#include "test/jemalloc_test.h"
TEST_BEGIN(test_stats_summary) {
size_t sz, allocated, active, resident, mapped;
int expected = config_stats ? 0 : ENOENT;
sz = sizeof(size_t);
assert_d_eq(mallctl("stats.allocated", (void *)&allocated, &sz, NULL,
0), expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.active", (void *)&active, &sz, NULL, 0),
expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.resident", (void *)&resident, &sz, NULL, 0),
expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.mapped", (void *)&mapped, &sz, NULL, 0),
expected, "Unexpected mallctl() result");
if (config_stats) {
assert_zu_le(allocated, active,
"allocated should be no larger than active");
assert_zu_lt(active, resident,
"active should be less than resident");
assert_zu_lt(active, mapped,
"active should be less than mapped");
}
}
TEST_END
TEST_BEGIN(test_stats_large) {
void *p;
uint64_t epoch;
size_t allocated;
uint64_t nmalloc, ndalloc, nrequests;
size_t sz;
int expected = config_stats ? 0 : ENOENT;
p = mallocx(SC_SMALL_MAXCLASS + 1, MALLOCX_ARENA(0));
assert_ptr_not_null(p, "Unexpected mallocx() failure");
assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
0, "Unexpected mallctl() failure");
sz = sizeof(size_t);
assert_d_eq(mallctl("stats.arenas.0.large.allocated",
(void *)&allocated, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(uint64_t);
assert_d_eq(mallctl("stats.arenas.0.large.nmalloc", (void *)&nmalloc,
&sz, NULL, 0), expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.large.ndalloc", (void *)&ndalloc,
&sz, NULL, 0), expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.large.nrequests",
(void *)&nrequests, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
if (config_stats) {
assert_zu_gt(allocated, 0,
"allocated should be greater than zero");
assert_u64_ge(nmalloc, ndalloc,
"nmalloc should be at least as large as ndalloc");
assert_u64_le(nmalloc, nrequests,
"nmalloc should no larger than nrequests");
}
dallocx(p, 0);
}
TEST_END
TEST_BEGIN(test_stats_arenas_summary) {
void *little, *large;
uint64_t epoch;
size_t sz;
int expected = config_stats ? 0 : ENOENT;
size_t mapped;
uint64_t dirty_npurge, dirty_nmadvise, dirty_purged;
uint64_t muzzy_npurge, muzzy_nmadvise, muzzy_purged;
little = mallocx(SC_SMALL_MAXCLASS, MALLOCX_ARENA(0));
assert_ptr_not_null(little, "Unexpected mallocx() failure");
large = mallocx((1U << SC_LG_LARGE_MINCLASS),
MALLOCX_ARENA(0));
assert_ptr_not_null(large, "Unexpected mallocx() failure");
dallocx(little, 0);
dallocx(large, 0);
assert_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0),
opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result");
assert_d_eq(mallctl("arena.0.purge", NULL, NULL, NULL, 0), 0,
"Unexpected mallctl() failure");
assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
0, "Unexpected mallctl() failure");
sz = sizeof(size_t);
assert_d_eq(mallctl("stats.arenas.0.mapped", (void *)&mapped, &sz, NULL,
0), expected, "Unexepected mallctl() result");
sz = sizeof(uint64_t);
assert_d_eq(mallctl("stats.arenas.0.dirty_npurge",
(void *)&dirty_npurge, &sz, NULL, 0), expected,
"Unexepected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.dirty_nmadvise",
(void *)&dirty_nmadvise, &sz, NULL, 0), expected,
"Unexepected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.dirty_purged",
(void *)&dirty_purged, &sz, NULL, 0), expected,
"Unexepected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.muzzy_npurge",
(void *)&muzzy_npurge, &sz, NULL, 0), expected,
"Unexepected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.muzzy_nmadvise",
(void *)&muzzy_nmadvise, &sz, NULL, 0), expected,
"Unexepected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.muzzy_purged",
(void *)&muzzy_purged, &sz, NULL, 0), expected,
"Unexepected mallctl() result");
if (config_stats) {
