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path: root/erts/emulator/beam/erl_alloc_util.h
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2017-09-07Replace ad-hoc MIN/MAX macros with common onesJohn Högberg
Besides being noisy, they were already defined by a global Unix- specific header, causing the Windows build to fail if one forgot to define them.
2017-07-06Merge branch 'john/erts/runtime-lcnt' into maintJohn Högberg
* john/erts/runtime-lcnt: Document rt_mask and add warnings about copy_save Add an emulator test suite for lock counting Break erts_debug:lock_counters/1 into separate BIFs Allow toggling lock counting at runtime Move lock flags to a common header Enable register_SUITE for lcnt builds Enable lcnt smoke test on all builds that have lcnt enabled Make lock counter info independent of the locks being counted OTP-14412 OTP-13170 OTP-14413
2017-07-06Allow toggling lock counting at runtimeJohn Högberg
The implementation is still hidden behind ERTS_ENABLE_LOCK_COUNT, and all categories are still enabled by default, but the actual counting can be toggled at will. OTP-13170
2017-06-14Update copyright yearHans Nilsson
2017-05-21erts: Make allocator functions staticSalikhov Dinislam
2016-11-22Merge branch 'maint'Sverker Eriksson
2016-11-17erts: Refactor crash dumping with cbprintfSverker Eriksson
Instead of passing around a file descriptor use a function pointer to facilitate more advanced backend write logic such as size limitation or compression.
2016-10-14erts: Enable exec_alloc for all hipe architecturesSverker Eriksson
For non-amd64 it's a "normal" allocator with a wrapper around mseg_alloc to call mprotect(PROT_EXEC).
2016-04-20Merge branch 'sverker/hipe-code-alloc'Sverker Eriksson
2016-04-20erts: Make sure literal MBCs have super aligned sizesSverker Eriksson
on 32-bit, as the granularity of the literal bit vector is super-alignment.
2016-04-15erts: Refactor callbacks for literal mseg allocSverker Eriksson
Make the callbacks more general to be usable for any allocator that that uses its own ErtsMemMapper.
2016-04-13Merge branch 'henrik/update-copyrightyear'Henrik Nord
* henrik/update-copyrightyear: update copyright-year
2016-04-06erts: Add lttng tracepoints for memory carriersBjörn-Egil Dahlberg
* carrier_create * carrier_destroy * carrier_pool_put * carrier_pool_get
2016-03-15update copyright-yearHenrik Nord
2015-11-27Merge branch 'maint'Sverker Eriksson
2015-11-12erts: Add support for fast erts_is_literal()Sverker Eriksson
2015-10-01erts: Fix confusion of callbacks destroying_mbc() vs remove_mbc()Sverker Eriksson
Problem #1 Goodfit was crippled by the fact that destroying_mbc() was called _before_ the carriers was unlinked from mbc_list. Problem #2 destroying_mbc() was called for carriers that later could be resurrected from dc_list without a matching call to creating_mbc(). This was mostly a practical problem for the new test case alloc_SUITE:migration that use the callbacks to create/destroy a mutex. Solution: destroying_mbc() is now only called just before a carrier is destroyed (deallocated or put in mseg cache). remove_mbc() is called both (like before) when inserted into cpool but now also when last block is freed and mbc is scheduled for destruction but may later be resurrected from dc_list.
2015-09-11erts: Fix strangeness in treatment of MSEG_ALIGN_BITSSverker Eriksson
And remove old case of using only page alignment (12 bits).
2015-06-24erts: Remove HALFWORD_HEAP definitionBjörn-Egil Dahlberg
2015-06-18Change license text to APLv2Bruce Yinhe
2014-10-03erts: Add pooled_list and traitor_listSverker Eriksson
2013-11-05Add switch for disabling sys_alloc carriersRickard Green
The switch "+Musac <boolean>" controls if sys_alloc carriers are allowed.
