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| author | Rickard Green <[email protected]> | 2010-09-15 22:14:51 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2011-11-13 20:39:30 +0100 |
| commit | a67e91e658bdbba24fcc3c79b06fdf10ff830bc9 (patch) | |
| tree | 07f9e6b1fd715d516d2571521307fe1b9d7c3948 /lib/runtime_tools | |
| parent | 55358c54778ead444e51f565d00175ba887ef182 (diff) | |
| download | otp-a67e91e658bdbba24fcc3c79b06fdf10ff830bc9.tar.gz otp-a67e91e658bdbba24fcc3c79b06fdf10ff830bc9.tar.bz2 otp-a67e91e658bdbba24fcc3c79b06fdf10ff830bc9.zip | |
Optimize memory allocation
A number of memory allocation optimizations have been implemented. Most
optimizations reduce contention caused by synchronization between
threads during allocation and deallocation of memory. Most notably:
* Synchronization of memory management in scheduler specific allocator
instances has been rewritten to use lock-free synchronization.
* Synchronization of memory management in scheduler specific
pre-allocators has been rewritten to use lock-free synchronization.
* The 'mseg_alloc' memory segment allocator now use scheduler specific
instances instead of one instance. Apart from reducing contention
this also ensures that memory allocators always create memory
segments on the local NUMA node on a NUMA system.
Diffstat (limited to 'lib/runtime_tools')
| -rw-r--r-- | lib/runtime_tools/src/erts_alloc_config.erl | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/runtime_tools/src/erts_alloc_config.erl b/lib/runtime_tools/src/erts_alloc_config.erl index 0bcb202fd8..1a57c94443 100644 --- a/lib/runtime_tools/src/erts_alloc_config.erl +++ b/lib/runtime_tools/src/erts_alloc_config.erl @@ -1,6 +1,7 @@ +%% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2009. All Rights Reserved. +%% Copyright Ericsson AB 2007-2010. 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 @@ -16,6 +17,7 @@ %% The Initial Developer of the Original Code is Ericsson AB. %% %% %CopyrightEnd% +%% %%%------------------------------------------------------------------- %%% File : erts_alloc_config.erl @@ -71,6 +73,7 @@ A == binary_alloc; A == std_alloc; A == ets_alloc; + A == fix_alloc; A == eheap_alloc; A == ll_alloc; A == sl_alloc; @@ -94,6 +97,7 @@ [{binary_alloc, 131072}, {std_alloc, 131072}, {ets_alloc, 131072}, + {fix_alloc, 131072}, {eheap_alloc, 524288}, {ll_alloc, 2097152}, {sl_alloc, 131072}, @@ -104,6 +108,7 @@ [{binary_alloc, 10}, {std_alloc, 10}, {ets_alloc, 10}, + {fix_alloc, 10}, {eheap_alloc, 10}, {ll_alloc, 0}, {sl_alloc, 10}, @@ -438,9 +443,6 @@ conf_alloc(#conf{format_to = FTO} = Conf, #alloc{name = A} = Alc) -> chk_xnote(Conf, Alc). chk_xnote(#conf{format_to = FTO}, - #alloc{name = fix_alloc}) -> - fcp(FTO, "Cannot be configured."); -chk_xnote(#conf{format_to = FTO}, #alloc{name = sys_alloc}) -> fcp(FTO, "Cannot be configured. Default malloc implementation used."); chk_xnote(#conf{format_to = FTO}, |