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-rw-r--r--erts/doc/src/erts_alloc.xml21
-rw-r--r--erts/emulator/beam/erl_alloc.c6
2 files changed, 14 insertions, 13 deletions
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml
index a303ad18a6..9ea2e7a6b5 100644
--- a/erts/doc/src/erts_alloc.xml
+++ b/erts/doc/src/erts_alloc.xml
@@ -315,16 +315,17 @@
<c><![CDATA[<utilization>]]></c> is an integer in the range
<c>[0, 100]</c> representing utilization in percent. When a
utilization value larger than zero is used, allocator instances
- are allowed to abandon multiblock carriers. Currently the default
- is zero. If <c>de</c> (default enabled) is passed instead of a
- <c><![CDATA[<utilization>]]></c>, a recomended non zero utilization
- value will be used. The actual value chosen depend on allocator
- type and may be changed between ERTS versions. Carriers will be
- abandoned when memory utilization in the allocator instance falls
- below the utilization value used. Once a carrier has been abandoned,
- no new allocations will be made in it. When an allocator instance
- gets an increased multiblock carrier need, it will first try to
- fetch an abandoned carrier from an allocator instances of the same
+ are allowed to abandon multiblock carriers. If <c>de</c> (default
+ enabled) is passed instead of a <c><![CDATA[<utilization>]]></c>,
+ a recomended non zero utilization value will be used. The actual
+ value chosen depend on allocator type and may be changed between
+ ERTS versions. Currently the default equals <c>de</c>, but this
+ may be changed in the future. Carriers will be abandoned when
+ memory utilization in the allocator instance falls below the
+ utilization value used. Once a carrier has been abandoned, no new
+ allocations will be made in it. When an allocator instance gets an
+ increased multiblock carrier need, it will first try to fetch an
+ abandoned carrier from an allocator instances of the same
allocator type. If no abandoned carrier could be fetched, it will
create a new empty carrier. When an abandoned carrier has been
fetched it will function as an ordinary carrier. This feature has
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index a547191d6d..65f1f64c03 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -75,9 +75,9 @@
#define ERTS_ALC_DEFAULT_ENABLED_ACUL_EHEAP_ALLOC 45
#define ERTS_ALC_DEFAULT_ENABLED_ACUL_LL_ALLOC 85
-#define ERTS_ALC_DEFAULT_ACUL 0
-#define ERTS_ALC_DEFAULT_ACUL_EHEAP_ALLOC 0
-#define ERTS_ALC_DEFAULT_ACUL_LL_ALLOC 0
+#define ERTS_ALC_DEFAULT_ACUL ERTS_ALC_DEFAULT_ENABLED_ACUL
+#define ERTS_ALC_DEFAULT_ACUL_EHEAP_ALLOC ERTS_ALC_DEFAULT_ENABLED_ACUL_EHEAP_ALLOC
+#define ERTS_ALC_DEFAULT_ACUL_LL_ALLOC ERTS_ALC_DEFAULT_ENABLED_ACUL_LL_ALLOC
#ifndef ERTS_SMP
# undef ERTS_ALC_DEFAULT_ACUL