diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/doc/src/erts_alloc.xml | 16 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_alloc.c | 16 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_ao_firstfit_alloc.c | 190 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_ao_firstfit_alloc.h | 11 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_bestfit_alloc.c | 6 | ||||
| -rw-r--r-- | erts/emulator/test/alloc_SUITE_data/allocator_test.h | 3 | ||||
| -rw-r--r-- | erts/emulator/test/alloc_SUITE_data/coalesce.c | 2 | ||||
| -rw-r--r-- | erts/emulator/test/alloc_SUITE_data/rbtree.c | 90 |
8 files changed, 222 insertions, 112 deletions
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml index a303ad18a6..e8682db5d5 100644 --- a/erts/doc/src/erts_alloc.xml +++ b/erts/doc/src/erts_alloc.xml @@ -170,6 +170,15 @@ used. The time complexity is proportional to log N, where N is the number of free blocks.</p> </item> + <tag>Address order first fit carrier best fit</tag> + <item> + <p>Strategy: Find the <em>carrier</em> with the lowest address that + can satisfy the requested block size, then find a block within + that carrier using the "best fit" strategy.</p> + <p>Implementation: Balanced binary search trees are + used. The time complexity is proportional to log N, where + N is the number of free blocks.</p> + </item> <tag>Address order first fit carrier address order best fit</tag> <item> <p>Strategy: Find the <em>carrier</em> with the lowest address that @@ -330,20 +339,21 @@ fetched it will function as an ordinary carrier. This feature has special requirements on the <seealso marker="#M_as">allocation strategy</seealso> used. Currently - only the <c>aoff</c> and the <c>aoffcaobf</c> strategies support + only the strategies <c>aoff</c>, <c>aoffcbf</c> and <c>aoffcaobf</c> support abandoned carriers. This feature also requires <seealso marker="#M_t">multiple thread specific instances</seealso> to be enabled. When enabling this feature, multiple thread specific instances will be enabled if not already enabled, and the - <c>aoffcaobf</c> strategy will be enabled if current strategy does not + <c>aoffcbf</c> strategy will be enabled if current strategy does not support abandoned carriers. This feature can be enabled on all allocators based on the <c>alloc_util</c> framework with the exception of <c>temp_alloc</c> (which would be pointless). </item> - <tag><marker id="M_as"><c><![CDATA[+M<S>as bf|aobf|aoff|aoffcaobf|gf|af]]></c></marker></tag> + <tag><marker id="M_as"><c><![CDATA[+M<S>as bf|aobf|aoff|aoffcbf|aoffcaobf|gf|af]]></c></marker></tag> <item> Allocation strategy. Valid strategies are <c>bf</c> (best fit), <c>aobf</c> (address order best fit), <c>aoff</c> (address order first fit), + <c>aoffcbf</c> (address order first fit carrier best fit), <c>aoffcaobf</c> (address order first fit carrier address order best fit), <c>gf</c> (good fit), and <c>af</c> (a fit). See <seealso marker="#strategy">the description of allocation strategies</seealso> in "the <c>alloc_util</c> framework" section.