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initial delay slots

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This commit is contained in:
daan 2019-11-04 11:48:41 -08:00
parent 3d0a1e249f
commit 829fd872f4
9 changed files with 171 additions and 50 deletions
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26
include/mimalloc-types.h
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@ -385,6 +385,19 @@ void _mi_stat_counter_increase(mi_stat_counter_t* stat, size_t amount);
#define mi_heap_stat_decrease(heap,stat,amount) mi_stat_decrease( (heap)->tld->stats.stat, amount)
// ------------------------------------------------------
// Delay slots (to avoid expensive OS calls)
// ------------------------------------------------------
typedef int64_t mi_msecs_t;
typedef struct mi_delay_slot_s {
mi_msecs_t expire;
uint8_t* addr;
size_t size;
} mi_delay_slot_t;
#define MI_RESET_DELAY_SLOTS (128)
// ------------------------------------------------------
// Thread Local data
// ------------------------------------------------------
@ -395,6 +408,12 @@ typedef struct mi_segment_queue_s {
mi_segment_t* last;
} mi_segment_queue_t;
// OS thread local data
typedef struct mi_os_tld_s {
size_t region_idx; // start point for next allocation
mi_stats_t* stats; // points to tld stats
mi_delay_slot_t reset_delay[MI_RESET_DELAY_SLOTS];
} mi_os_tld_t;
// Segments thread local data
typedef struct mi_segments_tld_s {
@ -408,14 +427,9 @@ typedef struct mi_segments_tld_s {
size_t cache_size; // total size of all segments in the cache
mi_segment_t* cache; // (small) cache of segments
mi_stats_t* stats; // points to tld stats
mi_os_tld_t* os; // points to os stats
} mi_segments_tld_t;
// OS thread local data
typedef struct mi_os_tld_s {
size_t region_idx; // start point for next allocation
mi_stats_t* stats; // points to tld stats
} mi_os_tld_t;
// Thread local data
struct mi_tld_s {
unsigned long long heartbeat; // monotonic heartbeat count