if (!background_thread_enabled()) {
assert_u64_gt(dirty_npurge + muzzy_npurge, 0,
"At least one purge should have occurred");
}
assert_u64_le(dirty_nmadvise, dirty_purged,
"dirty_nmadvise should be no greater than dirty_purged");
assert_u64_le(muzzy_nmadvise, muzzy_purged,
"muzzy_nmadvise should be no greater than muzzy_purged");
}
}
TEST_END
void *
thd_start(void *arg) {
return NULL;
}
static void
no_lazy_lock(void) {
thd_t thd;
thd_create(&thd, thd_start, NULL);
thd_join(thd, NULL);
}
TEST_BEGIN(test_stats_arenas_small) {
void *p;
size_t sz, allocated;
uint64_t epoch, nmalloc, ndalloc, nrequests;
int expected = config_stats ? 0 : ENOENT;
no_lazy_lock(); /* Lazy locking would dodge tcache testing. */
p = mallocx(SC_SMALL_MAXCLASS, MALLOCX_ARENA(0));
assert_ptr_not_null(p, "Unexpected mallocx() failure");
assert_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0),
opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result");
assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
0, "Unexpected mallctl() failure");
sz = sizeof(size_t);
assert_d_eq(mallctl("stats.arenas.0.small.allocated",
(void *)&allocated, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(uint64_t);
assert_d_eq(mallctl("stats.arenas.0.small.nmalloc", (void *)&nmalloc,
&sz, NULL, 0), expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.small.ndalloc", (void *)&ndalloc,
&sz, NULL, 0), expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.small.nrequests",
(void *)&nrequests, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
if (config_stats) {
assert_zu_gt(allocated, 0,
"allocated should be greater than zero");
assert_u64_gt(nmalloc, 0,
"nmalloc should be no greater than zero");
assert_u64_ge(nmalloc, ndalloc,
"nmalloc should be at least as large as ndalloc");
assert_u64_gt(nrequests, 0,
"nrequests should be greater than zero");
}
dallocx(p, 0);
}
TEST_END
TEST_BEGIN(test_stats_arenas_large) {
void *p;
size_t sz, allocated;
uint64_t epoch, nmalloc, ndalloc;
int expected = config_stats ? 0 : ENOENT;
p = mallocx((1U << SC_LG_LARGE_MINCLASS), MALLOCX_ARENA(0));
assert_ptr_not_null(p, "Unexpected mallocx() failure");
assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
0, "Unexpected mallctl() failure");
sz = sizeof(size_t);
assert_d_eq(mallctl("stats.arenas.0.large.allocated",
(void *)&allocated, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(uint64_t);
assert_d_eq(mallctl("stats.arenas.0.large.nmalloc", (void *)&nmalloc,
&sz, NULL, 0), expected, "Unexpected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.large.ndalloc", (void *)&ndalloc,
&sz, NULL, 0), expected, "Unexpected mallctl() result");
if (config_stats) {
assert_zu_gt(allocated, 0,
"allocated should be greater than zero");
assert_u64_gt(nmalloc, 0,
"nmalloc should be greater than zero");
assert_u64_ge(nmalloc, ndalloc,
"nmalloc should be at least as large as ndalloc");
}
dallocx(p, 0);
}
TEST_END
static void
gen_mallctl_str(char *cmd, char *name, unsigned arena_ind) {
sprintf(cmd, "stats.arenas.%u.bins.0.%s", arena_ind, name);
}
TEST_BEGIN(test_stats_arenas_bins) {
void *p;
size_t sz, curslabs, curregs, nonfull_slabs;
uint64_t epoch, nmalloc, ndalloc, nrequests, nfills, nflushes;
uint64_t nslabs, nreslabs;
int expected = config_stats ? 0 : ENOENT;
/* Make sure allocation below isn't satisfied by tcache. */
assert_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0),
opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result");
unsigned arena_ind, old_arena_ind;
sz = sizeof(unsigned);
assert_d_eq(mallctl("arenas.create", (void *)&arena_ind, &sz, NULL, 0),
0, "Arena creation failure");
sz = sizeof(arena_ind);
assert_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
(void *)&arena_ind, sizeof(arena_ind)), 0,
"Unexpected mallctl() failure");
p = malloc(bin_infos[0].reg_size);