</item> diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c index 86575ccb9b..5eacff8829 100644 --- a/erts/emulator/beam/erl_alloc.c +++ b/erts/emulator/beam/erl_alloc.c @@ -249,7 +249,7 @@ set_default_acul(struct au_init *ip, int acul) { ip->thr_spec = 1; ip->atype = AOFIRSTFIT; - ip->init.aoff.bf_within_carrier = 1; + ip->init.aoff.flavor = AOFF_BF; ip->init.util.acul = acul; } @@ -564,7 +564,7 @@ static ERTS_INLINE int strategy_support_carrier_migration(struct au_init *auip) { /* - * Currently only aoff and aoffcaobf support carrier + * Currently only aoff, aoffcbf and aoffcaobf support carrier * migration, i.e, type AOFIRSTFIT. */ return auip->atype == AOFIRSTFIT; @@ -587,9 +587,9 @@ ensure_carrier_migration_support(struct au_init *auip) * default to a strategy that can... */ if (!strategy_support_carrier_migration(auip)) { - /* Default to aoffcaobf */ + /* Default to aoffcbf */ auip->atype = AOFIRSTFIT; - auip->init.aoff.bf_within_carrier = 1; + auip->init.aoff.flavor = AOFF_BF; } } @@ -1290,11 +1290,15 @@ handle_au_arg(struct au_init *auip, } else if (strcmp("aoff", alg) == 0) { auip->atype = AOFIRSTFIT; - auip->init.aoff.bf_within_carrier = 0; + auip->init.aoff.flavor = AOFF_AOFF; + } + else if (strcmp("aoffcbf", alg) == 0) { + auip->atype = AOFIRSTFIT; + auip->init.aoff.flavor = AOFF_BF; } else if (strcmp("aoffcaobf", alg) == 0) { auip->atype = AOFIRSTFIT; - auip->init.aoff.bf_within_carrier = 1; + auip->init.aoff.flavor = AOFF_AOBF; } else { bad_value(param, sub_param + 1, alg); diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.c b/erts/emulator/beam/erl_ao_firstfit_alloc.c index f73ac2eb6e..4e6c8b317e 100644 --- a/erts/emulator/beam/erl_ao_firstfit_alloc.c +++ b/erts/emulator/beam/erl_ao_firstfit_alloc.c @@ -34,10 +34,11 @@ * sub-tree ('max_sz'). By that we can start from root and keep * left (for low addresses) while dismissing entire sub-trees with * too small blocks. - * AOFFCBF: + * Bestfit within carrier: * The only difference for "bestfit within carrier" is the tree * sorting order. Blocks within the same carrier are sorted - * wrt size instead of address. + * wrt size instead of address. The 'max_sz' field is maintained + * in order to dismiss entire carriers with too small blocks. * * Authors: Rickard Green/Sverker Eriksson */ @@ -67,6 +68,15 @@ # define LEFT_VISITED_FLG (((Uint) 1) << 2) # define RIGHT_VISITED_FLG (((Uint) 1) << 3) #endif +#ifdef DEBUG +# define IS_BF_FLG (((Uint) 1) << 4) +#endif + +#define IS_TREE_NODE(N) (((AOFF_RBTree_t *) (N))->flags & TREE_NODE_FLG) +#define IS_LIST_ELEM(N) (!IS_TREE_NODE(((AOFF_RBTree_t *) (N)))) + +#define SET_TREE_NODE(N) (((AOFF_RBTree_t *) (N))->flags |= TREE_NODE_FLG) +#define SET_LIST_ELEM(N) (((AOFF_RBTree_t *) (N))->flags &= ~TREE_NODE_FLG) #define IS_RED(N) (((AOFF_RBTree_t *) (N)) \ && ((AOFF_RBTree_t *) (N))->flags & RED_FLG) @@ -98,6 +108,16 @@ struct AOFF_RBTree_t_ { }; #define AOFF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->hdr) +/* BF block nodes keeps list of all with equal size + */ +typedef struct { + AOFF_RBTree_t t; + AOFF_RBTree_t *next; +}AOFF_RBTreeList_t; + +#define LIST_NEXT(N) (((AOFF_RBTreeList_t*) (N))->next) +#define LIST_PREV(N) (((AOFF_RBTreeList_t*) (N))->t.parent) + typedef struct AOFF_Carrier_t_ AOFF_Carrier_t; struct AOFF_Carrier_t_ { @@ -119,11 +139,11 @@ struct AOFF_Carrier_t_ { #ifdef HARD_DEBUG # define HARD_CHECK_IS_MEMBER(ROOT,NODE) rbt_assert_is_member(ROOT,NODE) -# define HARD_CHECK_TREE(CRR,BF,ROOT,SZ) check_tree(CRR, BF, ROOT, SZ) -static AOFF_RBTree_t * check_tree(Carrier_t* within_crr, int bestfit, AOFF_RBTree_t* root, Uint); +# define HARD_CHECK_TREE(CRR,FLV,ROOT,SZ) check_tree(CRR, FLV, ROOT, SZ) +static AOFF_RBTree_t * check_tree(Carrier_t* within_crr, enum AOFF_Flavor flavor, AOFF_RBTree_t* root, Uint); #else # define