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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.
2016-05-17Merge branch 'sverker/hipe-amd64-code-alloc/OTP-13359'Sverker Eriksson
This merge is actually only some left overs. The bulk work for hipe-amd64-code-alloc has already been merge (without ticket number) at 42a1166b47721cd444.
2016-05-09Merge branch 'sverker/system_info-erts_mmap/OTP-13560'Sverker Eriksson
2016-05-04erts: Show exec_alloc as disabled when not usedSverker Eriksson
2016-05-04erts: Refactor ERTS_ALC_INFO_A_* constantsSverker Eriksson
as an enum and replace _MAX with _END
2016-05-04erts: Add Sender in 'receive' trace matchspecSverker Eriksson
All 'EXIT' and monitor messages are sent from 'system' Timeouts are "sent" from 'clock_service'
2016-05-04erts: Add macro HAVE_ERTS_MMAPSverker Eriksson
and make erts_mmap unavailable at compile time if not supported.
2016-04-29erts: Fix system_info({allocator_sizes, mseg_alloc})Sverker Eriksson
will now return [{instance,0,[{segments_size,9961472,9961472,11010048}]}, {instance,1,[{segments_size,6291456,6291456,6815744}]}, {instance,2,[{segments_size,524288,524288,786432}]}, {instance,3,[{segments_size,1048576,1048576,1835008}]}, {instance,4,[{segments_size,0,0,262144}]}] and not just empty lists.
2016-04-29erts: Add erts_mmap to system_info(allocator)Sverker Eriksson
to the Settings list {Allocator, Version, Features, Settings}
2016-04-29erts: Add literal_mmap and exec_mmap to system_infoSverker Eriksson
erlang:system_info(allocator) -> {Allocator, Version, Features, Settings} Features includes 'literal_mmap' and/or 'exec_mmap' if they exist.
2016-04-20erts: Produce statistics for literal and hipe super carriersSverker Eriksson
called 'literal_mmap' and 'exec_mmap'. Also moved existing erts_mmap info from 'mseg_alloc' to its own system_info({allocator, erts_mmap}) with "allocators" default_mmap, literal_mmap and exec_mmap.
2016-04-20Merge branch 'sverker/hipe-code-alloc'Sverker Eriksson
2016-04-15erts: Add 'exec_alloc' for hipe codeSverker Eriksson
that uses its own super carrier (erts_exec_mmapper) to guarantee low addressed and executable memory (PROT_EXEC). Currently only used on x86_64 that needs low memory for HiPE/AMD64's small code model. By initializing erts_exec_mapper early we secure its low memory area before erts_literal_mmapper might steal it.
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.
2016-04-15erts: Tweak defaults for literal allocatorSverker Eriksson
Reduce main carrier size and number of free descriptors.
2016-04-15erts: Implement tracer modulesLukas Larsson
Add the possibility to use modules as trace data receivers. The functions in the module have to be nifs as otherwise complex trace probes will be very hard to handle (complex means trace probes for ports for example). This commit changes the way that the ptab->tracer field works from always being an immediate, to now be NIL if no tracer is present or else be the tuple {TracerModule, TracerState} where TracerModule is an atom that is later used to lookup the appropriate tracer callbacks to call and TracerState is just passed to the tracer callback. The default process and port tracers have been rewritten to use the new API. This commit also changes the order which trace messages are delivered to the potential tracer process. Any enif_send done in a tracer module may be delayed indefinitely because of lock order issues. If a message is delayed any other trace message send from that process is also delayed so that order is preserved for each traced entity. This means that for some trace events (i.e. send/receive) the events may come in an unintuitive order (receive before send) to the trace receiver. Timestamps are taken when the trace message is generated so trace messages from differented processes may arrive with the timestamp out of order. Both the erlang:trace and seq_trace:set_system_tracer accept the new tracer module tracers and also the backwards compatible arguments. OTP-10267
2016-04-13Merge branch 'henrik/update-copyrightyear'Henrik Nord
* henrik/update-copyrightyear: update copyright-year
2016-04-04Merge tag 'OTP-18.3.1'Henrik Nord
=== OTP-18.3.1 === Changed Applications: - erts-7.3.1 - inets-6.2.1 - mnesia-4.13.4 Unchanged Applications: - asn1-4.0.2 - common_test-1.12 - compiler-6.0.3 - cosEvent-2.2 - cosEventDomain-1.2 - cosFileTransfer-1.2 - cosNotification-1.2.1 - cosProperty-1.2 - cosTime-1.2.1 - cosTransactions-1.3.1 - crypto-3.6.3 - debugger-4.1.2 - dialyzer-2.9 - diameter-1.11.2 - edoc-0.7.18 - eldap-1.2.1 - erl_docgen-0.4.2 - erl_interface-3.8.2 - et-1.5.1 - eunit-2.2.13 - gs-1.6 - hipe-3.15 - ic-4.4 - jinterface-1.6.1 - kernel-4.2 - megaco-3.18 - observer-2.1.2 - odbc-2.11.1 - orber-3.8.1 - os_mon-2.4 - ose-1.1 - otp_mibs-1.1 - parsetools-2.1.1 - percept-0.8.11 - public_key-1.1.1 - reltool-0.7 - runtime_tools-1.9.3 - sasl-2.7 - snmp-5.2.2 - ssh-4.2.2 - ssl-7.3 - stdlib-2.8 - syntax_tools-1.7 - test_server-3.10 - tools-2.8.3 - typer-0.9.10 - webtool-0.9.1 - wx-1.6.1 - xmerl-1.3.10 Conflicts: OTP_VERSION erts/emulator/test/save_calls_SUITE.erl erts/vsn.mk
2016-03-16erts: Create erl_crash.dump when out of memoryLukas Larsson
This was accidentally removed in commit cd6903be0740db
2016-03-15update copyright-yearHenrik Nord
2016-03-08Merge branch 'sverk/literal-alloc-polish'Sverker Eriksson
* sverk/literal-alloc-polish: erts: Add emulator flag +MIscs for literal super carrier size erts: Refactor init of erts_literal_mmapper erts: Make literal_alloc documented and configurable
2016-03-01Merge branch 'sverk/halt-INT_MIN' into maintSverker Eriksson
OTP-13251 * sverk/halt-INT_MIN: erts: Make erlang:halt() accept bignums as Status erts: Change erl_exit into erts_exit kernel: Remove calls to erl_exit
2016-02-24Merge branch 'master' into sverk/master/halt-INT_MINSverker Eriksson
2016-02-24erts: Change erl_exit into erts_exitSverker Eriksson
This is mostly a pure refactoring. Except for the buggy cases when calling erlang:halt() with a positive integer in the range -(INT_MIN+2) to -INT_MIN that got confused with ERTS_ABORT_EXIT, ERTS_DUMP_EXIT and ERTS_INTR_EXIT. Outcome OLD erl_exit(n, ) NEW erts_exit(n, ) ------- ------------------- ------------------------------------------- exit(Status) n = -Status <= 0 n = Status >= 0 crashdump+abort n > 0, ignore n n = ERTS_ERROR_EXIT < 0 The outcome of the old ERTS_ABORT_EXIT, ERTS_INTR_EXIT and ERTS_DUMP_EXIT are the same as before (even though their values have changed).
