diff options
Diffstat (limited to 'erts/emulator/beam/erl_alloc_util.c')
| -rw-r--r-- | erts/emulator/beam/erl_alloc_util.c | 1542 |
1 files changed, 1211 insertions, 331 deletions
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index 142fcab981..a52298c759 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -71,6 +71,13 @@ #define ALLOC_ZERO_EQ_NULL 0 +#ifndef ERTS_MSEG_FLG_2POW +# define ERTS_MSEG_FLG_2POW 0 +#endif +#ifndef ERTS_MSEG_FLG_NONE +# define ERTS_MSEG_FLG_NONE 0 +#endif + static int atoms_initialized = 0; static int initialized = 0; @@ -293,7 +300,7 @@ MBC after deallocating first block: /* Carriers ... */ -#define ERTS_ALC_CPOOL_DEBUG +/* #define ERTS_ALC_CPOOL_DEBUG */ #if defined(DEBUG) && !defined(ERTS_ALC_CPOOL_DEBUG) # define ERTS_ALC_CPOOL_DEBUG @@ -316,7 +323,56 @@ MBC after deallocating first block: # define ERTS_ALC_CPOOL_ASSERT(A) ((void) 1) #endif +#ifdef ERTS_SMP #define ERTS_ALC_IS_CPOOL_ENABLED(A) ((A)->cpool.util_limit) +#else +#define ERTS_ALC_IS_CPOOL_ENABLED(A) (0) +#endif + +#ifdef ERTS_SMP + +#define ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON 1000 +#define ERTS_ALC_CPOOL_ALLOC_OP_INC 8 +#define ERTS_ALC_CPOOL_FREE_OP_DEC 10 + +#define ERTS_ALC_CPOOL_ALLOC_OP(A) \ +do { \ + if ((A)->cpool.disable_abandon < ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON) { \ + (A)->cpool.disable_abandon += ERTS_ALC_CPOOL_ALLOC_OP_INC; \ + if ((A)->cpool.disable_abandon > ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON) \ + (A)->cpool.disable_abandon = ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON; \ + } \ +} while (0) + + +#if ERTS_ALC_CPOOL_ALLOC_OP_INC >= ERTS_ALC_CPOOL_FREE_OP_DEC +# error "Implementation assume ERTS_ALC_CPOOL_ALLOC_OP_INC < ERTS_ALC_CPOOL_FREE_OP_DEC" +#endif + +#define ERTS_ALC_CPOOL_REALLOC_OP(A) \ +do { \ + if ((A)->cpool.disable_abandon) { \ + (A)->cpool.disable_abandon -= (ERTS_ALC_CPOOL_FREE_OP_DEC \ + - ERTS_ALC_CPOOL_ALLOC_OP_INC); \ + if ((A)->cpool.disable_abandon < 0) \ + (A)->cpool.disable_abandon = 0; \ + } \ +} while (0) + +#define ERTS_ALC_CPOOL_FREE_OP(A) \ +do { \ + if ((A)->cpool.disable_abandon) { \ + (A)->cpool.disable_abandon -= ERTS_ALC_CPOOL_FREE_OP_DEC; \ + if ((A)->cpool.disable_abandon < 0) \ + (A)->cpool.disable_abandon = 0; \ + } \ +} while (0) + +#else +#define ERTS_ALC_CPOOL_ALLOC_OP(A) +#define ERTS_ALC_CPOOL_REALLOC_OP(A) +#define ERTS_ALC_CPOOL_FREE_OP(A) +#endif #define ERTS_CRR_ALCTR_FLG_IN_POOL (((erts_aint_t) 1) << 0) #define ERTS_CRR_ALCTR_FLG_BUSY (((erts_aint_t) 1) << 1) @@ -379,6 +435,7 @@ MBC after deallocating first block: #define CFLG_FORCE_SYS_ALLOC (1 << 3) #define CFLG_FORCE_SIZE (1 << 4) #define CFLG_MAIN_CARRIER (1 << 5) +#define CFLG_NO_CPOOL (1 << 6) #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG static void check_blk_carrier(Allctr_t *, Block_t *); @@ -493,6 +550,21 @@ do { \ DEBUG_CHECK_CARRIER_NO_SZ((AP)); \ } while (0) +#define STAT_MBC_CPOOL_FETCH(AP, CRR) \ +do { \ + UWord csz__ = CARRIER_SZ((CRR)); \ + if (IS_MSEG_CARRIER((CRR))) \ + STAT_MSEG_MBC_ALLOC((AP), csz__); \ + else \ + STAT_SYS_ALLOC_MBC_ALLOC((AP), csz__); \ + (AP)->mbcs.blocks.curr.no += (CRR)->cpool.blocks; \ + if ((AP)->mbcs.blocks.max.no < (AP)->mbcs.blocks.curr.no) \ + (AP)->mbcs.blocks.max.no = (AP)->mbcs.blocks.curr.no; \ + (AP)->mbcs.blocks.curr.size += (CRR)->cpool.blocks_size; \ + if ((AP)->mbcs.blocks.max.size < (AP)->mbcs.blocks.curr.size) \ + (AP)->mbcs.blocks.max.size = (AP)->mbcs.blocks.curr.size; \ +} while (0) + #define STAT_MSEG_MBC_FREE(AP, CSZ) \ do { \ ASSERT((AP)->mbcs.curr.norm.mseg.no > 0); \ @@ -511,7 +583,32 @@ do { \ DEBUG_CHECK_CARRIER_NO_SZ((AP)); \ } while (0) -#define STAT_MBC_BLK_ALLOC(AP, BSZ) \ +#define STAT_MBC_CPOOL_INSERT(AP, CRR) \ +do { \ + UWord csz__ = CARRIER_SZ((CRR)); \ + if (IS_MSEG_CARRIER((CRR))) \ + STAT_MSEG_MBC_FREE((AP), csz__); \ + else \ + STAT_SYS_ALLOC_MBC_FREE((AP), csz__); \ + ERTS_ALC_CPOOL_ASSERT((AP)->mbcs.blocks.curr.no \ + >= (CRR)->cpool.blocks); \ + (AP)->mbcs.blocks.curr.no -= (CRR)->cpool.blocks; \ + ERTS_ALC_CPOOL_ASSERT((AP)->mbcs.blocks.curr.size \ + >= (CRR)->cpool.blocks_size); \ + (AP)->mbcs.blocks.curr.size -= (CRR)->cpool.blocks_size; \ +} while (0) + +#ifdef ERTS_SMP +#define STAT_MBC_BLK_ALLOC_CRR(CRR, BSZ) \ +do { \ + (CRR)->cpool.blocks++; \ + (CRR)->cpool.blocks_size += (BSZ); \ +} while (0) +#else +#define STAT_MBC_BLK_ALLOC_CRR(CRR, BSZ) ((void) (CRR)) /* Get rid of warning */ +#endif + +#define STAT_MBC_BLK_ALLOC(AP, CRR, BSZ, FLGS) \ do { \ CarriersStats_t *cstats__ = &(AP)->mbcs; \ cstats__->blocks.curr.no++; \ @@ -520,15 +617,54 @@ do { \ cstats__->blocks.curr.size += (BSZ); \ if (cstats__->blocks.max.size < cstats__->blocks.curr.size) \ cstats__->blocks.max.size = cstats__->blocks.curr.size; \ + STAT_MBC_BLK_ALLOC_CRR((CRR), (BSZ)); \ } while (0) -#define STAT_MBC_BLK_FREE(AP, BSZ) \ +static ERTS_INLINE int +stat_cpool_mbc_blk_free(Allctr_t *allctr, + Carrier_t *crr, + Carrier_t **busy_pcrr_pp, + UWord blksz) +{ +#ifdef ERTS_SMP + + ERTS_ALC_CPOOL_ASSERT(crr->cpool.blocks > 0); + crr->cpool.blocks--; + ERTS_ALC_CPOOL_ASSERT(crr->cpool.blocks_size >= blksz); + crr->cpool.blocks_size -= blksz; + + if (!busy_pcrr_pp || !*busy_pcrr_pp) + return 0; + + ERTS_ALC_CPOOL_ASSERT(crr == *busy_pcrr_pp); + +#ifdef ERTS_ALC_CPOOL_DEBUG + ERTS_ALC_CPOOL_ASSERT( + erts_atomic_dec_read_nob(&allctr->cpool.stat.no_blocks) >= 0); + ERTS_ALC_CPOOL_ASSERT( + erts_atomic_add_read_nob(&allctr->cpool.stat.blocks_size, + -((erts_aint_t) blksz)) >= 0); +#else + erts_atomic_dec_nob(&allctr->cpool.stat.no_blocks); + erts_atomic_add_nob(&allctr->cpool.stat.blocks_size, + -((erts_aint_t) blksz)); +#endif + + return 1; +#else + return 0; +#endif +} + +#define STAT_MBC_BLK_FREE(AP, CRR, BPCRRPP, BSZ, FLGS) \ do { \ - CarriersStats_t *cstats__ = &(AP)->mbcs; \ - ASSERT(cstats__->blocks.curr.no > 0); \ - cstats__->blocks.curr.no--; \ - ASSERT(cstats__->blocks.curr.size >= (BSZ)); \ - cstats__->blocks.curr.size -= (BSZ); \ + if (!stat_cpool_mbc_blk_free((AP), (CRR), (BPCRRPP), (BSZ))) { \ + CarriersStats_t *cstats__ = &(AP)->mbcs; \ + ASSERT(cstats__->blocks.curr.no > 0); \ + cstats__->blocks.curr.no--; \ + ASSERT(cstats__->blocks.curr.size >= (BSZ)); \ + cstats__->blocks.curr.size -= (BSZ); \ + } \ } while (0) /* Debug stuff... */ @@ -579,12 +715,12 @@ do { \ #define ERTS_ALCU_DBG_CHK_THR_ACCESS(A) #endif - static void make_name_atoms(Allctr_t *allctr); static Block_t *create_carrier(Allctr_t *, Uint, UWord); -static void destroy_carrier(Allctr_t *, Block_t *); -static void mbc_free(Allctr_t *allctr, void *p); +static void destroy_carrier(Allctr_t *, Block_t *, Carrier_t **); +static void mbc_free(Allctr_t *allctr, void *p, Carrier_t **busy_pcrr_pp); +static void dealloc_block(Allctr_t *, void *, int); /* internal data... */ @@ -776,8 +912,35 @@ unlink_carrier(CarrierList_t *cl, Carrier_t *crr) } } -static Block_t *create_carrier(Allctr_t *, Uint, UWord); -static void destroy_carrier(Allctr_t *, Block_t *); +#ifdef ERTS_SMP + +static ERTS_INLINE void +clear_busy_pool_carrier(Allctr_t *allctr, Carrier_t *crr) +{ + if (crr) { + erts_aint_t max_size; + erts_aint_t new_val; + + max_size = (erts_aint_t) allctr->largest_fblk_in_mbc(allctr, crr); + erts_atomic_set_nob(&crr->cpool.max_size, max_size); + + new_val = (((erts_aint_t) allctr)|ERTS_CRR_ALCTR_FLG_IN_POOL); + +#ifdef ERTS_ALC_CPOOL_DEBUG + { + erts_aint_t old_val = new_val|ERTS_CRR_ALCTR_FLG_BUSY; + + ERTS_ALC_CPOOL_ASSERT(old_val + == erts_smp_atomic_xchg_relb(&crr->allctr, + new_val)); + } +#else + erts_smp_atomic_set_relb(&crr->allctr, new_val); +#endif + } +} + +#endif #if 0 #define ERTS_DBG_CHK_FIX_LIST(A, FIX, IX, B) \ @@ -799,13 +962,154 @@ chk_fix_list(Allctr_t *allctr, ErtsAlcFixList_t *fix, int ix, int before) #define ERTS_DBG_CHK_FIX_LIST(A, FIX, IX, B) #endif -erts_aint32_t -erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) +static void *mbc_alloc(Allctr_t *allctr, Uint size); + +#ifdef ERTS_SMP +typedef struct { + ErtsAllctrDDBlock_t ddblock__; /* must be first */ + ErtsAlcType_t fix_type; +} ErtsAllctrFixDDBlock_t; +#endif + +static ERTS_INLINE void +dealloc_fix_block(Allctr_t *allctr, + ErtsAlcType_t type, + void *ptr, + int dec_cc_on_redirect) +{ +#ifdef ERTS_SMP + /* May be redirected... */ + ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type = type; +#endif + dealloc_block(allctr, ptr, dec_cc_on_redirect); +} + +static ERTS_INLINE void +sched_fix_shrink(Allctr_t *allctr, int on) +{ + if (on && !allctr->fix_shrink_scheduled) { + allctr->fix_shrink_scheduled = 1; + erts_set_aux_work_timeout(allctr->ix, + (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM + | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), + 1); + } + else if (!on && allctr->fix_shrink_scheduled) { + allctr->fix_shrink_scheduled = 0; + erts_set_aux_work_timeout(allctr->ix, + (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM + | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), + 0); + } +} + +static ERTS_INLINE void +fix_cpool_check_shrink(Allctr_t *allctr, + ErtsAlcType_t type, + ErtsAlcFixList_t *fix, + Carrier_t **busy_pcrr_pp) +{ + if (fix->u.cpool.shrink_list > 0) { + if (fix->list_size == 0) + fix->u.cpool.shrink_list = 0; + else { + void *p; +#ifdef ERTS_SMP + if (busy_pcrr_pp) { + clear_busy_pool_carrier(allctr, *busy_pcrr_pp); + *busy_pcrr_pp = NULL; + } +#endif + fix->u.cpool.shrink_list--; + p = fix->list; + fix->list = *((void **) p); + fix->list_size--; + if (fix->u.cpool.min_list_size > fix->list_size) + fix->u.cpool.min_list_size = fix->list_size; + + fix->u.cpool.allocated--; + dealloc_fix_block(allctr, type, p, 0); + } + } +} + +static ERTS_INLINE void * +fix_cpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size) +{ + void *res; + ErtsAlcFixList_t *fix; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + + res = fix->list; + if (res) { + fix->list = *((void **) res); + fix->list_size--; + if (fix->u.cpool.min_list_size > fix->list_size) + fix->u.cpool.min_list_size = fix->list_size; + fix->u.cpool.used++; + fix_cpool_check_shrink(allctr, type, fix, NULL); + return res; + } + if (size < 2*sizeof(UWord)) + size += sizeof(UWord); + if (size >= allctr->sbc_threshold) { + Block_t *blk; + blk = create_carrier(allctr, size, CFLG_SBC); + res = blk ? BLK2UMEM(blk) : NULL; + } + else + res = mbc_alloc(allctr, size); + if (res) { + fix->u.cpool.used++; + fix->u.cpool.allocated++; + } + return res; +} + +static ERTS_INLINE void +fix_cpool_free(Allctr_t *allctr, + ErtsAlcType_t type, + void *p, + Carrier_t **busy_pcrr_pp) +{ + ErtsAlcFixList_t *fix; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + + fix->u.cpool.used--; + + if ((!busy_pcrr_pp || !*busy_pcrr_pp) + && !fix->u.cpool.shrink_list + && fix->list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { + *((void **) p) = fix->list; + fix->list = p; + fix->list_size++; + sched_fix_shrink(allctr, 1); + } + else { + Block_t *blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, busy_pcrr_pp); + fix->u.cpool.allocated--; + fix_cpool_check_shrink(allctr, type, fix, busy_pcrr_pp); + } +} + +static ERTS_INLINE erts_aint32_t +fix_cpool_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) { int all_empty = 1; erts_aint32_t res = 0; int ix, o; - ErtsAlcFixList_t *fix = allctr->fix; int flush = flgs == 0; #ifdef USE_THREADS @@ -814,56 +1118,204 @@ erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) #endif for (ix = 0; ix < ERTS_ALC_NO_FIXED_SIZES; ix++) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + ErtsAlcType_t type; ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - if (flgs & ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM) { - fix[ix].limit = fix[ix].max_used; - if (fix[ix].limit < fix[ix].used) - fix[ix].limit = fix[ix].used; - fix[ix].max_used = fix[ix].used; - ASSERT(fix[ix].limit >= 0); - - } - if (flush) { - fix[ix].limit = 0; - fix[ix].max_used = fix[ix].used; - ASSERT(fix[ix].limit >= 0); + if (flush) + fix->u.cpool.shrink_list = fix->list_size; + else if (flgs & ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM) { + fix->u.cpool.shrink_list = fix->u.cpool.min_list_size; + fix->u.cpool.min_list_size = fix->list_size; } + type = (ErtsAlcType_t) (ix + ERTS_ALC_N_MIN_A_FIXED_SIZE); for (o = 0; o < ERTS_ALC_FIX_MAX_SHRINK_OPS || flush; o++) { - Block_t *blk; void *ptr; - if (!flush && fix[ix].limit >= fix[ix].allocated) + if (fix->u.cpool.shrink_list == 0) break; - if (fix[ix].list_size == 0) + if (fix->list_size == 0) { + fix->u.cpool.shrink_list = 0; break; - ptr = fix[ix].list; - fix[ix].list = *((void **) ptr); - fix[ix].list_size--; + } + ptr = fix->list; + fix->list = *((void **) ptr); + fix->list_size--; + fix->u.cpool.shrink_list--; + fix->u.cpool.allocated--; + dealloc_fix_block(allctr, type, ptr, 0); + } + if (fix->u.cpool.min_list_size > fix->list_size) + fix->u.cpool.min_list_size = fix->list_size; + if (fix->list_size != 0) { + if (fix->u.cpool.shrink_list > 0) + res |= ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC; + all_empty = 0; + } + } + + if (all_empty) + sched_fix_shrink(allctr, 0); + +#ifdef USE_THREADS + if (allctr->thread_safe) + erts_mtx_unlock(&allctr->mutex); +#endif - blk = UMEM2BLK(ptr); + return res; +} + +static ERTS_INLINE void * +fix_nocpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size) +{ + ErtsAlcFixList_t *fix; + void *res; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); + fix->u.nocpool.used++; + res = fix->list; + if (res) { + fix->list_size--; + fix->list = *((void **) res); + if (fix->list && fix->u.nocpool.allocated > fix->u.nocpool.limit) { + Block_t *blk; + void *p = fix->list; + fix->list = *((void **) p); + fix->list_size--; + blk = UMEM2BLK(p); if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); + destroy_carrier(allctr, blk, NULL); else - mbc_free(allctr, ptr); + mbc_free(allctr, p, NULL); + fix->u.nocpool.allocated--; + } + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); + return res; + } + if (size < 2*sizeof(UWord)) + size += sizeof(UWord); + if (fix->u.nocpool.limit < fix->u.nocpool.used) + fix->u.nocpool.limit = fix->u.nocpool.used; + if (fix->u.nocpool.max_used < fix->u.nocpool.used) + fix->u.nocpool.max_used = fix->u.nocpool.used; + fix->u.nocpool.allocated++; + + if (size >= allctr->sbc_threshold) { + Block_t *blk; + blk = create_carrier(allctr, size, CFLG_SBC); + res = blk ? BLK2UMEM(blk) : NULL; + } + else + res = mbc_alloc(allctr, size); + + if (!res) { + fix->u.nocpool.allocated--; + fix->u.nocpool.used--; + } + return res; +} + +static ERTS_INLINE void +fix_nocpool_free(Allctr_t *allctr, + ErtsAlcType_t type, + void *p) +{ + Block_t *blk; + ErtsAlcFixList_t *fix; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); + fix->u.nocpool.used--; + if (fix->u.nocpool.allocated < fix->u.nocpool.limit + && fix->list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { + *((void **) p) = fix->list; + fix->list = p; + fix->list_size++; + sched_fix_shrink(allctr, 1); + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); + return; + } + fix->u.nocpool.allocated--; + if (fix->list && fix->u.nocpool.allocated > fix->u.nocpool.limit) { + blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, NULL); + p = fix->list; + fix->list = *((void **) p); + fix->list_size--; + fix->u.nocpool.allocated--; + } + + blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, NULL); + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); +} - fix[ix].allocated--; +static ERTS_INLINE erts_aint32_t +fix_nocpool_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) +{ + int all_empty = 1; + erts_aint32_t res = 0; + int ix, o; + int flush = flgs == 0; + +#ifdef USE_THREADS + if (allctr->thread_safe) + erts_mtx_lock(&allctr->mutex); +#endif + + for (ix = 0; ix < ERTS_ALC_NO_FIXED_SIZES; ix++) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); + if (flgs & ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM) { + fix->u.nocpool.limit = fix->u.nocpool.max_used; + if (fix->u.nocpool.limit < fix->u.nocpool.used) + fix->u.nocpool.limit = fix->u.nocpool.used; + fix->u.nocpool.max_used = fix->u.nocpool.used; + ASSERT(fix->u.nocpool.limit >= 0); + + } + if (flush) { + fix->u.nocpool.limit = 0; + fix->u.nocpool.max_used = fix->u.nocpool.used; + ASSERT(fix->u.nocpool.limit >= 0); + } + for (o = 0; o < ERTS_ALC_FIX_MAX_SHRINK_OPS || flush; o++) { + void *ptr; + + if (!flush && fix->u.nocpool.limit >= fix->u.nocpool.allocated) + break; + if (fix->list_size == 0) + break; + ptr = fix->list; + fix->list = *((void **) ptr); + fix->list_size--; + dealloc_block(allctr, ptr, 0); + fix->u.nocpool.allocated--; } - if (fix[ix].list_size != 0) { - if (fix[ix].limit < fix[ix].allocated) + if (fix->list_size != 0) { + if (fix->u.nocpool.limit < fix->u.nocpool.allocated) res |= ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC; all_empty = 0; } ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); } - if (all_empty && allctr->fix_shrink_scheduled) { - allctr->fix_shrink_scheduled = 0; - erts_set_aux_work_timeout(allctr->ix, - (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM - | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), - 0); - } + if (all_empty) + sched_fix_shrink(allctr, 0); #ifdef USE_THREADS if (allctr->thread_safe) @@ -873,13 +1325,18 @@ erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) return res; } -#ifdef ERTS_SMP +erts_aint32_t +erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) +{ + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + return fix_cpool_alloc_shrink(allctr, flgs); + else + return fix_nocpool_alloc_shrink(allctr, flgs); +} -typedef struct { - ErtsAllctrDDBlock_t ddblock__; /* must be first */ - ErtsAlcType_t fix_type; -}ErtsAllctrFixDDBlock_t; +static void dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, Uint mseg_flags); +#ifdef ERTS_SMP static ERTS_INLINE Allctr_t* get_pref_allctr(void *extra) @@ -895,6 +1352,9 @@ get_pref_allctr(void *extra) return tspec->allctr[pref_ix]; } +#define ERTS_ALC_TS_PREF_LOCK_IF_USED (1) +#define ERTS_ALC_TS_PREF_LOCK_NO (0) + /* SMP note: * get_used_allctr() must be safe WITHOUT locking the allocator while * concurrent threads may be updating adjacent blocks. @@ -903,11 +1363,15 @@ get_pref_allctr(void *extra) * the "PREV_FREE" flag bit. */ static ERTS_INLINE Allctr_t* -get_used_allctr(Allctr_t *pref_allctr, void *extra, void *p, UWord *sizep) +get_used_allctr(Allctr_t *pref_allctr, int pref_lock, void *p, UWord *sizep, + Carrier_t **busy_pcrr_pp) { Block_t* blk = UMEM2BLK(p); - Carrier_t* crr; + Carrier_t *crr; erts_aint_t iallctr; + Allctr_t *used_allctr; + + *busy_pcrr_pp = NULL; if (IS_SBC_BLK(blk)) { crr = BLK_TO_SBC(blk); @@ -917,14 +1381,67 @@ get_used_allctr(Allctr_t *pref_allctr, void *extra, void *p, UWord *sizep) } else { crr = ABLK_TO_MBC(blk); + if (sizep) *sizep = MBC_ABLK_SZ(blk) - ABLK_HDR_SZ; if (!ERTS_ALC_IS_CPOOL_ENABLED(pref_allctr)) iallctr = erts_smp_atomic_read_dirty(&crr->allctr); - else + else { + int locked_pref_allctr = 0; iallctr = erts_smp_atomic_read_ddrb(&crr->allctr); + + if (ERTS_ALC_TS_PREF_LOCK_IF_USED == pref_lock + && pref_allctr->thread_safe) { + used_allctr = (Allctr_t *) (iallctr & ~FLG_MASK); + if (pref_allctr == used_allctr) { + erts_mtx_lock(&pref_allctr->mutex); + locked_pref_allctr = 1; + } + } + + while ((iallctr & ((~FLG_MASK)|ERTS_CRR_ALCTR_FLG_IN_POOL)) + == (((erts_aint_t) pref_allctr)|ERTS_CRR_ALCTR_FLG_IN_POOL)) { + erts_aint_t act; + + ERTS_ALC_CPOOL_ASSERT(!(iallctr & ERTS_CRR_ALCTR_FLG_BUSY)); + act = erts_smp_atomic_cmpxchg_ddrb(&crr->allctr, + iallctr|ERTS_CRR_ALCTR_FLG_BUSY, + iallctr); + if (act == iallctr) { + *busy_pcrr_pp = crr; + break; + } + iallctr = act; + } + + used_allctr = (Allctr_t *) (iallctr & ~FLG_MASK); + + if (ERTS_ALC_TS_PREF_LOCK_IF_USED == pref_lock) { + if (locked_pref_allctr && used_allctr != pref_allctr) { + /* Was taken out of pool; now owned by someone else */ + erts_mtx_unlock(&pref_allctr->mutex); + } + } + + ERTS_ALC_CPOOL_ASSERT( + (((iallctr & ~FLG_MASK) == (erts_aint_t) pref_allctr) + ? (((iallctr & FLG_MASK) == ERTS_CRR_ALCTR_FLG_IN_POOL) + || ((iallctr & FLG_MASK) == 0)) + : 1)); + + return used_allctr; + } } - return (Allctr_t *) (iallctr & ~FLG_MASK); + + used_allctr = (Allctr_t *) (iallctr & ~FLG_MASK); + + if (ERTS_ALC_TS_PREF_LOCK_IF_USED == pref_lock + && used_allctr == pref_allctr + && pref_allctr->thread_safe) { + erts_mtx_lock(&pref_allctr->mutex); + } + + return used_allctr; } static void @@ -1019,7 +1536,7 @@ check_insert_marker(ErtsAllctrDDQueue_t *ddq, erts_aint_t ilast) } static ERTS_INLINE int -ddq_enqueue(ErtsAlcType_t type, ErtsAllctrDDQueue_t *ddq, void *ptr, int cinit) +ddq_enqueue(ErtsAllctrDDQueue_t *ddq, void *ptr, int cinit) { int last_elem; int um_refc_ix = 0; @@ -1120,6 +1637,59 @@ store_earliest_thr_prgr(ErtsThrPrgrVal *prev_val, ErtsAllctrDDQueue_t *ddq) } } +static void +check_pending_dealloc_carrier(Allctr_t *allctr, + int *need_thr_progress, + ErtsThrPrgrVal *thr_prgr_p, + int *need_more_work); + +static void +handle_delayed_fix_dealloc(Allctr_t *allctr, void *ptr) +{ + ErtsAlcType_t type; + + type = ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + fix_nocpool_free(allctr, type, ptr); + else { + Block_t *blk = UMEM2BLK(ptr); + Carrier_t *busy_pcrr_p; + Allctr_t *used_allctr; + + if (IS_SBC_BLK(blk)) { + busy_pcrr_p = NULL; + goto doit; + } + + used_allctr = get_used_allctr(allctr, ERTS_ALC_TS_PREF_LOCK_NO, ptr, + NULL, &busy_pcrr_p); + if (used_allctr == allctr) { + doit: + fix_cpool_free(allctr, type, ptr, &busy_pcrr_p); + clear_busy_pool_carrier(allctr, busy_pcrr_p); + } + else { + /* Carrier migrated; need to redirect block to new owner... */ + int cinit = used_allctr->dd.ix - allctr->dd.ix; + + ERTS_ALC_CPOOL_ASSERT(!busy_pcrr_p); + + DEC_CC(allctr->calls.this_free); + + ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type = type; + if (ddq_enqueue(&used_allctr->dd.q, ptr, cinit)) + erts_alloc_notify_delayed_dealloc(used_allctr->ix); + } + } +} + +static void +schedule_dealloc_carrier(Allctr_t *allctr, Carrier_t *crr); + static ERTS_INLINE int handle_delayed_dealloc(Allctr_t *allctr, int allctr_locked, @@ -1151,7 +1721,6 @@ handle_delayed_dealloc(Allctr_t *allctr, while (1) { Block_t *blk; void *ptr; - int ix; if (use_limit && ++ops > ops_limit) { if (ddq->head.first != ddq->head.unref_end) { @@ -1180,52 +1749,29 @@ handle_delayed_dealloc(Allctr_t *allctr, res = 1; - INC_CC(allctr->calls.this_free); - - if (fix) { - ErtsAlcType_t type; - - type = ((ErtsAllctrFixDDBlock_t*) ptr)->fix_type; - ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - fix[ix].used--; - if (fix[ix].allocated < fix[ix].limit - && fix[ix].list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { - *((void **) ptr) = fix[ix].list; - fix[ix].list = ptr; - fix[ix].list_size++; - if (!allctr->fix_shrink_scheduled) { - allctr->fix_shrink_scheduled = 1; - erts_set_aux_work_timeout( - allctr->ix, - (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM - | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), - 1); - } - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); - continue; - } - fix[ix].allocated--; - if (fix[ix].list && fix[ix].allocated > fix[ix].limit) { - blk = UMEM2BLK(ptr); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, ptr); - ptr = fix[ix].list; - fix[ix].list = *((void **) ptr); - fix[ix].list_size--; - fix[ix].allocated--; - } + blk = UMEM2BLK(ptr); + if (IS_FREE_LAST_MBC_BLK(blk)) { + /* + * A multiblock carrier that previously has been migrated away + * from us and now is back to be deallocated... + * + * Note that we cannot use FBLK_TO_MBC(blk) since it + * data has been overwritten by the queue. + */ + Carrier_t *crr = FIRST_BLK_TO_MBC(allctr, blk); + ERTS_ALC_CPOOL_ASSERT(ERTS_ALC_IS_CPOOL_ENABLED(allctr)); + ERTS_ALC_CPOOL_ASSERT(allctr == crr->cpool.orig_allctr); + schedule_dealloc_carrier(allctr, crr); } + else { - blk = UMEM2BLK(ptr); + INC_CC(allctr->calls.this_free); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, ptr); - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); + if (fix) + handle_delayed_fix_dealloc(allctr, ptr); + else + dealloc_block(allctr, ptr, 1); + } } if (need_thr_progress && !(need_thr_prgr | need_mr_wrk)) { @@ -1235,6 +1781,12 @@ handle_delayed_dealloc(Allctr_t *allctr, store_earliest_thr_prgr(thr_prgr_p, ddq); } + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + check_pending_dealloc_carrier(allctr, + need_thr_progress, + thr_prgr_p, + need_more_work); + if (allctr->thread_safe && !allctr_locked) erts_mtx_unlock(&allctr->mutex); return res; @@ -1249,13 +1801,59 @@ enqueue_dealloc_other_instance(ErtsAlcType_t type, if (allctr->fix) ((ErtsAllctrFixDDBlock_t*) ptr)->fix_type = type; - if (ddq_enqueue(type, &allctr->dd.q, ptr, cinit)) + if (ddq_enqueue(&allctr->dd.q, ptr, cinit)) erts_alloc_notify_delayed_dealloc(allctr->ix); } #endif #ifdef ERTS_SMP +static void +set_new_allctr_abandon_limit(Allctr_t *allctr); +static void +abandon_carrier(Allctr_t *allctr, Carrier_t *crr); + + +static ERTS_INLINE void +check_abandon_carrier(Allctr_t *allctr, Block_t *fblk, Carrier_t **busy_pcrr_pp) +{ + Carrier_t *crr; + + if (busy_pcrr_pp && *busy_pcrr_pp) + return; + + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + return; + + allctr->cpool.check_limit_count--; + if (--allctr->cpool.check_limit_count <= 0) + set_new_allctr_abandon_limit(allctr); + + if (!erts_thr_progress_is_managed_thread()) + return; + + if (allctr->cpool.disable_abandon) + return; + + if (allctr->mbcs.blocks.curr.size > allctr->cpool.abandon_limit) + return; + + + crr = FBLK_TO_MBC(fblk); + + if (allctr->main_carrier == crr) + return; + + if (crr->cpool.blocks_size > crr->cpool.abandon_limit) + return; + + if (crr->cpool.thr_prgr != ERTS_THR_PRGR_INVALID + && !erts_thr_progress_has_reached(crr->cpool.thr_prgr)) + return; + + abandon_carrier(allctr, crr); +} + void erts_alcu_check_delayed_dealloc(Allctr_t *allctr, int limit, @@ -1273,10 +1871,50 @@ erts_alcu_check_delayed_dealloc(Allctr_t *allctr, } #endif -#define ERTS_ALCU_HANDLE_DD_IN_OP(Allctr, Locked) \ - handle_delayed_dealloc((Allctr), (Locked), 1, \ +#define ERTS_ALCU_HANDLE_DD_IN_OP(Allctr, Locked) \ + handle_delayed_dealloc((Allctr), (Locked), 1, \ ERTS_ALCU_DD_OPS_LIM_LOW, NULL, NULL, NULL) +static void +dealloc_block(Allctr_t *allctr, void *ptr, int dec_cc_on_redirect) +{ + Block_t *blk = UMEM2BLK(ptr); + + ERTS_SMP_LC_ASSERT(!allctr->thread_safe + || erts_lc_mtx_is_locked(&allctr->mutex)); + + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); +#ifndef ERTS_SMP + else + mbc_free(allctr, ptr, NULL); +#else + else if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + mbc_free(allctr, ptr, NULL); + else { + Carrier_t *busy_pcrr_p; + Allctr_t *used_allctr; + used_allctr = get_used_allctr(allctr, ERTS_ALC_TS_PREF_LOCK_NO, ptr, + NULL, &busy_pcrr_p); + if (used_allctr == allctr) { + mbc_free(allctr, ptr, &busy_pcrr_p); + clear_busy_pool_carrier(allctr, busy_pcrr_p); + } + else { + /* Carrier migrated; need to redirect block to new owner... */ + int cinit = used_allctr->dd.ix - allctr->dd.ix; + + ERTS_ALC_CPOOL_ASSERT(!busy_pcrr_p); + + if (dec_cc_on_redirect) + DEC_CC(allctr->calls.this_free); + if (ddq_enqueue(&used_allctr->dd.q, ptr, cinit)) + erts_alloc_notify_delayed_dealloc(used_allctr->ix); + } + } +#endif +} + /* Multi block carrier alloc/realloc/free ... */ /* NOTE! mbc_alloc() may in case of memory shortage place the requested @@ -1293,20 +1931,8 @@ mbc_alloc_block(Allctr_t *allctr, Uint size, Uint *blk_szp) *blk_szp = get_blk_sz = UMEMSZ2BLKSZ(allctr, size); -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif - blk = (*allctr->get_free_block)(allctr, get_blk_sz, NULL, 0); -#ifdef ERTS_SMP - if (!blk && allctr->dd.use) { - if (ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1)) - blk = (*allctr->get_free_block)(allctr, get_blk_sz, NULL, 0); - } -#endif - if (!blk) { blk = create_carrier(allctr, get_blk_sz, CFLG_MBC); #if !HALFWORD_HEAP && !HAVE_SUPER_ALIGNED_MB_CARRIERS @@ -1413,7 +2039,8 @@ mbc_alloc_finalize(Allctr_t *allctr, ASSERT(ABLK_TO_MBC(blk) == crr); } - STAT_MBC_BLK_ALLOC(allctr, blk_sz); + ERTS_ALC_CPOOL_ALLOC_OP(allctr); + STAT_MBC_BLK_ALLOC(allctr, crr, blk_sz, alcu_flgs); ASSERT(IS_ALLOCED_BLK(blk)); ASSERT(blk_sz == MBC_BLK_SZ(blk)); @@ -1448,14 +2075,14 @@ mbc_alloc(Allctr_t *allctr, Uint size) } static void -mbc_free(Allctr_t *allctr, void *p) +mbc_free(Allctr_t *allctr, void *p, Carrier_t **busy_pcrr_pp) { Uint is_first_blk; Uint is_last_blk; Uint blk_sz; Block_t *blk; Block_t *nxt_blk; - + Carrier_t *crr; ASSERT(p); @@ -1467,7 +2094,10 @@ mbc_free(Allctr_t *allctr, void *p) HARD_CHECK_BLK_CARRIER(allctr, blk); - STAT_MBC_BLK_FREE(allctr, blk_sz); + crr = ABLK_TO_MBC(blk); + + ERTS_ALC_CPOOL_FREE_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, busy_pcrr_pp, blk_sz, alcu_flgs); is_first_blk = IS_MBC_FIRST_ABLK(allctr, blk); is_last_blk = IS_LAST_BLK(blk); @@ -1525,16 +2155,20 @@ mbc_free(Allctr_t *allctr, void *p) if (is_first_blk && is_last_blk && allctr->main_carrier != FIRST_BLK_TO_MBC(allctr, blk)) { - destroy_carrier(allctr, blk); + destroy_carrier(allctr, blk, busy_pcrr_pp); } else { (*allctr->link_free_block)(allctr, blk); HARD_CHECK_BLK_CARRIER(allctr, blk); +#ifdef ERTS_SMP + check_abandon_carrier(allctr, blk, busy_pcrr_pp); +#endif } } static void * -mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) +mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs, + Carrier_t **busy_pcrr_pp) { void *new_p; Uint old_blk_sz; @@ -1548,11 +2182,6 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) Uint is_last_blk; #endif /* #ifndef MBC_REALLOC_ALWAYS_MOVES */ -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif - ASSERT(p); ASSERT(size); ASSERT(size < allctr->sbc_threshold); @@ -1566,6 +2195,12 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) if (alcu_flgs & ERTS_ALCU_FLG_FAIL_REALLOC_MOVE) return NULL; #else /* !MBC_REALLOC_ALWAYS_MOVES */ + +#ifdef ERTS_SMP + if (busy_pcrr_pp && *busy_pcrr_pp) + goto realloc_move; /* Don't want to use carrier in pool */ +#endif + get_blk_sz = blk_sz = UMEMSZ2BLKSZ(allctr, size); ASSERT(IS_ALLOCED_BLK(blk)); @@ -1636,8 +2271,11 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) nxt_blk = BLK_AFTER(blk, blk_sz); - STAT_MBC_BLK_FREE(allctr, old_blk_sz); - STAT_MBC_BLK_ALLOC(allctr, blk_sz); + crr = ABLK_TO_MBC(blk); + + ERTS_ALC_CPOOL_REALLOC_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, NULL, old_blk_sz, alcu_flgs); + STAT_MBC_BLK_ALLOC(allctr, crr, blk_sz, alcu_flgs); ASSERT(MBC_BLK_SZ(blk) >= allctr->min_block_size); @@ -1655,7 +2293,6 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz); } - crr = ABLK_TO_MBC(blk); SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz, SBH_THIS_FREE | (is_last_blk ? SBH_LAST_BLK : 0), crr); @@ -1683,6 +2320,10 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) HARD_CHECK_BLK_CARRIER(allctr, blk); +#ifdef ERTS_SMP + check_abandon_carrier(allctr, nxt_blk, NULL); +#endif + return p; } @@ -1692,6 +2333,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) nxt_blk = BLK_AFTER(blk, old_blk_sz); nxt_blk_sz = MBC_BLK_SZ(nxt_blk); if (IS_FREE_BLK(nxt_blk) && get_blk_sz <= old_blk_sz + nxt_blk_sz) { + Carrier_t* crr = ABLK_TO_MBC(blk); /* Grow into next block... */ HARD_CHECK_BLK_CARRIER(allctr, blk); @@ -1721,7 +2363,6 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) } } else { - Carrier_t* crr = ABLK_TO_MBC(blk); SET_MBC_ABLK_SZ(blk, blk_sz); nxt_blk = BLK_AFTER(blk, blk_sz); @@ -1738,9 +2379,9 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) ASSERT(FBLK_TO_MBC(nxt_blk) == crr); } - STAT_MBC_BLK_FREE(allctr, old_blk_sz); - STAT_MBC_BLK_ALLOC(allctr, blk_sz); - + ERTS_ALC_CPOOL_REALLOC_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, NULL, old_blk_sz, alcu_flgs); + STAT_MBC_BLK_ALLOC(allctr, crr, blk_sz, alcu_flgs); ASSERT(IS_ALLOCED_BLK(blk)); ASSERT(blk_sz == MBC_BLK_SZ(blk)); @@ -1793,13 +2434,16 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) if (cand_blk_sz < get_blk_sz) { /* We wont fit in cand_blk get a new one */ +#ifdef ERTS_SMP + realloc_move: +#endif #endif /* !MBC_REALLOC_ALWAYS_MOVES */ new_p = mbc_alloc(allctr, size); if (!new_p) return NULL; sys_memcpy(new_p, p, MIN(size, old_blk_sz - ABLK_HDR_SZ)); - mbc_free(allctr, p); + mbc_free(allctr, p, busy_pcrr_pp); return new_p; @@ -1829,7 +2473,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) 1); new_p = BLK2UMEM(new_blk); sys_memcpy(new_p, p, MIN(size, old_blk_sz - ABLK_HDR_SZ)); - mbc_free(allctr, p); + mbc_free(allctr, p, NULL); return new_p; } else { @@ -1885,7 +2529,8 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) blk_sz, 0); - STAT_MBC_BLK_FREE(allctr, old_blk_sz); + ERTS_ALC_CPOOL_FREE_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, NULL, old_blk_sz, alcu_flgs); return new_p; } @@ -1895,7 +2540,11 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) #ifdef ERTS_SMP +#define ERTS_ALC_MAX_DEALLOC_CARRIER 10 #define ERTS_ALC_CPOOL_MAX_FETCH_INSPECT 10 +#define ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT 100 +#define ERTS_ALC_CPOOL_MAX_NO_CARRIERS 5 +#define ERTS_ALC_CPOOL_INSERT_ALLOWED_OFFSET 100 #define ERTS_ALC_CPOOL_PTR_MOD_MRK (((erts_aint_t) 1) << 0) #define ERTS_ALC_CPOOL_PTR_DEL_MRK (((erts_aint_t) 1) << 1) @@ -2063,7 +2712,6 @@ cpool_insert(Allctr_t *allctr, Carrier_t *crr) ERTS_ALC_CPOOL_ASSERT(erts_smp_atomic_read_nob(&crr->allctr) == (erts_aint_t) allctr); - erts_atomic_add_nob(&allctr->cpool.stat.blocks_size, (erts_aint_t) crr->cpool.blocks_size); erts_atomic_add_nob(&allctr->cpool.stat.no_blocks, @@ -2221,7 +2869,7 @@ cpool_delete(Allctr_t *allctr, Allctr_t *prev_allctr, Carrier_t *crr) crr->cpool.thr_prgr = erts_thr_progress_later(NULL); erts_atomic_add_nob(&prev_allctr->cpool.stat.blocks_size, - -((erts_aint_t) -crr->cpool.blocks_size)); + -((erts_aint_t) crr->cpool.blocks_size)); erts_atomic_add_nob(&prev_allctr->cpool.stat.no_blocks, -((erts_aint_t) crr->cpool.blocks)); erts_atomic_add_nob(&prev_allctr->cpool.stat.carriers_size, @@ -2248,6 +2896,13 @@ cpool_fetch(Allctr_t *allctr, UWord size) while (crr && i < ERTS_ALC_CPOOL_MAX_FETCH_INSPECT) { if (erts_atomic_read_nob(&crr->cpool.max_size) >= size) { unlink_carrier(&allctr->cpool.dc_list, crr); +#ifdef ERTS_ALC_CPOOL_DEBUG + ERTS_ALC_CPOOL_ASSERT(erts_smp_atomic_xchg_nob(&crr->allctr, + ((erts_aint_t) allctr)) + == (((erts_aint_t) allctr) & ~FLG_MASK)); +#else + erts_smp_atomic_set_nob(&crr->allctr, ((erts_aint_t) allctr)); +#endif return crr; } crr = crr->prev; @@ -2295,21 +2950,172 @@ cpool_fetch(Allctr_t *allctr, UWord size) return NULL; } +static void +check_pending_dealloc_carrier(Allctr_t *allctr, + int *need_thr_progress, + ErtsThrPrgrVal *thr_prgr_p, + int *need_more_work) +{ + Carrier_t *crr = allctr->cpool.dc_list.first; + + if (crr) { + ErtsThrPrgrVal current = erts_thr_progress_current(); + int i = 0; + + do { + Carrier_t *dcrr; + + if (!erts_thr_progress_has_reached_this(current, crr->cpool.thr_prgr)) + break; + + dcrr = crr; + crr = crr->next; + dealloc_carrier(allctr, dcrr, ERTS_MSEG_FLG_2POW); + i++; + } while (crr && i < ERTS_ALC_MAX_DEALLOC_CARRIER); + + allctr->cpool.dc_list.first = crr; + if (!crr) + allctr->cpool.dc_list.last = NULL; + else { + crr->prev = NULL; + + if (need_more_work) { + ERTS_ALC_CPOOL_ASSERT(need_thr_progress && thr_prgr_p); + if (erts_thr_progress_has_reached_this(current, crr->cpool.thr_prgr)) + *need_more_work = 1; + else { + *need_thr_progress = 1; + if (*thr_prgr_p == ERTS_THR_PRGR_INVALID + || erts_thr_progress_cmp(crr->cpool.thr_prgr, + *thr_prgr_p) < 0) { + *thr_prgr_p = crr->cpool.thr_prgr; + } + } + } + } + } +} + +static void +schedule_dealloc_carrier(Allctr_t *allctr, Carrier_t *crr) +{ + Allctr_t *used_allctr; + int check_pending_dealloc; + erts_aint_t max_size; + + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_2POW); + return; + } + + used_allctr = crr->cpool.orig_allctr; + + if (allctr != used_allctr) { + Block_t *blk = MBC_TO_FIRST_BLK(allctr, crr); + int cinit = used_allctr->dd.ix - allctr->dd.ix; + + /* + * Receiver will recognize that this is a carrier to + * deallocate since the block is an mbc block that + * is free and last in carrier... + */ + ERTS_ALC_CPOOL_ASSERT(IS_FREE_LAST_MBC_BLK(blk)); + + ERTS_ALC_CPOOL_ASSERT(IS_MBC_FIRST_ABLK(allctr, blk)); + ERTS_ALC_CPOOL_ASSERT(crr == FBLK_TO_MBC(blk)); + ERTS_ALC_CPOOL_ASSERT(crr == FIRST_BLK_TO_MBC(used_allctr, blk)); + + if (ddq_enqueue(&used_allctr->dd.q, BLK2UMEM(blk), cinit)) + erts_alloc_notify_delayed_dealloc(used_allctr->ix); + return; + } + + if (crr->cpool.thr_prgr == ERTS_THR_PRGR_INVALID + || erts_thr_progress_has_reached(crr->cpool.thr_prgr)) { + dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_2POW); + return; + } + + max_size = (erts_aint_t) allctr->largest_fblk_in_mbc(allctr, crr); + erts_atomic_set_nob(&crr->cpool.max_size, max_size); + + crr->next = NULL; + crr->prev = allctr->cpool.dc_list.last; + if (allctr->cpool.dc_list.last) { + check_pending_dealloc = 1; + allctr->cpool.dc_list.last->next = crr; + } + else { + check_pending_dealloc = 0; + allctr->cpool.dc_list.first = crr; + } + allctr->cpool.dc_list.last = crr; + if (check_pending_dealloc) + check_pending_dealloc_carrier(allctr, NULL, NULL, NULL); + erts_alloc_ensure_handle_delayed_dealloc_call(allctr->ix); +} + static ERTS_INLINE void cpool_init_carrier_data(Allctr_t *allctr, Carrier_t *crr) { - UWord limit, csz; erts_atomic_init_nob(&crr->cpool.next, ERTS_AINT_NULL); erts_atomic_init_nob(&crr->cpool.prev, ERTS_AINT_NULL); + crr->cpool.orig_allctr = allctr; crr->cpool.thr_prgr = ERTS_THR_PRGR_INVALID; erts_atomic_init_nob(&crr->cpool.max_size, 0); - csz = CARRIER_SZ(crr); + crr->cpool.blocks = 0; + crr->cpool.blocks_size = 0; + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + crr->cpool.abandon_limit = 0; + else { + UWord csz = CARRIER_SZ(crr); + UWord limit = csz*allctr->cpool.util_limit; + if (limit > csz) + limit /= 100; + else + limit = (csz/100)*allctr->cpool.util_limit; + crr->cpool.abandon_limit = limit; + } +} + +static void +set_new_allctr_abandon_limit(Allctr_t *allctr) +{ + UWord limit; + UWord csz; + + allctr->cpool.check_limit_count = ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT; + + csz = allctr->mbcs.curr.norm.mseg.size; + csz += allctr->mbcs.curr.norm.sys_alloc.size; + limit = csz*allctr->cpool.util_limit; if (limit > csz) limit /= 100; else limit = (csz/100)*allctr->cpool.util_limit; - crr->cpool.abandon_limit = limit; + + allctr->cpool.abandon_limit = limit; +} + +static void +abandon_carrier(Allctr_t *allctr, Carrier_t *crr) +{ + erts_aint_t max_size; + + STAT_MBC_CPOOL_INSERT(allctr, crr); + + unlink_carrier(&allctr->mbc_list, crr); + + allctr->remove_mbc(allctr, crr); + + max_size = (erts_aint_t) allctr->largest_fblk_in_mbc(allctr, crr); + erts_atomic_set_nob(&crr->cpool.max_size, max_size); + + cpool_insert(allctr, crr); + + set_new_allctr_abandon_limit(allctr); } #endif /* ERTS_SMP */ @@ -2385,6 +3191,24 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) blk_sz = UMEMSZ2BLKSZ(allctr, umem_sz); +#ifdef ERTS_SMP + allctr->cpool.disable_abandon = ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON; + + if ((flags & (CFLG_MBC|CFLG_NO_CPOOL)) == CFLG_MBC + && ERTS_ALC_IS_CPOOL_ENABLED(allctr) + && erts_thr_progress_is_managed_thread()) { + crr = cpool_fetch(allctr, blk_sz); + if (crr) { + STAT_MBC_CPOOL_FETCH(allctr, crr); + link_carrier(&allctr->mbc_list, crr); + (*allctr->add_mbc)(allctr, crr); + blk = (*allctr->get_free_block)(allctr, blk_sz, NULL, 0); + ASSERT(blk); + return blk; + } + } +#endif + #if HAVE_ERTS_MSEG if (flags & CFLG_FORCE_SYS_ALLOC) @@ -2512,6 +3336,10 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) allctr->main_carrier = crr; } +#ifdef ERTS_SMP + cpool_init_carrier_data(allctr, crr); +#endif + link_carrier(&allctr->mbc_list, crr); CHECK_1BLK_CARRIER(allctr, 0, is_mseg, crr, crr_sz, blk, blk_sz); @@ -2660,14 +3488,21 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) } static void -destroy_carrier(Allctr_t *allctr, Block_t *blk) +dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, Uint mseg_flags) { - Uint crr_sz; - Carrier_t *crr; #if HAVE_ERTS_MSEG - Uint is_mseg = 0; - Uint mseg_flags = ERTS_MSEG_FLG_NONE; + if (IS_MSEG_CARRIER(crr)) + alcu_mseg_dealloc(allctr, crr, CARRIER_SZ(crr), mseg_flags); + else #endif + alcu_sys_free(allctr, crr); +} + +static void +destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp) +{ + Uint crr_sz; + Carrier_t *crr; if (IS_SBC_BLK(blk)) { Uint blk_sz = SBC_BLK_SZ(blk); @@ -2680,7 +3515,6 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk) #if HAVE_ERTS_MSEG if (IS_MSEG_CARRIER(crr)) { - is_mseg++; ASSERT(crr_sz % MSEG_UNIT_SZ == 0); STAT_MSEG_SBC_FREE(allctr, crr_sz, blk_sz); } @@ -2690,6 +3524,7 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk) unlink_carrier(&allctr->sbc_list, crr); + dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_NONE); } else { ASSERT(IS_MBC_FIRST_FBLK(allctr, blk)); @@ -2708,30 +3543,36 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk) } #endif -#if HAVE_ERTS_MSEG - if (IS_MSEG_CARRIER(crr)) { - is_mseg++; - ASSERT(crr_sz % MSEG_UNIT_SZ == 0); - STAT_MSEG_MBC_FREE(allctr, crr_sz); - mseg_flags = ERTS_MSEG_FLG_2POW; + if (allctr->destroying_mbc) + (*allctr->destroying_mbc)(allctr, crr); + +#ifdef ERTS_SMP + if (busy_pcrr_pp && *busy_pcrr_pp) { + ERTS_ALC_CPOOL_ASSERT(*busy_pcrr_pp == crr); + *busy_pcrr_pp = NULL; + cpool_delete(allctr, allctr, crr); } else #endif - STAT_SYS_ALLOC_MBC_FREE(allctr, crr_sz); + { + unlink_carrier(&allctr->mbc_list, crr); +#if HAVE_ERTS_MSEG + if (IS_MSEG_CARRIER(crr)) { + ASSERT(crr_sz % MSEG_UNIT_SZ == 0); + STAT_MSEG_MBC_FREE(allctr, crr_sz); + } + else +#endif + STAT_SYS_ALLOC_MBC_FREE(allctr, crr_sz); + } - unlink_carrier(&allctr->mbc_list, crr); - if (allctr->destroying_mbc) - (*allctr->destroying_mbc)(allctr, crr); +#ifdef ERTS_SMP + schedule_dealloc_carrier(allctr, crr); +#else + dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_2POW); +#endif } - -#if HAVE_ERTS_MSEG - if (is_mseg) { - alcu_mseg_dealloc(allctr, crr, crr_sz, mseg_flags); - } - else -#endif - alcu_sys_free(allctr, crr); } @@ -2974,8 +3815,24 @@ add_4tup(Uint **hpp, Uint *szp, Eterm *lp, bld_cons(hpp, szp, bld_tuple(hpp, szp, 4, el1, el2, el3, el4), *lp); } +static ERTS_INLINE void +add_fix_types(Allctr_t *allctr, int internal, Uint **hpp, Uint *szp, + Eterm *lp, Eterm fix) +{ + if (allctr->fix) { + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + add_2tup(hpp, szp, lp, am.fix_types, fix); + else if (internal) + add_3tup(hpp, szp, lp, + am.fix_types, + erts_bld_uword(hpp, szp, ~((UWord) 0)), + fix); + } +} + static Eterm sz_info_fix(Allctr_t *allctr, + int internal, int *print_to_p, void *print_to_arg, Uint **hpp, @@ -2983,36 +3840,67 @@ sz_info_fix(Allctr_t *allctr, { Eterm res; int ix; - ErtsAlcFixList_t *fix = allctr->fix; - ASSERT(fix); + ASSERT(allctr->fix); res = NIL; - for (ix = ERTS_ALC_NO_FIXED_SIZES-1; ix >= 0; ix--) { - ErtsAlcType_t n = ix + ERTS_ALC_N_MIN_A_FIXED_SIZE; - Uint alloced = (fix[ix].type_size * fix[ix].allocated); - Uint used = fix[ix].type_size*fix[ix].used; - - if (print_to_p) { - int to = *print_to_p; - void *arg = print_to_arg; - erts_print(to, - arg, - "fix type: %s %bpu %bpu\n", - (char *) ERTS_ALC_N2TD(n), - alloced, - used); - } + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + + if (internal) { + for (ix = ERTS_ALC_NO_FIXED_SIZES-1; ix >= 0; ix--) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + UWord alloced = fix->type_size * fix->u.cpool.allocated; + UWord used = fix->type_size * fix->u.cpool.used; + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + erts_print(to, + arg, + "fix type internal: %s %bpu %bpu\n", + (char *) ERTS_ALC_N2TD(ERTS_ALC_N_MIN_A_FIXED_SIZE + + ix), + alloced, + used); + } - if (hpp || szp) { - add_3tup(hpp, szp, &res, - fix_type_atoms[ix], - bld_unstable_uint(hpp, szp, alloced), - bld_unstable_uint(hpp, szp, used)); + if (hpp || szp) { + add_3tup(hpp, szp, &res, + fix_type_atoms[ix], + bld_unstable_uint(hpp, szp, alloced), + bld_unstable_uint(hpp, szp, used)); + } + } } } + else { + for (ix = ERTS_ALC_NO_FIXED_SIZES-1; ix >= 0; ix--) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + UWord alloced = fix->type_size * fix->u.nocpool.allocated; + UWord used = fix->type_size*fix->u.nocpool.used; + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + erts_print(to, + arg, + "fix type: %s %bpu %bpu\n", + (char *) ERTS_ALC_N2TD(ERTS_ALC_N_MIN_A_FIXED_SIZE + + ix), + alloced, + used); + } + + if (hpp || szp) { + add_3tup(hpp, szp, &res, + fix_type_atoms[ix], + bld_unstable_uint(hpp, szp, alloced), + bld_unstable_uint(hpp, szp, used)); + } + } + } return res; } @@ -3516,6 +4404,7 @@ erts_alcu_info_options(Allctr_t *allctr, Eterm erts_alcu_sz_info(Allctr_t *allctr, + int internal, int begin_max_period, int *print_to_p, void *print_to_arg, @@ -3555,7 +4444,7 @@ erts_alcu_sz_info(Allctr_t *allctr, update_max_ever_values(&allctr->sbcs); if (allctr->fix) - fix = sz_info_fix(allctr, print_to_p, print_to_arg, hpp, szp); + fix = sz_info_fix(allctr, internal, print_to_p, print_to_arg, hpp, szp); mbcs = sz_info_carriers(allctr, &allctr->mbcs, "mbcs ", print_to_p, print_to_arg, hpp, szp); sbcs = sz_info_carriers(allctr, &allctr->sbcs, "sbcs ", print_to_p, @@ -3565,8 +4454,7 @@ erts_alcu_sz_info(Allctr_t *allctr, res = NIL; add_2tup(hpp, szp, &res, am.sbcs, sbcs); add_2tup(hpp, szp, &res, am.mbcs, mbcs); - if (allctr->fix) - add_2tup(hpp, szp, &res, am.fix_types, fix); + add_fix_types(allctr, internal, hpp, szp, &res, fix); } if (begin_max_period) { @@ -3588,6 +4476,7 @@ erts_alcu_sz_info(Allctr_t *allctr, Eterm erts_alcu_info(Allctr_t *allctr, + int internal, int begin_max_period, int *print_to_p, void *print_to_arg, @@ -3636,7 +4525,7 @@ erts_alcu_info(Allctr_t *allctr, sett = info_options(allctr, print_to_p, print_to_arg, hpp, szp); if (allctr->fix) - fix = sz_info_fix(allctr, print_to_p, print_to_arg, hpp, szp); + fix = sz_info_fix(allctr, internal, print_to_p, print_to_arg, hpp, szp); mbcs = info_carriers(allctr, &allctr->mbcs, "mbcs ", print_to_p, print_to_arg, hpp, szp); sbcs = info_carriers(allctr, &allctr->sbcs, "sbcs ", print_to_p, @@ -3649,8 +4538,7 @@ erts_alcu_info(Allctr_t *allctr, add_2tup(hpp, szp, &res, am.calls, calls); add_2tup(hpp, szp, &res, am.sbcs, sbcs); add_2tup(hpp, szp, &res, am.mbcs, mbcs); - if (allctr->fix) - add_2tup(hpp, szp, &res, am.fix_types, fix); + add_fix_types(allctr, internal, hpp, szp, &res, fix); add_2tup(hpp, szp, &res, am.options, sett); add_3tup(hpp, szp, &res, am.versions, @@ -3696,10 +4584,18 @@ erts_alcu_current_size(Allctr_t *allctr, AllctrSize_t *size, ErtsAlcUFixInfo_t * int ix; for (ix = 0; ix < fisz; ix++) { if (allctr->fix) { - fi[ix].allocated += (allctr->fix[ix].type_size - * allctr->fix[ix].allocated); - fi[ix].used += (allctr->fix[ix].type_size - * allctr->fix[ix].used); + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + fi[ix].allocated += (allctr->fix[ix].type_size + * allctr->fix[ix].u.cpool.allocated); + fi[ix].used += (allctr->fix[ix].type_size + * allctr->fix[ix].u.cpool.used); + } + else { + fi[ix].allocated += (allctr->fix[ix].type_size + * allctr->fix[ix].u.nocpool.allocated); + fi[ix].used += (allctr->fix[ix].type_size + * allctr->fix[ix].u.nocpool.used); + } } } } @@ -3717,7 +4613,6 @@ do_erts_alcu_alloc(ErtsAlcType_t type, void *extra, Uint size) { Allctr_t *allctr = (Allctr_t *) extra; void *res; - ErtsAlcFixList_t *fix; ASSERT(initialized); @@ -3735,57 +4630,21 @@ do_erts_alcu_alloc(ErtsAlcType_t type, void *extra, Uint size) INC_CC(allctr->calls.this_alloc); - fix = allctr->fix; - if (fix) { - int ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - ASSERT((unsigned)ix < ERTS_ALC_NO_FIXED_SIZES); - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - ASSERT(size <= fix[ix].type_size); - fix[ix].used++; - res = fix[ix].list; - if (res) { - fix[ix].list_size--; - fix[ix].list = *((void **) res); - if (fix[ix].list && fix[ix].allocated > fix[ix].limit) { - void *p = fix[ix].list; - Block_t *blk; - fix[ix].list = *((void **) p); - fix[ix].list_size--; - blk = UMEM2BLK(p); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, p); - fix[ix].allocated--; - } - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); - return res; - } - size = fix[ix].type_size; - if (fix[ix].limit < fix[ix].used) - fix[ix].limit = fix[ix].used; - if (fix[ix].max_used < fix[ix].used) - fix[ix].max_used = fix[ix].used; - fix[ix].allocated++; + if (allctr->fix) { + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + return fix_cpool_alloc(allctr, type, size); + else + return fix_nocpool_alloc(allctr, type, size); } if (size >= allctr->sbc_threshold) { Block_t *blk; -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif blk = create_carrier(allctr, size, CFLG_SBC); res = blk ? BLK2UMEM(blk) : NULL; } else res = mbc_alloc(allctr, size); - if (!res && fix) { - int ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - fix[ix].allocated--; - fix[ix].used--; - } return res; } @@ -3854,9 +4713,22 @@ erts_alcu_alloc_thr_pref(ErtsAlcType_t type, void *extra, Uint size) if (pref_allctr->thread_safe) erts_mtx_lock(&pref_allctr->mutex); +#ifdef ERTS_SMP + ASSERT(pref_allctr->dd.use); + ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1); +#endif + ERTS_ALCU_DBG_CHK_THR_ACCESS(pref_allctr); res = do_erts_alcu_alloc(type, pref_allctr, size); + +#ifdef ERTS_SMP + if (!res && ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1)) { + /* Cleaned up a bit more; try one more time... */ + res = do_erts_alcu_alloc(type, pref_allctr, size); + } +#endif + if (pref_allctr->thread_safe) erts_mtx_unlock(&pref_allctr->mutex); @@ -3873,9 +4745,9 @@ erts_alcu_alloc_thr_pref(ErtsAlcType_t type, void *extra, Uint size) /* ------------------------------------------------------------------------- */ static ERTS_INLINE void -do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p) +do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p, + Carrier_t **busy_pcrr_pp) { - int ix; Allctr_t *allctr = (Allctr_t *) extra; ASSERT(initialized); @@ -3887,57 +4759,28 @@ do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p) ERTS_ALCU_DBG_CHK_THR_ACCESS(allctr); if (p) { - ErtsAlcFixList_t *fix = allctr->fix; - Block_t *blk; INC_CC(allctr->calls.this_free); - if (fix) { - ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - fix[ix].used--; - if (fix[ix].allocated < fix[ix].limit - && fix[ix].list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { - *((void **) p) = fix[ix].list; - fix[ix].list = p; - fix[ix].list_size++; - if (!allctr->fix_shrink_scheduled) { - allctr->fix_shrink_scheduled = 1; - erts_set_aux_work_timeout( - allctr->ix, - (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM - | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), - 1); - } - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); - return; - } - fix[ix].allocated--; - if (fix[ix].list && fix[ix].allocated > fix[ix].limit) { - blk = UMEM2BLK(p); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, p); - p = fix[ix].list; - fix[ix].list = *((void **) p); - fix[ix].list_size--; - fix[ix].allocated--; - } + if (allctr->fix) { + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + fix_cpool_free(allctr, type, p, busy_pcrr_pp); + else + fix_nocpool_free(allctr, type, p); + } + else { + Block_t *blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, busy_pcrr_pp); } - - blk = UMEM2BLK(p); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, p); - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); } } void erts_alcu_free(ErtsAlcType_t type, void *extra, void *p) { - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); } #ifdef USE_THREADS @@ -3947,7 +4790,7 @@ erts_alcu_free_ts(ErtsAlcType_t type, void *extra, void *p) { Allctr_t *allctr = (Allctr_t *) extra; erts_mtx_lock(&allctr->mutex); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); erts_mtx_unlock(&allctr->mutex); } @@ -3969,7 +4812,7 @@ erts_alcu_free_thr_spec(ErtsAlcType_t type, void *extra, void *p) if (allctr->thread_safe) erts_mtx_lock(&allctr->mutex); - do_erts_alcu_free(type, allctr, p); + do_erts_alcu_free(type, allctr, p, NULL); if (allctr->thread_safe) erts_mtx_unlock(&allctr->mutex); @@ -3979,10 +4822,12 @@ void erts_alcu_free_thr_pref(ErtsAlcType_t type, void *extra, void *p) { if (p) { + Carrier_t *busy_pcrr_p; Allctr_t *pref_allctr, *used_allctr; pref_allctr = get_pref_allctr(extra); - used_allctr = get_used_allctr(pref_allctr, extra, p, NULL); + used_allctr = get_used_allctr(pref_allctr, ERTS_ALC_TS_PREF_LOCK_IF_USED, + p, NULL, &busy_pcrr_p); if (pref_allctr != used_allctr) enqueue_dealloc_other_instance(type, used_allctr, @@ -3990,12 +4835,11 @@ erts_alcu_free_thr_pref(ErtsAlcType_t type, void *extra, void *p) (used_allctr->dd.ix - pref_allctr->dd.ix)); else { - if (used_allctr->thread_safe) - erts_mtx_lock(&used_allctr->mutex); ERTS_ALCU_DBG_CHK_THR_ACCESS(used_allctr); - do_erts_alcu_free(type, used_allctr, p); - if (used_allctr->thread_safe) - erts_mtx_unlock(&used_allctr->mutex); + do_erts_alcu_free(type, used_allctr, p, &busy_pcrr_p); + clear_busy_pool_carrier(used_allctr, busy_pcrr_p); + if (pref_allctr->thread_safe) + erts_mtx_unlock(&pref_allctr->mutex); } } } @@ -4011,7 +4855,8 @@ do_erts_alcu_realloc(ErtsAlcType_t type, void *extra, void *p, Uint size, - Uint32 alcu_flgs) + Uint32 alcu_flgs, + Carrier_t **busy_pcrr_pp) { Allctr_t *allctr = (Allctr_t *) extra; Block_t *blk; @@ -4036,7 +4881,7 @@ do_erts_alcu_realloc(ErtsAlcType_t type, #if ALLOC_ZERO_EQ_NULL if (!size) { ASSERT(p); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, busy_pcrr_pp); INC_CC(allctr->calls.this_realloc); DEC_CC(allctr->calls.this_free); return NULL; @@ -4049,7 +4894,7 @@ do_erts_alcu_realloc(ErtsAlcType_t type, if (size < allctr->sbc_threshold) { if (IS_MBC_BLK(blk)) - res = mbc_realloc(allctr, p, size, alcu_flgs); + res = mbc_realloc(allctr, p, size, alcu_flgs, busy_pcrr_pp); else { Uint used_sz = SBC_HEADER_SIZE + ABLK_HDR_SZ + size; Uint crr_sz; @@ -4088,16 +4933,12 @@ do_erts_alcu_realloc(ErtsAlcType_t type, sys_memcpy((void*) res, (void*) p, MIN(SBC_BLK_SZ(blk) - ABLK_HDR_SZ, size)); - destroy_carrier(allctr, blk); + destroy_carrier(allctr, blk, NULL); } } } else { Block_t *new_blk; -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif if(IS_SBC_BLK(blk)) { do_carrier_resize: #if HALFWORD_HEAP @@ -4116,7 +4957,7 @@ do_erts_alcu_realloc(ErtsAlcType_t type, sys_memcpy((void *) res, (void *) p, MIN(MBC_ABLK_SZ(blk) - ABLK_HDR_SZ, size)); - mbc_free(allctr, p); + mbc_free(allctr, p, busy_pcrr_pp); } else res = NULL; @@ -4130,7 +4971,7 @@ void * erts_alcu_realloc(ErtsAlcType_t type, void *extra, void *p, Uint size) { void *res; - res = do_erts_alcu_realloc(type, extra, p, size, 0); + res = do_erts_alcu_realloc(type, extra, p, size, 0, NULL); DEBUG_CHECK_ALIGNMENT(res); return res; } @@ -4151,7 +4992,7 @@ erts_alcu_realloc_mv(ErtsAlcType_t type, void *extra, void *p, Uint size) if (cpy_size > size) cpy_size = size; sys_memcpy(res, p, cpy_size); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); } DEBUG_CHECK_ALIGNMENT(res); return res; @@ -4166,7 +5007,7 @@ erts_alcu_realloc_ts(ErtsAlcType_t type, void *extra, void *ptr, Uint size) Allctr_t *allctr = (Allctr_t *) extra; void *res; erts_mtx_lock(&allctr->mutex); - res = do_erts_alcu_realloc(type, extra, ptr, size, 0); + res = do_erts_alcu_realloc(type, extra, ptr, size, 0, NULL); erts_mtx_unlock(&allctr->mutex); DEBUG_CHECK_ALIGNMENT(res); return res; @@ -4190,7 +5031,7 @@ erts_alcu_realloc_mv_ts(ErtsAlcType_t type, void *extra, void *p, Uint size) if (cpy_size > size) cpy_size = size; sys_memcpy(res, p, cpy_size); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); } erts_mtx_unlock(&allctr->mutex); DEBUG_CHECK_ALIGNMENT(res); @@ -4217,7 +5058,7 @@ erts_alcu_realloc_thr_spec(ErtsAlcType_t type, void *extra, if (allctr->thread_safe) erts_mtx_lock(&allctr->mutex); - res = do_erts_alcu_realloc(type, allctr, ptr, size, 0); + res = do_erts_alcu_realloc(type, allctr, ptr, size, 0, NULL); if (allctr->thread_safe) erts_mtx_unlock(&allctr->mutex); @@ -4260,7 +5101,7 @@ erts_alcu_realloc_mv_thr_spec(ErtsAlcType_t type, void *extra, if (cpy_size > size) cpy_size = size; sys_memcpy(res, ptr, cpy_size); - do_erts_alcu_free(type, allctr, ptr); + do_erts_alcu_free(type, allctr, ptr, NULL); if (allctr->thread_safe) erts_mtx_unlock(&allctr->mutex); } @@ -4277,40 +5118,64 @@ realloc_thr_pref(ErtsAlcType_t type, void *extra, void *p, Uint size, void *res; Allctr_t *pref_allctr, *used_allctr; UWord old_user_size; + Carrier_t *busy_pcrr_p; +#ifdef ERTS_SMP + int retried; +#endif if (!p) return erts_alcu_alloc_thr_pref(type, extra, size); pref_allctr = get_pref_allctr(extra); - used_allctr = get_used_allctr(pref_allctr, extra, p, &old_user_size); + + if (pref_allctr->thread_safe) + erts_mtx_lock(&pref_allctr->mutex); + +#ifdef ERTS_SMP + ASSERT(pref_allctr->dd.use); + ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1); + retried = 0; +restart: +#endif + + used_allctr = get_used_allctr(pref_allctr, ERTS_ALC_TS_PREF_LOCK_NO, + p, &old_user_size, &busy_pcrr_p); ASSERT(used_allctr && pref_allctr); if (!force_move && used_allctr == pref_allctr) { - if (used_allctr->thread_safe) - erts_mtx_lock(&used_allctr->mutex); ERTS_ALCU_DBG_CHK_THR_ACCESS(used_allctr); res = do_erts_alcu_realloc(type, used_allctr, p, size, - 0); - if (used_allctr->thread_safe) - erts_mtx_unlock(&used_allctr->mutex); + 0, + &busy_pcrr_p); + clear_busy_pool_carrier(used_allctr, busy_pcrr_p); +#ifdef ERTS_SMP + if (!res && !retried && ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1)) { + /* Cleaned up a bit more; try one more time... */ + retried = 1; + goto restart; + } +#endif + if (pref_allctr->thread_safe) + erts_mtx_unlock(&pref_allctr->mutex); } else { - if (pref_allctr->thread_safe) - erts_mtx_lock(&pref_allctr->mutex); res = do_erts_alcu_alloc(type, pref_allctr, size); - if (pref_allctr->thread_safe && used_allctr != pref_allctr) { - erts_mtx_unlock(&pref_allctr->mutex); - } - if (res) { - DEBUG_CHECK_ALIGNMENT(res); + if (!res) + goto unlock_ts_return; + else { - sys_memcpy(res, p, MIN(size,old_user_size)); + DEBUG_CHECK_ALIGNMENT(res); if (used_allctr != pref_allctr) { + if (pref_allctr->thread_safe) + erts_mtx_unlock(&pref_allctr->mutex); + + sys_memcpy(res, p, MIN(size, old_user_size)); + enqueue_dealloc_other_instance(type, used_allctr, p, @@ -4318,8 +5183,14 @@ realloc_thr_pref(ErtsAlcType_t type, void *extra, void *p, Uint size, - pref_allctr->dd.ix)); } else { - do_erts_alcu_free(type, used_allctr, p); + + sys_memcpy(res, p, MIN(size, old_user_size)); + + do_erts_alcu_free(type, used_allctr, p, &busy_pcrr_p); ASSERT(pref_allctr == used_allctr); + clear_busy_pool_carrier(used_allctr, busy_pcrr_p); + + unlock_ts_return: if (pref_allctr->thread_safe) erts_mtx_unlock(&pref_allctr->mutex); } @@ -4437,13 +5308,13 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) allctr->cpool.dc_list.first = NULL; allctr->cpool.dc_list.last = NULL; allctr->cpool.abandon_limit = 0; - allctr->cpool.insert_allowed_cc = 0; + allctr->cpool.disable_abandon = 0; erts_atomic_init_nob(&allctr->cpool.stat.blocks_size, 0); erts_atomic_init_nob(&allctr->cpool.stat.no_blocks, 0); erts_atomic_init_nob(&allctr->cpool.stat.carriers_size, 0); erts_atomic_init_nob(&allctr->cpool.stat.no_carriers, 0); - allctr->cpool.check_limit_count = 0; - allctr->cpool.util_limit = 0; + allctr->cpool.check_limit_count = ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT; + allctr->cpool.util_limit = init->acul; #endif allctr->sbc_threshold = init->sbct; @@ -4519,6 +5390,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) allctr->main_carrier_size, CFLG_MBC | CFLG_FORCE_SIZE + | CFLG_NO_CPOOL #if !HALFWORD_HEAP && !HAVE_SUPER_ALIGNED_MB_CARRIERS | CFLG_FORCE_SYS_ALLOC #endif @@ -4537,16 +5409,24 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) allctr->fix = init->fix; allctr->fix_shrink_scheduled = 0; for (i = 0; i < ERTS_ALC_NO_FIXED_SIZES; i++) { - allctr->fix[i].max_used = 0; - allctr->fix[i].limit = 0; allctr->fix[i].type_size = init->fix_type_size[i]; allctr->fix[i].list_size = 0; allctr->fix[i].list = NULL; - allctr->fix[i].allocated = 0; - allctr->fix[i].used = 0; #ifdef ERTS_SMP ASSERT(allctr->fix[i].type_size >= sizeof(ErtsAllctrFixDDBlock_t)); #endif + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + allctr->fix[i].u.cpool.min_list_size = 0; + allctr->fix[i].u.cpool.shrink_list = 0; + allctr->fix[i].u.cpool.allocated = 0; + allctr->fix[i].u.cpool.used = 0; + } + else { + allctr->fix[i].u.nocpool.max_used = 0; + allctr->fix[i].u.nocpool.limit = 0; + allctr->fix[i].u.nocpool.allocated = 0; + allctr->fix[i].u.nocpool.used = 0; + } } } @@ -4571,9 +5451,9 @@ erts_alcu_stop(Allctr_t *allctr) allctr->stopped = 1; while (allctr->sbc_list.first) - destroy_carrier(allctr, SBC2BLK(allctr, allctr->sbc_list.first)); + destroy_carrier(allctr, SBC2BLK(allctr, allctr->sbc_list.first), NULL); while (allctr->mbc_list.first) - destroy_carrier(allctr, MBC_TO_FIRST_BLK(allctr, allctr->mbc_list.first)); + destroy_carrier(allctr, MBC_TO_FIRST_BLK(allctr, allctr->mbc_list.first), NULL); #ifdef USE_THREADS if (allctr->thread_safe) |