HARD_CHECK_IS_MEMBER(ROOT,NODE) -# define HARD_CHECK_TREE(CRR,BF,ROOT,SZ) +# define HARD_CHECK_TREE(CRR,FLV,ROOT,SZ) #endif @@ -161,25 +181,25 @@ static ERTS_INLINE void lower_max_size(AOFF_RBTree_t *node, else ASSERT(new_max == old_max); } -static ERTS_INLINE SWord cmp_blocks(int bestfit, +static ERTS_INLINE SWord cmp_blocks(enum AOFF_Flavor flavor, AOFF_RBTree_t* lhs, AOFF_RBTree_t* rhs) { ASSERT(lhs != rhs); - ASSERT(!bestfit || FBLK_TO_MBC(&lhs->hdr) == FBLK_TO_MBC(&rhs->hdr)); - if (bestfit) { + ASSERT(flavor == AOFF_AOFF || FBLK_TO_MBC(&lhs->hdr) == FBLK_TO_MBC(&rhs->hdr)); + if (flavor != AOFF_AOFF) { SWord diff = (SWord)AOFF_BLK_SZ(lhs) - (SWord)AOFF_BLK_SZ(rhs); - if (diff) return diff; + if (diff || flavor == AOFF_BF) return diff; } return (char*)lhs - (char*)rhs; } -static ERTS_INLINE SWord cmp_cand_blk(int bestfit, +static ERTS_INLINE SWord cmp_cand_blk(enum AOFF_Flavor flavor, Block_t* cand_blk, AOFF_RBTree_t* rhs) { - if (bestfit) { + if (flavor != AOFF_AOFF) { if (BLK_TO_MBC(cand_blk) == FBLK_TO_MBC(&rhs->hdr)) { SWord diff = (SWord)MBC_BLK_SZ(cand_blk) - (SWord)MBC_FBLK_SZ(&rhs->hdr); - if (diff) return diff; + if (diff || flavor == AOFF_BF) return diff; } } return (char*)cand_blk - (char*)rhs; @@ -198,7 +218,7 @@ static UWord aoff_largest_fblk_in_mbc(Allctr_t*, Carrier_t*); /* Generic tree functions used by both carrier and block trees. */ static void rbt_delete(AOFF_RBTree_t** root, AOFF_RBTree_t* del); -static void rbt_insert(int bestfit, AOFF_RBTree_t** root, AOFF_RBTree_t* blk); +static void rbt_insert(enum AOFF_Flavor flavor, AOFF_RBTree_t** root, AOFF_RBTree_t* blk); static AOFF_RBTree_t* rbt_search(AOFF_RBTree_t* root, Uint size); #ifdef HARD_DEBUG static int rbt_assert_is_member(AOFF_RBTree_t* root, AOFF_RBTree_t* node); @@ -234,21 +254,21 @@ erts_aoffalc_start(AOFFAllctr_t *alc, sys_memcpy((void *) alc, (void *) &zero.allctr, sizeof(AOFFAllctr_t)); - alc->bf_within_carrier = aoffinit->bf_within_carrier; + alc->flavor = aoffinit->flavor; allctr->mbc_header_size = sizeof(AOFF_Carrier_t); allctr->min_mbc_size = MIN_MBC_SZ; allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ; - allctr->min_block_size = sizeof(AOFF_RBTree_t); + allctr->min_block_size = (aoffinit->flavor == AOFF_BF ? + sizeof(AOFF_RBTreeList_t):sizeof(AOFF_RBTree_t)); - allctr->vsn_str = aoffinit->bf_within_carrier ? - ERTS_ALC_AOFF_CBF_ALLOC_VSN_STR : ERTS_ALC_AOFF_ALLOC_VSN_STR; + allctr->vsn_str = ERTS_ALC_AOFF_ALLOC_VSN_STR; /* Callback functions */ allctr->get_free_block = aoff_get_free_block; allctr->link_free_block = aoff_link_free_block; - allctr->unlink_free_block = aoff_unlink_free_block; + allctr->unlink_free_block = aoff_unlink_free_block; allctr->info_options = info_options; allctr->get_next_mbc_size = NULL; @@ -359,9 +379,7 @@ replace(AOFF_RBTree_t **root, AOFF_RBTree_t *x, AOFF_RBTree_t *y) y->parent = x->parent; y->right = x->right; y->left = x->left; - - y->max_sz = x->max_sz; - lower_max_size(y, NULL); + y->max_sz = x->max_sz; } static void @@ -458,23 +476,47 @@ tree_insert_fixup(AOFF_RBTree_t** root, AOFF_RBTree_t *blk) } static void -aoff_unlink_free_block(Allctr_t *allctr, Block_t *del) +aoff_unlink_free_block(Allctr_t *allctr, Block_t *blk) { -#ifdef HARD_DEBUG AOFFAllctr_t* alc = (AOFFAllctr_t*)allctr; -#endif - AOFF_Carrier_t *crr = (AOFF_Carrier_t*) FBLK_TO_MBC(del); + AOFF_RBTree_t* del = (AOFF_RBTree_t*)blk; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) FBLK_TO_MBC(&del->hdr); ASSERT(crr->rbt_node.hdr.bhdr == crr->root->max_sz); - HARD_CHECK_IS_MEMBER(alc->mbc_root, &crr->rbt_node); - HARD_CHECK_TREE(&crr->crr, alc->bf_within_carrier, crr->root, 0); + HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, 0); + + if (alc->flavor == AOFF_BF) { + ASSERT(del->flags & IS_BF_FLG); + if (IS_LIST_ELEM(del)) { + /* Remove from list */ + ASSERT(LIST_PREV(del)); + ASSERT(LIST_PREV(del)->flags & IS_BF_FLG); + LIST_NEXT(LIST_PREV(del)) = LIST_NEXT(del); + if (LIST_NEXT(del)) { + ASSERT(LIST_NEXT(del)->flags & IS_BF_FLG); + LIST_PREV(LIST_NEXT(del)) = LIST_PREV(del); + } + return; + } + else if (LIST_NEXT(del)) { + /* Replace tree node by next element in list... */ + + ASSERT(AOFF_BLK_SZ(LIST_NEXT(del)) == AOFF_BLK_SZ(del)); + ASSERT(IS_LIST_ELEM(LIST_NEXT(del))); + + replace(&crr->root, (AOFF_RBTree_t*)del, LIST_NEXT(del)); + + HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, 0); + return; + } + } rbt_delete(&crr->root, (AOFF_RBTree_t*)del); - HARD_CHECK_TREE(&crr->crr, alc->bf_within_carrier, crr->root, 0); + HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, 0); - /* Update the carrier tree with a potentially new (lower) max_sz - */ + /* Update the carrier tree with a potentially new (lower) max_sz + */ if (crr->root) { if (crr->rbt_node.hdr.bhdr == crr->root->max_sz) { return; @@ -488,6 +530,7 @@ aoff_unlink_free_block(Allctr_t *allctr, Block_t *del) lower_max_size(&crr->rbt_node, NULL); } + static void rbt_delete(AOFF_RBTree_t** root, AOFF_RBTree_t* del) { @@ -542,7 +585,9 @@ rbt_delete(AOFF_RBTree_t** root, AOFF_RBTree_t* del) } if (y != z) { /* We spliced out the successor of z; replace z by the successor */ + ASSERT(z != &null_x); replace(root, z, y); + lower_max_size(y, NULL); } if (spliced_is_black) { @@ -666,12 +711,11 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block) ASSERT(allctr == ERTS_ALC_CARRIER_TO_ALLCTR(&blk_crr->crr)); ASSERT(blk_crr->rbt_node.hdr.bhdr == (blk_crr->root ? blk_crr->root->max_sz : 0)); - HARD_CHECK_IS_MEMBER(alc->mbc_root, &blk_crr->rbt_node); - HARD_CHECK_TREE(&blk_crr->crr, alc->bf_within_carrier, blk_crr->root, 0); + HARD_CHECK_TREE(&blk_crr->crr, alc->flavor, blk_crr->root, 0); - rbt_insert(alc->bf_within_carrier, &blk_crr->root, blk); + rbt_insert(alc->flavor, &blk_crr->root, blk); - /* Update the carrier tree with a potential new (larger) max_sz + /* Update the carrier tree with a potentially new (larger) max_sz */ crr_node = &blk_crr->rbt_node; if (blk_sz > crr_node->hdr.bhdr) { @@ -683,15 +727,19 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block) if (!crr_node) break; } } - HARD_CHECK_TREE(&blk_crr->crr, alc->bf_within_carrier, blk_crr->root, 0); + HARD_CHECK_TREE(&blk_crr->crr, alc->flavor, blk_crr->root, 0); } static void -rbt_insert(int bestfit, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) +rbt_insert(enum AOFF_Flavor flavor, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) { Uint blk_sz = AOFF_BLK_SZ(blk); - blk->flags = 0; +#ifdef DEBUG + blk->flags = (flavor == AOFF_BF) ? IS_BF_FLG : 0; +#else + blk->flags = 0; +#endif blk->left = NULL; blk->right = NULL; blk->max_sz = blk_sz; @@ -704,10 +752,12 @@ rbt_insert(int bestfit, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) else { AOFF_RBTree_t *x = *root; while (1) { + SWord diff; if (x->max_sz < blk_sz) { x->max_sz = blk_sz; } - if (cmp_blocks(bestfit, blk, x) < 0) { + diff = cmp_blocks(flavor, blk, x); + if (diff < 0) { if (!x->left) { blk->parent = x; x->left = blk; @@ -715,7 +765,7 @@ rbt_insert(int bestfit, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) } x = x->left; } - else { + else if (diff > 0) { if (!x->right) { blk->parent = x; x->right = blk; @@ -723,6 +773,18 @@ rbt_insert(int bestfit, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) } x = x->right; } + else { + ASSERT(flavor == AOFF_BF); + ASSERT(blk->flags & IS_BF_FLG); + ASSERT(x->flags & IS_BF_FLG); + SET_LIST_ELEM(blk); + LIST_NEXT(blk) = LIST_NEXT(x); + LIST_PREV(blk) = x; + if (LIST_NEXT(x)) + LIST_PREV(LIST_NEXT(x)) = blk; + LIST_NEXT(x) = blk; + return; + } } /* Insert block into size tree */ @@ -732,6 +794,10 @@ rbt_insert(int bestfit, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) if (IS_RED(blk->parent)) tree_insert_fixup(root, blk); } + if (flavor == AOFF_BF) { + SET_TREE_NODE(blk); + LIST_NEXT(blk) = NULL; + } } static AOFF_RBTree_t* @@ -780,7 +846,7 @@ aoff_get_free_block(Allctr_t *allctr, Uint size, /* Get block within carrier tree */ #ifdef HARD_DEBUG - dbg_blk = HARD_CHECK_TREE(&crr->crr, alc->bf_within_carrier, crr->root, size); + dbg_blk = HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, size); #endif blk = rbt_search(crr->root, size); @@ -793,7 +859,7 @@ aoff_get_free_block(Allctr_t *allctr, Uint size, if (!blk) return NULL; - if (cand_blk && cmp_cand_blk(alc->bf_within_carrier, cand_blk, blk) < 0) { + if (cand_blk && cmp_cand_blk(alc->flavor, cand_blk, blk) < 0) { return NULL; /* cand_blk was better */ } @@ -813,7 +879,7 @@ static void aoff_creating_mbc(Allctr_t *allctr, Carrier_t *carrier) /* Link carrier in address order tree */ crr->rbt_node.hdr.bhdr = 0; - rbt_insert(0, root, &crr->rbt_node); + rbt_insert(AOFF_AOFF, root, &crr->rbt_node); /* aoff_link_free_block will add free block later */ crr->root = NULL; @@ -843,7 +909,7 @@ static void aoff_add_mbc(Allctr_t *allctr, Carrier_t *carrier) /* Link carrier in address order tree */ - rbt_insert(0, root, &crr->rbt_node); + rbt_insert(AOFF_AOFF, root, &crr->rbt_node); HARD_CHECK_TREE(NULL, 0, *root, 0); } @@ -883,6 +949,7 @@ static struct { Eterm as; Eterm aoff; Eterm aoffcaobf; + Eterm aoffcbf; #ifdef DEBUG Eterm end_of_atoms; #endif @@ -912,6 +979,7 @@ init_atoms(void) AM_INIT(as); AM_INIT(aoff); AM_INIT(aoffcaobf); + AM_INIT(aoffcbf); #ifdef DEBUG for (atom = (Eterm *) &am; atom < &am.end_of_atoms; atom++) { @@ -943,13 +1011,15 @@ info_options(Allctr_t *allctr, { AOFFAllctr_t* alc = (AOFFAllctr_t*) allctr; Eterm res = THE_NON_VALUE; + const char* flavor_str[3] = {"aoff", "aoffcaobf", "aoffcbf"}; + Eterm flavor_atom[3] = {am.aoff, am.aoffcaobf, am.aoffcbf}; if (print_to_p) { erts_print(*print_to_p, print_to_arg, "%sas: %s\n", prefix, - alc->bf_within_carrier ? "aoffcaobf" : "aoff"); + flavor_str[alc->flavor]); } if (hpp || szp) { @@ -959,8 +1029,7 @@ info_options(Allctr_t *allctr, __FILE__, __LINE__);; res = NIL; - add_2tup(hpp, szp, &res, am.as, - alc->bf_within_carrier ? am.aoffcaobf : am.aoff); + add_2tup(hpp, szp, &res, am.as, flavor_atom[alc->flavor]); } return res; @@ -978,6 +1047,7 @@ UWord erts_aoffalc_test(UWord op, UWord a1, UWord a2) { switch (op) { + case 0x500: return (UWord) ((AOFFAllctr_t *) a1)->flavor == AOFF_AOBF; case 0x501: { AOFF_RBTree_t *node = ((AOFFAllctr_t *) a1)->mbc_root; Uint size = (Uint) a2; @@ -987,10 +1057,13 @@ erts_aoffalc_test(UWord op, UWord a1, UWord a2) case 