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Diffstat (limited to 'deps/jemalloc/test/unit/stats.c')
| -rw-r--r-- | deps/jemalloc/test/unit/stats.c | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/deps/jemalloc/test/unit/stats.c b/deps/jemalloc/test/unit/stats.c new file mode 100644 index 0000000..bbdbd18 --- /dev/null +++ b/deps/jemalloc/test/unit/stats.c @@ -0,0 +1,431 @@ +#include "test/jemalloc_test.h" + +#define STRINGIFY_HELPER(x) #x +#define STRINGIFY(x) STRINGIFY_HELPER(x) + +TEST_BEGIN(test_stats_summary) { + size_t sz, allocated, active, resident, mapped; + int expected = config_stats ? 0 : ENOENT; + + sz = sizeof(size_t); + expect_d_eq(mallctl("stats.allocated", (void *)&allocated, &sz, NULL, + 0), expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.active", (void *)&active, &sz, NULL, 0), + expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.resident", (void *)&resident, &sz, NULL, 0), + expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.mapped", (void *)&mapped, &sz, NULL, 0), + expected, "Unexpected mallctl() result"); + + if (config_stats) { + expect_zu_le(allocated, active, + "allocated should be no larger than active"); + expect_zu_lt(active, resident, + "active should be less than resident"); + expect_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)); + expect_ptr_not_null(p, "Unexpected mallocx() failure"); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + + sz = sizeof(size_t); + expect_d_eq(mallctl("stats.arenas.0.large.allocated", + (void *)&allocated, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + sz = sizeof(uint64_t); + expect_d_eq(mallctl("stats.arenas.0.large.nmalloc", (void *)&nmalloc, + &sz, NULL, 0), expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.large.ndalloc", (void *)&ndalloc, + &sz, NULL, 0), expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.large.nrequests", + (void *)&nrequests, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + + if (config_stats) { + expect_zu_gt(allocated, 0, + "allocated should be greater than zero"); + expect_u64_ge(nmalloc, ndalloc, + "nmalloc should be at least as large as ndalloc"); + expect_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)); + expect_ptr_not_null(little, "Unexpected mallocx() failure"); + large = mallocx((1U << SC_LG_LARGE_MINCLASS), + MALLOCX_ARENA(0)); + expect_ptr_not_null(large, "Unexpected mallocx() failure"); + + dallocx(little, 0); + dallocx(large, 0); + + expect_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0), + opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result"); + expect_d_eq(mallctl("arena.0.purge", NULL, NULL, NULL, 0), 0, + "Unexpected mallctl() failure"); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + + sz = sizeof(size_t); + expect_d_eq(mallctl("stats.arenas.0.mapped", (void *)&mapped, &sz, NULL, + 0), expected, "Unexepected mallctl() result"); + + sz = sizeof(uint64_t); + expect_d_eq(mallctl("stats.arenas.0.dirty_npurge", + (void *)&dirty_npurge, &sz, NULL, 0), expected, + "Unexepected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.dirty_nmadvise", + (void *)&dirty_nmadvise, &sz, NULL, 0), expected, + "Unexepected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.dirty_purged", + (void *)&dirty_purged, &sz, NULL, 0), expected, + "Unexepected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.muzzy_npurge", + (void *)&muzzy_npurge, &sz, NULL, 0), expected, + "Unexepected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.muzzy_nmadvise", + (void *)&muzzy_nmadvise, &sz, NULL, 0), expected, + "Unexepected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.muzzy_purged", + (void *)&muzzy_purged, &sz, NULL, 0), expected, + "Unexepected mallctl() result"); + + if (config_stats) { + if (!is_background_thread_enabled() && !opt_hpa) { + expect_u64_gt(dirty_npurge + muzzy_npurge, 0, + "At least one purge should have occurred"); + } + expect_u64_le(dirty_nmadvise, dirty_purged, + "dirty_nmadvise should be no greater than dirty_purged"); + expect_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)); + expect_ptr_not_null(p, "Unexpected mallocx() failure"); + + expect_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0), + opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result"); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + + sz = sizeof(size_t); + expect_d_eq(mallctl("stats.arenas.0.small.allocated", + (void *)&allocated, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + sz = sizeof(uint64_t); + expect_d_eq(mallctl("stats.arenas.0.small.nmalloc", (void *)&nmalloc, + &sz, NULL, 0), expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.small.ndalloc", (void *)&ndalloc, + &sz, NULL, 0), expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.small.nrequests", + (void *)&nrequests, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + + if (config_stats) { + expect_zu_gt(allocated, 0, + "allocated should be greater than zero"); + expect_u64_gt(nmalloc, 0, + "nmalloc should be no greater than zero"); + expect_u64_ge(nmalloc, ndalloc, + "nmalloc should be at least as large as ndalloc"); + expect_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)); + expect_ptr_not_null(p, "Unexpected mallocx() failure"); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + + sz = sizeof(size_t); + expect_d_eq(mallctl("stats.arenas.0.large.allocated", + (void *)&allocated, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + sz = sizeof(uint64_t); + expect_d_eq(mallctl("stats.arenas.0.large.nmalloc", (void *)&nmalloc, + &sz, NULL, 0), expected, "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.large.ndalloc", (void *)&ndalloc, + &sz, NULL, 0), expected, "Unexpected mallctl() result"); + + if (config_stats) { + expect_zu_gt(allocated, 0, + "allocated should be greater than zero"); + expect_u64_gt(nmalloc, 0, + "nmalloc should be greater than zero"); + expect_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. */ + expect_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); + expect_d_eq(mallctl("arenas.create", (void *)&arena_ind, &sz, NULL, 0), + 0, "Arena creation failure"); + sz = sizeof(arena_ind); + expect_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); + expect_ptr_not_null(p, "Unexpected malloc() failure"); + + expect_d_eq(mallctl("thread.tcache.flush", NULL, NULL, NULL, 0), + opt_tcache ? 