diff options
Diffstat (limited to 'deps/jemalloc/test/unit/pack.c')
-rw-r--r-- | deps/jemalloc/test/unit/pack.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/deps/jemalloc/test/unit/pack.c b/deps/jemalloc/test/unit/pack.c deleted file mode 100644 index fc188b003..000000000 --- a/deps/jemalloc/test/unit/pack.c +++ /dev/null @@ -1,166 +0,0 @@ -#include "test/jemalloc_test.h" - -/* - * Size class that is a divisor of the page size, ideally 4+ regions per run. - */ -#if LG_PAGE <= 14 -#define SZ (ZU(1) << (LG_PAGE - 2)) -#else -#define SZ ZU(4096) -#endif - -/* - * Number of slabs to consume at high water mark. Should be at least 2 so that - * if mmap()ed memory grows downward, downward growth of mmap()ed memory is - * tested. - */ -#define NSLABS 8 - -static unsigned -binind_compute(void) { - size_t sz; - unsigned nbins, i; - - sz = sizeof(nbins); - assert_d_eq(mallctl("arenas.nbins", (void *)&nbins, &sz, NULL, 0), 0, - "Unexpected mallctl failure"); - - for (i = 0; i < nbins; i++) { - size_t mib[4]; - size_t miblen = sizeof(mib)/sizeof(size_t); - size_t size; - - assert_d_eq(mallctlnametomib("arenas.bin.0.size", mib, - &miblen), 0, "Unexpected mallctlnametomb failure"); - mib[2] = (size_t)i; - - sz = sizeof(size); - assert_d_eq(mallctlbymib(mib, miblen, (void *)&size, &sz, NULL, - 0), 0, "Unexpected mallctlbymib failure"); - if (size == SZ) { - return i; - } - } - - test_fail("Unable to compute nregs_per_run"); - return 0; -} - -static size_t -nregs_per_run_compute(void) { - uint32_t nregs; - size_t sz; - unsigned binind = binind_compute(); - size_t mib[4]; - size_t miblen = sizeof(mib)/sizeof(size_t); - - assert_d_eq(mallctlnametomib("arenas.bin.0.nregs", mib, &miblen), 0, - "Unexpected mallctlnametomb failure"); - mib[2] = (size_t)binind; - sz = sizeof(nregs); - assert_d_eq(mallctlbymib(mib, miblen, (void *)&nregs, &sz, NULL, - 0), 0, "Unexpected mallctlbymib failure"); - return nregs; -} - -static unsigned -arenas_create_mallctl(void) { - unsigned arena_ind; - size_t sz; - - sz = sizeof(arena_ind); - assert_d_eq(mallctl("arenas.create", (void *)&arena_ind, &sz, NULL, 0), - 0, "Error in arenas.create"); - - return arena_ind; -} - -static void -arena_reset_mallctl(unsigned arena_ind) { - size_t mib[3]; - size_t miblen = sizeof(mib)/sizeof(size_t); - - assert_d_eq(mallctlnametomib("arena.0.reset", mib, &miblen), 0, - "Unexpected mallctlnametomib() failure"); - mib[1] = (size_t)arena_ind; - assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0, - "Unexpected mallctlbymib() failure"); -} - -TEST_BEGIN(test_pack) { - bool prof_enabled; - size_t sz = sizeof(prof_enabled); - if (mallctl("opt.prof", (void *)&prof_enabled, &sz, NULL, 0) == 0) { - test_skip_if(prof_enabled); - } - - unsigned arena_ind = arenas_create_mallctl(); - size_t nregs_per_run = nregs_per_run_compute(); - size_t nregs = nregs_per_run * NSLABS; - VARIABLE_ARRAY(void *, ptrs, nregs); - size_t i, j, offset; - - /* Fill matrix. */ - for (i = offset = 0; i < NSLABS; i++) { - for (j = 0; j < nregs_per_run; j++) { - void *p = mallocx(SZ, MALLOCX_ARENA(arena_ind) | - MALLOCX_TCACHE_NONE); - assert_ptr_not_null(p, - "Unexpected mallocx(%zu, MALLOCX_ARENA(%u) |" - " MALLOCX_TCACHE_NONE) failure, run=%zu, reg=%zu", - SZ, arena_ind, i, j); - ptrs[(i * nregs_per_run) + j] = p; - } - } - - /* - * Free all but one region of each run, but rotate which region is - * preserved, so that subsequent allocations exercise the within-run - * layout policy. - */ - offset = 0; - for (i = offset = 0; - i < NSLABS; - i++, offset = (offset + 1) % nregs_per_run) { - for (j = 0; j < nregs_per_run; j++) { - void *p = ptrs[(i * nregs_per_run) + j]; - if (offset == j) { - continue; - } - dallocx(p, MALLOCX_ARENA(arena_ind) | - MALLOCX_TCACHE_NONE); - } - } - - /* - * Logically refill matrix, skipping preserved regions and verifying - * that the matrix is unmodified. - */ - offset = 0; - for (i = offset = 0; - i < NSLABS; - i++, offset = (offset + 1) % nregs_per_run) { - for (j = 0; j < nregs_per_run; j++) { - void *p; - - if (offset == j) { - continue; - } - p = mallocx(SZ, MALLOCX_ARENA(arena_ind) | - MALLOCX_TCACHE_NONE); - assert_ptr_eq(p, ptrs[(i * nregs_per_run) + j], - "Unexpected refill discrepancy, run=%zu, reg=%zu\n", - i, j); - } - } - - /* Clean up. */ - arena_reset_mallctl(arena_ind); -} -TEST_END - -int -main(void) { - return test( - test_pack); -} |