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Add opt.bin_shards to specify number of bin shards.

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The option uses the same format as "slab_sizes" to specify number of shards for
each bin size.
This commit is contained in:
Qi Wang 2018-11-20 13:51:32 -08:00 • committed by Qi Wang
parent 37b8913925
commit 3f9f2833f6
5 changed files with 81 additions and 31 deletions
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10
include/jemalloc/internal/bin.h
View file

@ -8,9 +8,7 @@
#include "jemalloc/internal/sc.h"
#define BIN_SHARDS_MAX (1 << EXTENT_BITS_BINSHARD_WIDTH)
extern unsigned opt_bin_shard_maxszind;
extern unsigned opt_n_bin_shards;
#define N_BIN_SHARDS_DEFAULT 1
/*
* A bin contains a set of extents that are currently being used for slab
@ -93,8 +91,10 @@ struct bins_s {
bin_t *bin_shards;
};
void bin_infos_init(sc_data_t *sc_data, bin_info_t bin_infos[SC_NBINS]);
void bin_boot();
void bin_shard_sizes_boot(unsigned bin_shards[SC_NBINS]);
bool bin_update_shard_size(unsigned bin_shards[SC_NBINS], size_t start_size,
size_t end_size, size_t nshards);
void bin_boot(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS]);
/* Initializes a bin to empty. Returns true on error. */
bool bin_init(bin_t *bin);

4
include/jemalloc/internal/extent_structs.h
View file

@ -128,10 +128,6 @@ struct extent_s {
#define EXTENT_BITS_BINSHARD_SHIFT (EXTENT_BITS_NFREE_WIDTH + EXTENT_BITS_NFREE_SHIFT)
#define EXTENT_BITS_BINSHARD_MASK MASK(EXTENT_BITS_BINSHARD_WIDTH, EXTENT_BITS_BINSHARD_SHIFT)
/* Will make dynamic options. */
#define OPT_N_BIN_SHARDS (1)
#define OPT_BIN_SHARD_MAXSZIND (0)
#define EXTENT_BITS_SN_SHIFT (EXTENT_BITS_BINSHARD_WIDTH + EXTENT_BITS_BINSHARD_SHIFT)
#define EXTENT_BITS_SN_MASK (UINT64_MAX << EXTENT_BITS_SN_SHIFT)