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| author | Sverker Eriksson <[email protected]> | 2011-02-01 20:01:52 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2011-02-03 19:31:14 +0100 |
| commit | 2e0181837dbe96a4ce738a339a9a02a6e26746f8 (patch) | |
| tree | 41add3cbfdbb5fdfd9798dad9f33ad4a2592df8e /erts/emulator/beam/erl_vm.h | |
| parent | 677d59fc6d76360dc5ad996bdf91a4c05293b52d (diff) | |
| download | otp-2e0181837dbe96a4ce738a339a9a02a6e26746f8.tar.gz otp-2e0181837dbe96a4ce738a339a9a02a6e26746f8.tar.bz2 otp-2e0181837dbe96a4ce738a339a9a02a6e26746f8.zip | |
HALFWORD ETS match spec heap fragment optimization
Introduce HAllocX to allocate heap fragments with a larger capacity
than requested and by that reduce the number of fragments allocated.
Diffstat (limited to 'erts/emulator/beam/erl_vm.h')
| -rw-r--r-- | erts/emulator/beam/erl_vm.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index 48fa99934e..d6daf0cc4b 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2010. All Rights Reserved. + * Copyright Ericsson AB 1996-2011. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -120,14 +120,15 @@ * Allocate heap memory, first on the ordinary heap; * failing that, in a heap fragment. */ -#define HAlloc(p, sz) \ +#define HAllocX(p, sz, xtra) \ (ASSERT_EXPR((sz) >= 0), \ ErtsHAllocLockCheck(p), \ (IS_FORCE_HEAP_FRAGS || (((HEAP_LIMIT(p) - HEAP_TOP(p)) < (sz))) \ - ? erts_heap_alloc((p),(sz)) \ + ? erts_heap_alloc((p),(sz),(xtra)) \ : (INIT_HEAP_MEM(p,sz), \ HEAP_TOP(p) = HEAP_TOP(p) + (sz), HEAP_TOP(p) - (sz)))) +#define HAlloc(P, SZ) HAllocX(P,SZ,0) #define HRelease(p, endp, ptr) \ if ((ptr) == (endp)) { \ |