2016-02-23erts: Add emulator flag +MIscs for literal super carrier sizeSverker Eriksson
2016-02-23erts: Refactor init of erts_literal_mmapperSverker Eriksson
2016-02-23erts: Make literal_alloc documented and configurableSverker Eriksson
Except it cannot be disabled and cannot be multi-threaded. The bit-vector 'erts_literal_vspace_map' on 32-bit is currently only protected by the literal allocator mutex. We could allow multiple instances on 64-bit (I think), but what would be the point?
2016-02-08Merge branch 'sverk/thread-unsafe-alloc'Sverker Eriksson
* sverk/thread-unsafe-alloc: erts: Fix faulty assert for non-smp erts: Add checks for thread safe allocation
2016-02-03Merge branch 'maint'Lukas Larsson
* maint: erts: When erts_alloc fails, the emulator no longer aborts
2016-02-02erts: Add ERTS_WRITE_UNLIKELYLukas Larsson
ERTS_WRITE_UNLIKELY can be used to place global variables in a specific section where only data that is very rarely modified sits. This is used to improve cache locality.
2016-01-27erts: When erts_alloc fails, the emulator no longer abortsLukas Larsson
2016-01-21erts: Add checks for thread safe allocationSverker Eriksson
Assert thread unsafe allocator is only created on non-smp and only called by the main thread. Removed test of unsafe allocator in custom thread.
2015-12-08Merge branch 'rickard/ohmq-fixup/OTP-13047'Rickard Green
* rickard/ohmq-fixup/OTP-13047: Replace off_heap_message_queue option with message_queue_data option Always use literal_alloc Distinguish between GC disabled by BIFs and other disabled GC Fix process_info(_, off_heap_message_queue) Off heap message queue test suite Remove unused variable Fix memory leaks
2015-12-08Always use literal_allocRickard Green
2015-11-27Merge branch 'maint'Sverker Eriksson
2015-11-26erts: Improve alloc_SUITE:migration testSverker Eriksson
In the quest to improve code coverage in cpool_fetch
2015-11-12Fragmented young heap generation and off_heap_message_queue optionRickard Green
* The youngest generation of the heap can now consist of multiple blocks. Heap fragments and message fragments are added to the youngest generation when needed without triggering a GC. After a GC the youngest generation is contained in one single block. * The off_heap_message_queue process flag has been added. When enabled all message data in the queue is kept off heap. When a message is selected from the queue, the message fragment (or heap fragment) containing the actual message is attached to the youngest generation. Messages stored off heap is not part of GC.
2015-11-12erts: Add support for fast erts_is_literal()Sverker Eriksson
2015-11-12erts: Refactor erl_mmap to allow several mapper instancesSverker Eriksson
2015-11-10erts: Add alloc_SUITE:migrationSverker Eriksson
2015-11-10erts: Add TEST allocatorSverker Eriksson
2015-09-11erts: Add new allocator LITERALSverker Eriksson
2015-09-11erts: Cleanup main carrier creationSverker Eriksson
and remove that magic "-40" from default mmbcs for ll_alloc
2015-06-24erts: Remove HALFWORD_HEAP definitionBjörn-Egil Dahlberg
2015-06-18Change license text to APLv2Bruce Yinhe
2015-06-16Revert "Add thread index to allocator enomem dump slogan"Björn-Egil Dahlberg
This reverts commit 5d5f9c1857029d7e8e1de141e29d20dd3de929be.
2015-06-09Disable accessor timer optionRickard Green
2015-05-12Merge branch 'rickard/timer-optimization/OTP-12650'Rickard Green
* rickard/timer-optimization/OTP-12650: Timer fixes, documentation, and test cases Conflicts: erts/emulator/beam/erl_hl_timer.c
2015-05-12Timer fixes, documentation, and test casesRickard Green
2015-05-08Merge branch 'rickard/timer-optimization/OTP-12650'Rickard Green
* rickard/timer-optimization/OTP-12650: Optimized timer implementation Reusable red-black tree implementation Conflicts: erts/emulator/beam/erl_bif_timer.c