Test perturbers

Structs

struct test_perturb_env (4 fields)

§ struct test_conc *conc

§ size_t subject_count

§ int64_t victim_cpu

TEST_PERTURB_VICTIM_ANY or a CPU id

§ void (*finding)(const char *kind, const char *msg)

struct test_perturb_desc (2 fields)

§ const char *name

§ test_perturb_fn fn

struct test_perturb_config (4 fields)

0 = default

§ const char *name

§ time_ns_t interval_us

§ time_ns_t period_ms

§ time_ns_t gap_ms

typedef void (*test_perturb_fn)(
    const struct test_perturb_env * env,
    struct test_conc_worker * self
)

const struct test_perturb_desc * test_perturb_lookup(const char *name)

struct test_perturb_config * test_perturb_config_lookup(const char *name)

struct test_perturb_config * test_perturb_config_lookup_n(
    const char *name,
    size_t len
)

void test_perturb_migrator(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

void test_perturb_waker(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

void test_perturb_apc_spammer(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

void test_perturb_alloc_pressure(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

void test_perturb_inject_armer(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

void test_perturb_ipi_storm(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

void test_perturb_dpc_storm(
    const struct test_perturb_env *env,
    struct test_conc_worker *self
)

#define TEST_PERTURB_VICTIM_BIAS 4

Background noise to create IPIs/DPCs and other stuff

No victim CPU given

#define TEST_PERTURB_VICTIM_ANY (-1)