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Refactor chunk map.

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Break the chunk map into two separate arrays, in order to improve cache
locality. This is related to issue #23.
This commit is contained in:
Qinfan Wu
2014-08-29 13:34:40 -07:00
committed by Jason Evans
parent f34f6037e8
commit ff6a31d3b9
7 changed files with 186 additions and 149 deletions
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11
src/tcache.c
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@@ -118,10 +118,10 @@ tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem,
if (chunk->arena == arena) {
size_t pageind = ((uintptr_t)ptr -
(uintptr_t)chunk) >> LG_PAGE;
arena_chunk_map_t *mapelm =
arena_mapp_get(chunk, pageind);
arena_chunk_map_bits_t *bitselm =
arena_bitselm_get(chunk, pageind);
arena_dalloc_bin_locked(arena, chunk, ptr,
mapelm);
bitselm);
} else {
/*
* This object was allocated via a different
@@ -393,9 +393,10 @@ tcache_destroy(tcache_t *tcache)
arena_t *arena = chunk->arena;
size_t pageind = ((uintptr_t)tcache - (uintptr_t)chunk) >>
LG_PAGE;
arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind);
arena_chunk_map_bits_t *bitselm = arena_bitselm_get(chunk,
pageind);
arena_dalloc_bin(arena, chunk, tcache, pageind, mapelm);
arena_dalloc_bin(arena, chunk, tcache, pageind, bitselm);
} else if (tcache_size <= tcache_maxclass) {
arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache);
arena_t *arena = chunk->arena;