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Refactor the tcache initiailization

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1. Pre-generate all default tcache ncached_max in tcache_boot;
2. Add getters returning default ncached_max and ncached_max_set;
3. Refactor tcache init so that it is always init with a given setting.
This commit is contained in:
guangli-dai
2023-10-17 20:17:42 -07:00
committed by Qi Wang
parent 8a22d10b83
commit 6fb3b6a8e4
7 changed files with 75 additions and 61 deletions
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10
include/jemalloc/internal/cache_bin.h
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@@ -719,8 +719,8 @@ void cache_bin_info_init(cache_bin_info_t *bin_info,
* Given an array of initialized cache_bin_info_ts, determine how big an
* allocation is required to initialize a full set of cache_bin_ts.
*/
void cache_bin_info_compute_alloc(cache_bin_info_t *infos, szind_t ninfos,
size_t *size, size_t *alignment);
void cache_bin_info_compute_alloc(const cache_bin_info_t *infos,
szind_t ninfos, size_t *size, size_t *alignment);
/*
* Actually initialize some cache bins. Callers should allocate the backing
@@ -729,11 +729,11 @@ void cache_bin_info_compute_alloc(cache_bin_info_t *infos, szind_t ninfos,
* cache_bin_postincrement. *alloc_cur will then point immediately past the end
* of the allocation.
*/
void cache_bin_preincrement(cache_bin_info_t *infos, szind_t ninfos,
void cache_bin_preincrement(const cache_bin_info_t *infos, szind_t ninfos,
void *alloc, size_t *cur_offset);
void cache_bin_postincrement(void *alloc, size_t *cur_offset);
void cache_bin_init(cache_bin_t *bin, cache_bin_info_t *info, void *alloc,
size_t *cur_offset);
void cache_bin_init(cache_bin_t *bin, const cache_bin_info_t *info,
void *alloc, size_t *cur_offset);
void cache_bin_init_disabled(cache_bin_t *bin, cache_bin_sz_t ncached_max);
bool cache_bin_stack_use_thp(void);

10
include/jemalloc/internal/tcache_externs.h
View File

@@ -35,11 +35,6 @@ extern unsigned global_do_not_change_tcache_nbins;
*/
extern size_t global_do_not_change_tcache_maxclass;
/* Default bin info for each bin. */
extern cache_bin_info_t opt_tcache_ncached_max[TCACHE_NBINS_MAX];
/* Records whether a bin's info is specified by malloc_conf. */
extern bool opt_tcache_ncached_max_set[TCACHE_NBINS_MAX];
/*
* Explicit tcaches, managed via the tcache.{create,flush,destroy} mallctls and
* usable via the MALLOCX_TCACHE() flag. The automatic per thread tcaches are
@@ -60,9 +55,8 @@ void tcache_bin_flush_large(tsd_t *tsd, tcache_t *tcache,
cache_bin_t *cache_bin, szind_t binind, unsigned rem);
void tcache_bin_flush_stashed(tsd_t *tsd, tcache_t *tcache,
cache_bin_t *cache_bin, szind_t binind, bool is_small);
bool tcache_bin_info_settings_parse(const char *bin_settings_segment_cur,
size_t len_left, cache_bin_info_t tcache_bin_info[TCACHE_NBINS_MAX],
bool bin_info_is_set[TCACHE_NBINS_MAX]);
bool tcache_bin_info_default_init(const char *bin_settings_segment_cur,
size_t len_left);
bool tcache_bins_ncached_max_write(tsd_t *tsd, char *settings, size_t len);
bool tcache_bin_ncached_max_read(tsd_t *tsd, size_t bin_size,
cache_bin_sz_t *ncached_max);