetsize = 1; + int8_t set; + + if (cpus <= 8) + return; + + set = 1; + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, (const cpuset_t *)&set) == 0); + set = 0; + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, (const cpuset_t *)&set) == -1); + ATF_REQUIRE_EQ(errno, EDEADLK); +} + +ATF_TC_WITHOUT_HEAD(test_getminsetsize); +ATF_TC_BODY(test_getminsetsize, tc) +{ + size_t cpusetsize = 1; + int8_t set = 0; + + if (cpus < 9) + return; + ATF_REQUIRE(cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, (cpuset_t *)&set) == -1); + ATF_REQUIRE_EQ(errno, ERANGE); +} + +ATF_TC_WITHOUT_HEAD(test_getsetsize); +ATF_TC_BODY(test_getsetsize, tc) +{ + size_t cpusetsize; + cpuset_t *set; + + cpusetsize = CPU_ALLOC_SIZE(maxcpuid + 1); + set = CPU_ALLOC(maxcpuid + 1); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + ATF_REQUIRE(cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == 0); + CPU_FREE(set); +} + +ATF_TC_WITHOUT_HEAD(test_holes); +ATF_TC_BODY(test_holes, tc) +{ + cpuset_t *set; + int cpusetsize; + + cpusetsize = CPU_ALLOC_SIZE(maxcpus * 2); + set = CPU_ALLOC(maxcpus * 2); + ATF_REQUIRE(set != NULL); + CPU_ZERO_S(cpusetsize, set); + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 0); + CPU_SET_S(maxcpuid, cpusetsize, set); + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 1); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == 0); + + CPU_ZERO_S(cpusetsize, set); + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 0); + CPU_SET_S(maxcpuid + 1, cpusetsize, set); + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 1); + ATF_REQUIRE(cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == -1); + ATF_REQUIRE_EQ(errno, EINVAL); + + ATF_REQUIRE(CPU_COUNT_S(cpusetsize, set) == 1); + ATF_REQUIRE(cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, + -1, cpusetsize, set) == 0); + ATF_REQUIRE(CPU_ISSET_S(maxcpuid + 1, cpusetsize, set) == false); + ATF_REQUIRE(CPU_ISSET_S(maxcpuid, cpusetsize, set) == true); + ATF_REQUIRE_EQ(maxcpuid, (uint32_t)sched_getcpu()); +} + +ATF_TP_ADD_TCS(tp) +{ + + cpus = support_getcpus(); + maxcpus = support_getmaxcpus(); + maxcpuid = support_getmaxcpuid(); + + ATF_TP_ADD_TC(tp, test_setinvalidcpu); + ATF_TP_ADD_TC(tp, test_setvalidcpu); + ATF_TP_ADD_TC(tp, test_setzeroset1); + ATF_TP_ADD_TC(tp, test_setzeroset2); + + ATF_TP_ADD_TC(tp, test_setminsetsize); + ATF_TP_ADD_TC(tp, test_setmaxsetsize); + + ATF_TP_ADD_TC(tp, test_getminsetsize); + ATF_TP_ADD_TC(tp, test_getsetsize); + + ATF_TP_ADD_TC(tp, test_holes); + + return (atf_no_error()); +} |