2013-09-30erts: Remove ASSERT_EXPR macroSverker Eriksson
2013-09-25Merge branch 'rickard/aligned-sys_alloc-carriers/OTP-11318' into ↵Rickard Green
rickard/aligned-sys_alloc-carriers_maint/OTP-11318 Conflicts: erts/emulator/beam/erl_alloc.c erts/emulator/beam/erl_alloc_util.c erts/emulator/beam/erl_alloc_util.h
2013-09-25Implement platform specific aligned sys_alloc and use when supportedRickard Green
erts_sys_aligned_alloc() is currently implemented using posix_memalign if it exist, or using _aligned_malloc on Windows. If erts_sys_aligned_alloc() exist allocators will create sys_alloc carriers similar to how this was done pre-R16.
2013-06-12Update copyright yearsBjörn-Egil Dahlberg
2013-06-04erts: Use carrier pool for migration of carriersRickard Green
2013-06-04erts: Implement carrier poolRickard Green
2013-06-04erts: Use Uint64 for call countsRickard Green
2013-06-03erts: Remove unnecessary flag arguments in allocatorsSverker Eriksson
A cleanup after SBMBC was removed.
2013-06-03erts: Remove SBMBC allocatorSverker Eriksson
2013-06-03erts: Change naive list to rb-tree of carriers in AOFF allocatorSverker Eriksson
and add new callbacks add_mbc(), remove_mbc() and largest_fblk_in_mbc() for carrier migration.
2013-06-03erts: Prepare aoff allocator for carrier migrationSverker Eriksson
by putting blocks from different carrier into separate search trees. Carriers are currently organized in a naive linked list by address order.
2013-06-03erts: Make carrier header sizes customizableSverker Eriksson
This is a modified partial revert of 2ab1d972f6fd37c17b05
2013-06-03erts: Add "bestfit within carrier" for aoff allocator (aoffcbf)Sverker Eriksson
2013-05-06erts: Change some more 'long' to pointer sized int (ErlDrvUInt)Sverker Eriksson
2012-12-14erts: Set super alignment (256kb) and limits for sbct (8Mb) and lmbcs (128Mb)Sverker Eriksson
2012-12-14erts: Force sbmbc to be disabled in a crude waySverker Eriksson
2012-12-14erts: Fix new header scheme for win64Sverker Eriksson
2012-11-21erts: Make carrier header sizes compile time constantsSverker Eriksson
No allocator strategy is using customized carrier headers anyway.
2012-11-15erts: Enable new header scheme without super alignment on 64-bitSverker Eriksson
2012-11-15erts: Add carrier pointer to header of free blockSverker Eriksson
2012-11-15erts: Save one word per block for thread preferred allocatorsSverker Eriksson
by making use of the new block header scheme to find the carrier header and thereby the allocator.
2012-11-15erts: Change single carrier block header flagsSverker Eriksson
to allow realloc to determine block size (in MBC or SBC) without having to read the footer of the previous block that might be written to by concurrent thread.
2012-11-15erts: Add carrier offset to internal allocation headersSverker Eriksson
2012-02-19Misc memory barrier fixesRickard Green
- Document barrier semantics - Introduce ddrb suffix on atomic ops - Barrier macros for both non-SMP and SMP case - Make the thread progress API a bit more intuitive
2011-12-02Iron out bugs in Win64 found in daily buildsPatrik Nyblom
Almost all uses of the 'long' datatype is removed from VM and tests Emulator test now runs w/o drivers crashing Nasty abs bug fixed in VM as well as type errors in allocator debug functions Still one allocator test that fails, domain knowledge is needed to fix that. Fix type inconsistency in beam_load causing crashes
2011-11-13Optimize memory allocationRickard Green
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.
2011-07-08Use separate memory carriers for small blocksRickard Green
2011-05-09Expand the use of high memory allocation in halfword emulatorSverker Eriksson
Also add 'low' field in system_info(allocator) SHORT_LIVED is still in low memory