assert_ptr_not_null(p, "Unexpected malloc() failure");
assert_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0),
opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result");
assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
0, "Unexpected mallctl() failure");
char cmd[128];
sz = sizeof(uint64_t);
gen_mallctl_str(cmd, "nmalloc", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nmalloc, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "ndalloc", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&ndalloc, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "nrequests", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nrequests, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(size_t);
gen_mallctl_str(cmd, "curregs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&curregs, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(uint64_t);
gen_mallctl_str(cmd, "nfills", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nfills, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "nflushes", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nflushes, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "nslabs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nslabs, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "nreslabs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nreslabs, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(size_t);
gen_mallctl_str(cmd, "curslabs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&curslabs, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "nonfull_slabs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nonfull_slabs, &sz, NULL, 0),
expected, "Unexpected mallctl() result");
if (config_stats) {
assert_u64_gt(nmalloc, 0,
"nmalloc should be greater than zero");
assert_u64_ge(nmalloc, ndalloc,
"nmalloc should be at least as large as ndalloc");
assert_u64_gt(nrequests, 0,
"nrequests should be greater than zero");
assert_zu_gt(curregs, 0,
"allocated should be greater than zero");
if (opt_tcache) {
assert_u64_gt(nfills, 0,
"At least one fill should have occurred");
assert_u64_gt(nflushes, 0,
"At least one flush should have occurred");
}
assert_u64_gt(nslabs, 0,
"At least one slab should have been allocated");
assert_zu_gt(curslabs, 0,
"At least one slab should be currently allocated");
assert_zu_eq(nonfull_slabs, 0,
"slabs_nonfull should be empty");
}
dallocx(p, 0);
}
TEST_END
TEST_BEGIN(test_stats_arenas_lextents) {
void *p;
uint64_t epoch, nmalloc, ndalloc;
size_t curlextents, sz, hsize;
int expected = config_stats ? 0 : ENOENT;
sz = sizeof(size_t);
assert_d_eq(mallctl("arenas.lextent.0.size", (void *)&hsize, &sz, NULL,
0), 0, "Unexpected mallctl() failure");
p = mallocx(hsize, MALLOCX_ARENA(0));
assert_ptr_not_null(p, "Unexpected mallocx() failure");
assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
0, "Unexpected mallctl() failure");
sz = sizeof(uint64_t);
assert_d_eq(mallctl("stats.arenas.0.lextents.0.nmalloc",
(void *)&nmalloc, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
assert_d_eq(mallctl("stats.arenas.0.lextents.0.ndalloc",
(void *)&ndalloc, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
sz = sizeof(size_t);
assert_d_eq(mallctl("stats.arenas.0.lextents.0.curlextents",
(void *)&curlextents, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
if (config_stats) {
assert_u64_gt(nmalloc, 0,
"nmalloc should be greater than zero");
assert_u64_ge(nmalloc, ndalloc,
"nmalloc should be at least as large as ndalloc");
assert_u64_gt(curlextents, 0,
"At least one extent should be currently allocated");
}
dallocx(p, 0);
}
TEST_END
int
main(void) {
return test_no_reentrancy(
test_stats_summary,
test_stats_large,
test_stats_arenas_summary,
test_stats_arenas_small,
test_stats_arenas_large,
test_stats_arenas_bins,
test_stats_arenas_lextents);
}