0x502: return (UWord) ((AOFF_RBTree_t *) a1)->parent; case 0x503: return (UWord) ((AOFF_RBTree_t *) a1)->left; case 0x504: return (UWord) ((AOFF_RBTree_t *) a1)->right; + case 0x505: return (UWord) LIST_NEXT(a1); case 0x506: return (UWord) IS_BLACK((AOFF_RBTree_t *) a1); + case 0x507: return (UWord) IS_TREE_NODE((AOFF_RBTree_t *) a1); case 0x508: return (UWord) 0; /* IS_BF_ALGO */ case 0x509: return (UWord) ((AOFF_RBTree_t *) a1)->max_sz; - case 0x50a: return (UWord) ((AOFFAllctr_t *) a1)->bf_within_carrier; + case 0x50a: return (UWord) ((AOFFAllctr_t *) a1)->flavor == AOFF_BF; + case 0x50b: return (UWord) LIST_PREV(a1); default: ASSERT(0); return ~((UWord) 0); } } @@ -1049,7 +1122,7 @@ static void print_tree(AOFF_RBTree_t*); */ static AOFF_RBTree_t * -check_tree(Carrier_t* within_crr, int bestfit, AOFF_RBTree_t* root, Uint size) +check_tree(Carrier_t* within_crr, enum AOFF_Flavor flavor, AOFF_RBTree_t* root, Uint size) { AOFF_RBTree_t *res = NULL; Sint blacks; @@ -1061,6 +1134,7 @@ check_tree(Carrier_t* within_crr, int bestfit, AOFF_RBTree_t* root, Uint size) #ifdef PRINT_TREE print_tree(root); #endif + ASSERT(within_crr || flavor == AOFF_AOFF); if (!root) return res; @@ -1116,6 +1190,20 @@ check_tree(Carrier_t* within_crr, int bestfit, AOFF_RBTree_t* root, Uint size) ASSERT(crr == within_crr); ASSERT((char*)x > (char*)crr); ASSERT(((char*)x + AOFF_BLK_SZ(x)) <= ((char*)crr + CARRIER_SZ(crr))); + + } + if (flavor == AOFF_BF) { + AOFF_RBTree_t* y = x; + AOFF_RBTree_t* nxt = LIST_NEXT(y); + ASSERT(IS_TREE_NODE(x)); + while (nxt) { + ASSERT(IS_LIST_ELEM(nxt)); + ASSERT(AOFF_BLK_SZ(nxt) == AOFF_BLK_SZ(x)); + ASSERT(FBLK_TO_MBC(&nxt->hdr) == within_crr); + ASSERT(LIST_PREV(nxt) == y); + y = nxt; + nxt = LIST_NEXT(nxt); + } } if (IS_RED(x)) { @@ -1127,13 +1215,13 @@ check_tree(Carrier_t* within_crr, int bestfit, AOFF_RBTree_t* root, Uint size) if (x->left) { ASSERT(x->left->parent == x); - ASSERT(cmp_blocks(bestfit, x->left, x) < 0); + ASSERT(cmp_blocks(flavor, x->left, x) < 0); ASSERT(x->left->max_sz <= x->max_sz); } if (x->right) { ASSERT(x->right->parent == x); - ASSERT(cmp_blocks(bestfit, x->right, x) > 0); + ASSERT(cmp_blocks(flavor, x->right, x) > 0); ASSERT(x->right->max_sz <= x->max_sz); } ASSERT(x->max_sz >= AOFF_BLK_SZ(x)); @@ -1142,7 +1230,7 @@ check_tree(Carrier_t* within_crr, int bestfit, AOFF_RBTree_t* root, Uint size) || x->max_sz == (x->right ? x->right->max_sz : 0)); if (size && AOFF_BLK_SZ(x) >= size) { - if (!res || cmp_blocks(bestfit, x, res) < 0) { + if (!res || cmp_blocks(flavor, x, res) < 0) { res = x; } } diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.h b/erts/emulator/beam/erl_ao_firstfit_alloc.h index e92cb5abb6..25b344c6a8 100644 --- a/erts/emulator/beam/erl_ao_firstfit_alloc.h +++ b/erts/emulator/beam/erl_ao_firstfit_alloc.h @@ -24,12 +24,17 @@ #include "erl_alloc_util.h" #define ERTS_ALC_AOFF_ALLOC_VSN_STR "0.9" -#define ERTS_ALC_AOFF_CBF_ALLOC_VSN_STR "0.9" typedef struct AOFFAllctr_t_ AOFFAllctr_t; +enum AOFF_Flavor { + AOFF_AOFF = 0, + AOFF_AOBF = 1, + AOFF_BF = 2 +}; + typedef struct { - int bf_within_carrier; + enum AOFF_Flavor flavor; } AOFFAllctrInit_t; #define ERTS_DEFAULT_AOFF_ALLCTR_INIT {0/*dummy*/} @@ -52,7 +57,7 @@ struct AOFFAllctr_t_ { Allctr_t allctr; /* Has to be first! */ struct AOFF_RBTree_t_* mbc_root; - int bf_within_carrier; + enum AOFF_Flavor flavor; }; UWord erts_aoffalc_test(UWord, UWord, UWord); diff --git