0 : EFAULT, "Unexpected mallctl() result"); + + expect_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); + expect_d_eq(mallctl(cmd, (void *)&nmalloc, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + gen_mallctl_str(cmd, "ndalloc", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&ndalloc, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + gen_mallctl_str(cmd, "nrequests", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&nrequests, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + sz = sizeof(size_t); + gen_mallctl_str(cmd, "curregs", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&curregs, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + + sz = sizeof(uint64_t); + gen_mallctl_str(cmd, "nfills", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&nfills, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + gen_mallctl_str(cmd, "nflushes", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&nflushes, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + + gen_mallctl_str(cmd, "nslabs", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&nslabs, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + gen_mallctl_str(cmd, "nreslabs", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&nreslabs, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + sz = sizeof(size_t); + gen_mallctl_str(cmd, "curslabs", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&curslabs, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + gen_mallctl_str(cmd, "nonfull_slabs", arena_ind); + expect_d_eq(mallctl(cmd, (void *)&nonfull_slabs, &sz, NULL, 0), + expected, "Unexpected mallctl() result"); + + if (config_stats) { + expect_u64_gt(nmalloc, 0, + "nmalloc should be greater than zero"); + expect_u64_ge(nmalloc, ndalloc, + "nmalloc should be at least as large as ndalloc"); + expect_u64_gt(nrequests, 0, + "nrequests should be greater than zero"); + expect_zu_gt(curregs, 0, + "allocated should be greater than zero"); + if (opt_tcache) { + expect_u64_gt(nfills, 0, + "At least one fill should have occurred"); + expect_u64_gt(nflushes, 0, + "At least one flush should have occurred"); + } + expect_u64_gt(nslabs, 0, + "At least one slab should have been allocated"); + expect_zu_gt(curslabs, 0, + "At least one slab should be currently allocated"); + expect_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); + expect_d_eq(mallctl("arenas.lextent.0.size", (void *)&hsize, &sz, NULL, + 0), 0, "Unexpected mallctl() failure"); + + p = mallocx(hsize, MALLOCX_ARENA(0)); + expect_ptr_not_null(p, "Unexpected mallocx() failure"); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + + sz = sizeof(uint64_t); + expect_d_eq(mallctl("stats.arenas.0.lextents.0.nmalloc", + (void *)&nmalloc, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + expect_d_eq(mallctl("stats.arenas.0.lextents.0.ndalloc", + (void *)&ndalloc, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + sz = sizeof(size_t); + expect_d_eq(mallctl("stats.arenas.0.lextents.0.curlextents", + (void *)&curlextents, &sz, NULL, 0), expected, + "Unexpected mallctl() result"); + + if (config_stats) { + expect_u64_gt(nmalloc, 0, + "nmalloc should be greater than zero"); + expect_u64_ge(nmalloc, ndalloc, + "nmalloc should be at least as large as ndalloc"); + expect_u64_gt(curlextents, 0, + "At least one extent should be currently allocated"); + } + + dallocx(p, 0); +} +TEST_END + +static void +test_tcache_bytes_for_usize(size_t usize) { + uint64_t epoch; + size_t tcache_bytes, tcache_stashed_bytes; + size_t sz = sizeof(tcache_bytes); + + void *ptr = mallocx(usize, 0); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + assert_d_eq(mallctl( + "stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL) ".tcache_bytes", + &tcache_bytes, &sz, NULL, 0), 0, "Unexpected mallctl failure"); + assert_d_eq(mallctl( + "stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL) + ".tcache_stashed_bytes", &tcache_stashed_bytes, &sz, NULL, 0), 0, + "Unexpected mallctl failure"); + size_t tcache_bytes_before = tcache_bytes + tcache_stashed_bytes; + dallocx(ptr, 0); + + expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)), + 0, "Unexpected mallctl() failure"); + assert_d_eq(mallctl( + "stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL) ".tcache_bytes", + &tcache_bytes, &sz, NULL, 0), 0, "Unexpected mallctl failure"); + assert_d_eq(mallctl( + "stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL) + ".tcache_stashed_bytes", &tcache_stashed_bytes, &sz, NULL, 0), 0, + "Unexpected mallctl failure"); + size_t tcache_bytes_after = tcache_bytes + tcache_stashed_bytes; + assert_zu_eq(tcache_bytes_after - tcache_bytes_before, + usize, "Incorrectly attributed a free"); +} + +TEST_BEGIN(test_stats_tcache_bytes_small) { + test_skip_if(!config_stats); + test_skip_if(!opt_tcache); + test_skip_if(opt_tcache_max < SC_SMALL_MAXCLASS); + + test_tcache_bytes_for_usize(SC_SMALL_MAXCLASS); +} +TEST_END + +TEST_BEGIN(test_stats_tcache_bytes_large) { + test_skip_if(!config_stats); + test_skip_if(!opt_tcache); + test_skip_if(opt_tcache_max < SC_LARGE_MINCLASS); + + test_tcache_bytes_for_usize(SC_LARGE_MINCLASS); +} +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, + test_stats_tcache_bytes_small, + test_stats_tcache_bytes_large); +} |