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authorSverker Eriksson <sverker@erlang.org>2012-12-04 17:57:51 +0100
committerBjörn-Egil Dahlberg <egil@erlang.org>2012-12-14 15:12:59 +0100
commit0fb68ef1f8c7f44c6f7edc1cc461d2b598b96fd9 (patch)
treece092b1f446a5325b1789424956f34ae00d92868 /erts/emulator
parent6c95e5c7bc376a2b04cdd9b23d0441fa9bee9e78 (diff)
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erts: Set super alignment (256kb) and limits for sbct (8Mb) and lmbcs (128Mb)
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/erl_alloc_util.h3
-rw-r--r--erts/emulator/sys/common/erl_mseg.h3
2 files changed, 4 insertions, 2 deletions
diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h
index 423bb0517e..e0754e7f69 100644
--- a/erts/emulator/beam/erl_alloc_util.h
+++ b/erts/emulator/beam/erl_alloc_util.h
@@ -226,7 +226,8 @@ erts_aint32_t erts_alcu_fix_alloc_shrink(Allctr_t *, erts_aint32_t);
# ifdef ARCH_64
# define MBC_ABLK_OFFSET_BITS 24
# elif HAVE_SUPER_ALIGNED_MB_CARRIERS
-# define MBC_ABLK_OFFSET_BITS 13
+# define MBC_ABLK_OFFSET_BITS 9
+ /* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */
# endif
#endif
#ifndef MBC_ABLK_OFFSET_BITS
diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index 8f8cb0e121..6f373f13f9 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -39,7 +39,8 @@
#endif
#if HAVE_SUPER_ALIGNED_MB_CARRIERS
-# define MSEG_ALIGN_BITS (17)
+# define MSEG_ALIGN_BITS (18)
+ /* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */
#else
/* If we don't use super aligned multiblock carriers
* we will mmap with page size alignment (and thus use corresponding