diff options
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 14 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_db_hash.c | 42 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_db_util.h | 1 |
3 files changed, 32 insertions, 25 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index a05ca5c602..757b69787a 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -3026,6 +3026,7 @@ do { \ if (i == 0) { StoreBifResult(4, Op1); } + ires = big_size(Op1); goto big_shift; } } else if (is_big(Op2)) { @@ -3041,7 +3042,6 @@ do { \ OpCase(i_bsl_jIssd): GetArg2(2, Op1, Op2); - do_bsl: if (is_small(Op2)) { i = signed_val(Op2); @@ -3067,16 +3067,12 @@ do { \ StoreBifResult(4, Op1); } } - Op1 = small_to_big(ires, tmp_big); -#ifdef TAG_LITERAL_PTR - Op1 |= TAG_LITERAL_PTR; -#endif + ires = 1; /* big_size(small_to_big(Op1)) */ big_shift: if (i > 0) { /* Left shift. */ - ires = big_size(Op1) + (i / D_EXP); + ires += (i / D_EXP); } else { /* Right shift. */ - ires = big_size(Op1); if (ires <= (-i / D_EXP)) ires = 3; /* ??? */ else @@ -3095,6 +3091,9 @@ do { \ goto lb_Cl_error; } TestHeapPreserve(ires+1, Arg(1), Op1); + if (is_small(Op1)) { + Op1 = small_to_big(signed_val(Op1), tmp_big); + } bigp = HTOP; Op1 = big_lshift(Op1, i, bigp); if (is_big(Op1)) { @@ -3117,6 +3116,7 @@ do { \ if (i == 0) { StoreBifResult(4, Op1); } + ires = big_size(Op1); goto big_shift; } } else if (is_big(Op2)) { diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c index 74979f984a..12ae086b31 100644 --- a/erts/emulator/beam/erl_db_hash.c +++ b/erts/emulator/beam/erl_db_hash.c @@ -2866,15 +2866,7 @@ db_lookup_dbterm_hash(Process *p, DbTable *tbl, Eterm key, Eterm obj, q->hvalue = hval; q->next = NULL; *bp = b = q; - - { - int nitems = erts_smp_atomic_inc_read_nob(&tb->common.nitems); - int nactive = NACTIVE(tb); - - if (nitems > nactive * (CHAIN_LEN + 1) && !IS_FIXED(tb)) { - grow(tb, nactive); - } - } + flags |= DB_INC_TRY_GROW; } else { HashDbTerm *q, *next = b->next; @@ -2910,6 +2902,7 @@ db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle) HashDbTerm **bp = (HashDbTerm **) handle->bp; HashDbTerm *b = *bp; erts_smp_rwmtx_t* lck = (erts_smp_rwmtx_t*) handle->lck; + HashDbTerm* free_me = NULL; ERTS_SMP_LC_ASSERT(IS_HASH_WLOCKED(tb, lck)); /* locked by db_lookup_dbterm_hash */ @@ -2921,21 +2914,34 @@ db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle) b->hvalue = INVALID_HASH; } else { *bp = b->next; - free_term(tb, b); + free_me = b; } WUNLOCK_HASH(lck); erts_smp_atomic_dec_nob(&tb->common.nitems); try_shrink(tb); - } else if (handle->flags & DB_MUST_RESIZE) { - db_finalize_resize(handle, offsetof(HashDbTerm,dbterm)); - WUNLOCK_HASH(lck); - - free_term(tb, b); - } - else { - WUNLOCK_HASH(lck); + } else { + if (handle->flags & DB_MUST_RESIZE) { + db_finalize_resize(handle, offsetof(HashDbTerm,dbterm)); + free_me = b; + } + if (handle->flags & DB_INC_TRY_GROW) { + int nactive; + int nitems = erts_smp_atomic_inc_read_nob(&tb->common.nitems); + WUNLOCK_HASH(lck); + nactive = NACTIVE(tb); + + if (nitems > nactive * (CHAIN_LEN + 1) && !IS_FIXED(tb)) { + grow(tb, nactive); + } + } else { + WUNLOCK_HASH(lck); + } } + + if (free_me) + free_term(tb, free_me); + #ifdef DEBUG handle->dbterm = 0; #endif diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h index 60f7067d70..4acedbfed0 100644 --- a/erts/emulator/beam/erl_db_util.h +++ b/erts/emulator/beam/erl_db_util.h @@ -79,6 +79,7 @@ typedef union db_table DbTable; #define DB_MUST_RESIZE 1 #define DB_NEW_OBJECT 2 +#define DB_INC_TRY_GROW 4 /* Info about a database entry while it's being updated * (by update_counter or update_element) |