a/erts/emulator/beam/erl_bestfit_alloc.c b/erts/emulator/beam/erl_bestfit_alloc.c index 58e53c3d00..41f449bb28 100644 --- a/erts/emulator/beam/erl_bestfit_alloc.c +++ b/erts/emulator/beam/erl_bestfit_alloc.c @@ -966,15 +966,17 @@ UWord erts_bfalc_test(UWord op, UWord a1, UWord a2) { switch (op) { - case 0x200: return (UWord) ((BFAllctr_t *) a1)->address_order; + case 0x200: return (UWord) ((BFAllctr_t *) a1)->address_order; /* IS_AOBF */ case 0x201: return (UWord) ((BFAllctr_t *) a1)->mbc_root; case 0x202: return (UWord) ((RBTree_t *) a1)->parent; case 0x203: return (UWord) ((RBTree_t *) a1)->left; case 0x204: return (UWord) ((RBTree_t *) a1)->right; - case 0x205: return (UWord) ((RBTreeList_t *) a1)->next; + case 0x205: return (UWord) LIST_NEXT(a1); case 0x206: return (UWord) IS_BLACK((RBTree_t *) a1); case 0x207: return (UWord) IS_TREE_NODE((RBTree_t *) a1); case 0x208: return (UWord) 1; /* IS_BF_ALGO */ + case 0x20a: return (UWord) !((BFAllctr_t *) a1)->address_order; /* IS_BF */ + case 0x20b: return (UWord) LIST_PREV(a1); default: ASSERT(0); return ~((UWord) 0); } } diff --git a/erts/emulator/test/alloc_SUITE_data/allocator_test.h b/erts/emulator/test/alloc_SUITE_data/allocator_test.h index c37b074f93..2d6c5f9dc7 100644 --- a/erts/emulator/test/alloc_SUITE_data/allocator_test.h +++ b/erts/emulator/test/alloc_SUITE_data/allocator_test.h @@ -102,7 +102,8 @@ typedef void* erts_cond; #define RBT_IS_TREE(T) ((Ulong) ALC_TEST1(RBT_OP(7), (T))) #define IS_BF_ALGO(A) ((Ulong) ALC_TEST1(RBT_OP(8), (A))) #define RBT_MAX_SZ(T) ((Ulong) ALC_TEST1(RBT_OP(9), (T))) -#define IS_CBF(A) ((Ulong) ALC_TEST1(RBT_OP(0xa), (A))) +#define IS_BF(A) ((Ulong) ALC_TEST1(RBT_OP(0xa), (A))) +#define RBT_PREV(T) ((RBTL_t *) ALC_TEST1(RBT_OP(0xb), (T))) /* From erl_mseg.c */ #define HAVE_MSEG() ((int) ALC_TEST0(0x400)) diff --git a/erts/emulator/test/alloc_SUITE_data/coalesce.c b/erts/emulator/test/alloc_SUITE_data/coalesce.c index 36710bf7b5..9da49a0d14 100644 --- a/erts/emulator/test/alloc_SUITE_data/coalesce.c +++ b/erts/emulator/test/alloc_SUITE_data/coalesce.c @@ -267,7 +267,7 @@ void testcase_run(TestCaseState_t *tcs) { char *argv_org[] = {"-tsmbcs511","-tmmbcs511", "-tsbct512", "-trmbcmt100", "-tas", NULL, NULL}; - char *alg[] = {"af", "gf", "bf", "aobf", "aoff", "aoffcaobf", NULL}; + char *alg[] = {"af", "gf", "bf", "aobf", "aoff", "aoffcbf", "aoffcaobf", NULL}; int i; for (i = 0; alg[i]; i++) { diff --git a/erts/emulator/test/alloc_SUITE_data/rbtree.c b/erts/emulator/test/alloc_SUITE_data/rbtree.c index 702f075304..49df2f0245 100644 --- a/erts/emulator/test/alloc_SUITE_data/rbtree.c +++ b/erts/emulator/test/alloc_SUITE_data/rbtree.c @@ -85,23 +85,21 @@ print_tree(TestCaseState_t *tcs, RBT_t *root) static RBT_t * check_tree(TestCaseState_t *tcs, Allctr_t *alc, Ulong size) { - enum { BF, AOBF, AOFF, AOFFCAOBF }type; + enum { BF, AOBF, AOFF } type; int i, max_i; char stk[128]; RBT_t *root, *x, *y, *res; Ulong x_sz, y_sz, is_x_black; long blacks, curr_blacks; + int have_max_sz; res = NULL; - if (IS_BF_ALGO(alc)) { - if (IS_AOBF(alc)) type = AOBF; - else type = BF; - } - else { /* AOFF_ALGO */ - if (IS_CBF(alc)) type = AOFFCAOBF; - else type = AOFF; - } + if (IS_AOBF(alc)) type = AOBF; + else if (IS_BF(alc)) type = BF; + else type = AOFF; + + have_max_sz = !IS_BF_ALGO(alc); root = RBT_ROOT(alc, size); @@ -191,17 +189,10 @@ check_tree(TestCaseState_t *tcs, Allctr_t *alc, Ulong size) break; case AOFF: ASSERT(tcs, y < x); - ASSERT(tcs, RBT_MAX_SZ(y) <= RBT_MAX_SZ(x)); break; - case AOFFCAOBF: - { - void* x_crr = BLK_TO_MBC(x); - void* y_crr = BLK_TO_MBC(y); - ASSERT(tcs, (y < x && (x_crr != y_crr || x_sz == y_sz)) - || (y_sz < x_sz && x_crr == y_crr)); - ASSERT(tcs, RBT_MAX_SZ(y) <= RBT_MAX_SZ(x)); - break; - } + } + if (have_max_sz) { + ASSERT(tcs, RBT_MAX_SZ(y) <= RBT_MAX_SZ(x)); } } @@ -219,27 +210,22 @@ check_tree(TestCaseState_t *tcs, Allctr_t *alc, Ulong size) break; case AOFF: ASSERT(tcs, y > x); - ASSERT(tcs, RBT_MAX_SZ(y) <= RBT_MAX_SZ(x)); break; - case AOFFCAOBF: - { - void* x_crr = BLK_TO_MBC(x); - void* y_crr = BLK_TO_MBC(y); - ASSERT(tcs, (y > x && (x_crr != y_crr || x_sz == y_sz)) - || (y_sz > x_sz && x_crr == y_crr)); - ASSERT(tcs, RBT_MAX_SZ(y) <= RBT_MAX_SZ(x)); - break; - } + } + if (have_max_sz) { + ASSERT(tcs, RBT_MAX_SZ(y) <= RBT_MAX_SZ(x)); } } if (type == BF) { Ulong l_sz; - RBTL_t *l = RBT_NEXT(x); + RBTL_t *l, *prev=x; for (l = RBT_NEXT(x); l; l = RBT_NEXT(l)) { l_sz = BLK_SZ(l); ASSERT(tcs, l_sz == x_sz); ASSERT(tcs, !RBT_IS_TREE(l)); + ASSERT(tcs, RBT_PREV(l) == prev); + prev = l; } } @@ -262,18 +248,7 @@ check_tree(TestCaseState_t *tcs, Allctr_t *alc, Ulong size) res = x; } break; - case AOFFCAOBF: - if (BLK_TO_MBC(x) != BLK_TO_MBC(res) || x_sz == y_sz) { - if (x < res) { - res = x; - } - } - else if (x_sz < y_sz) { - res = x; - } - break; } - } } @@ -310,7 +285,7 @@ do_check(TestCaseState_t *tcs, Allctr_t *a, Ulong size, int ignore_null) tmp = ALLOC(a, sz - ABLK_HDR_SZ); ASSERT(tcs, tmp); y = UMEM2BLK(tmp); - if (!(IS_BF_ALGO(a) && !IS_AOBF(a))) { + if (!IS_BF(a)) { ASSERT(tcs, x == y); } else { @@ -488,6 +463,7 @@ testcase_run(TestCaseState_t *tcs) char *argv2[] = {"-tasaobf", NULL}; char *argv3[] = {"-tasaoff", NULL}; char *argv4[] = {"-tasaoffcaobf", NULL}; + char *argv5[] = {"-tasaoffcbf", NULL}; Allctr_t *a; rbtree_test_data *td; @@ -511,6 +487,7 @@ testcase_run(TestCaseState_t *tcs) ASSERT(tcs, a); ASSERT(tcs, IS_BF_ALGO(a)); ASSERT(tcs, !IS_AOBF(a)); + ASSERT(tcs, IS_BF(a)); test_it(tcs); @@ -529,6 +506,7 @@ testcase_run(TestCaseState_t *tcs) ASSERT(tcs, a); ASSERT(tcs, IS_BF_ALGO(a)); ASSERT(tcs, IS_AOBF(a)); + ASSERT(tcs, !IS_BF(a)); test_it(tcs); @@ -546,7 +524,8 @@ testcase_run(TestCaseState_t *tcs) ASSERT(tcs, a); ASSERT(tcs, !IS_BF_ALGO(a)); - ASSERT(tcs, !IS_CBF(a)); + ASSERT(tcs, !IS_AOBF(a)); + ASSERT(tcs, !IS_BF(a)); test_it(tcs); test_carrier_migration(tcs); @@ -556,7 +535,7 @@ testcase_run(TestCaseState_t *tcs) testcase_printf(tcs, "Address order first fit test succeeded!\n"); - /* Address order first fit, best fit within carrier */ + /* Address order first fit, aobf within carrier */ testcase_printf(tcs, "Starting test of aoffcaobf...\n"); @@ -565,7 +544,28 @@ testcase_run(TestCaseState_t *tcs) ASSERT(tcs, a); ASSERT(tcs, !IS_BF_ALGO(a)); - ASSERT(tcs, IS_CBF(a)); + ASSERT(tcs, IS_AOBF(a)); + ASSERT(tcs, !IS_BF(a)); + + test_it(tcs); + test_carrier_migration(tcs); + + STOP_ALC(a); + td->allocator = NULL; + + testcase_printf(tcs, "aoffcaobf test succeeded!\n"); + + /* Address order first fit, bf within carrier */ + + testcase_printf(tcs, "Starting test of aoffcbf...\n"); + + current_rbt_type_op_base = AO_FIRSTFIT_OP_BASE; + td->allocator = a = START_ALC("rbtree_aoffcbf_", 0, argv5); + + ASSERT(tcs, a); + ASSERT(tcs, !IS_BF_ALGO(a)); + ASSERT(tcs, !IS_AOBF(a)); + ASSERT(tcs, IS_BF(a)); test_it(tcs); test_carrier_migration(tcs); |