229994a204
By carefully force-inlining the division constants and the operation sum count, we can eliminate redundant operations in the arena-level dalloc function. Do so.
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
#include "test/jemalloc_test.h"
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#define INVALID_ARENA_IND ((1U << MALLOCX_ARENA_BITS) - 1)
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TEST_BEGIN(test_arena_slab_regind) {
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szind_t binind;
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for (binind = 0; binind < SC_NBINS; binind++) {
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size_t regind;
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edata_t slab;
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const bin_info_t *bin_info = &bin_infos[binind];
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edata_init(&slab, INVALID_ARENA_IND,
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mallocx(bin_info->slab_size, MALLOCX_LG_ALIGN(LG_PAGE)),
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bin_info->slab_size, true,
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binind, 0, extent_state_active, false, true, EXTENT_PAI_PAC,
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EXTENT_NOT_HEAD);
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expect_ptr_not_null(edata_addr_get(&slab),
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"Unexpected malloc() failure");
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arena_dalloc_bin_locked_info_t dalloc_info;
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arena_dalloc_bin_locked_begin(&dalloc_info, binind);
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for (regind = 0; regind < bin_info->nregs; regind++) {
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void *reg = (void *)((uintptr_t)edata_addr_get(&slab) +
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(bin_info->reg_size * regind));
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expect_zu_eq(arena_slab_regind(&dalloc_info, binind,
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&slab, reg),
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regind,
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"Incorrect region index computed for size %zu",
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bin_info->reg_size);
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}
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free(edata_addr_get(&slab));
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}
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}
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TEST_END
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int
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main(void) {
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return test(
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test_arena_slab_regind);
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}
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