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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.
2015-07-14Merge branch 'lukas/ose/remove/OTP-12573'Lukas Larsson
* lukas/ose/remove/OTP-12573: Remove OSE from erl_interface ose: Remove all code related to the OSE port
2015-07-10ose: Remove all code related to the OSE portLukas Larsson
The OSE port is no longer supported and this commit removed it and any changes related to it. The things that were general improvements have been left in the code.
2015-07-01erts: Remove halfword !HEAP_ON_C_STACKBjörn-Egil Dahlberg
2015-06-24erts: Remove halfword basic relative heap operationsBjörn-Egil Dahlberg
2015-06-24erts: Remove HALFWORD_HEAP definitionBjörn-Egil Dahlberg
2015-06-18Change license text to APLv2Bruce Yinhe
2015-06-17Merge branch 'rickard/io-bytes/OTP-12842'Rickard Green
* rickard/io-bytes/OTP-12842: Save IO bytes in scheduler specific data
2015-06-17Save IO bytes in scheduler specific dataRickard Green
2015-06-16erts: Refactor LCNTBjörn-Egil Dahlberg
2015-06-15erts: Add erts_factory_trim_and_closeSverker Eriksson
2015-06-15erts: Optimize driver_deliver_termSverker Eriksson
Try write directly to process heap (as before) if the term is guaranteed not to contain any big maps that may break the initial size estimation.
2015-06-15erts: Remove hashmap probabilistic heap overestimationSverker Eriksson
by adding a dynamic heap factory. "binary_to_term" is now a hybrid solution with both a call to decoded_size() to calculate needed heap space AND possible dynamic allocation of more heap space if needed for big maps. The heap size returned from decoded_size() is guaranteed to be sufficient for all term heap data except for hashmap nodes. All hashmap nodes are created at the end of dec_term() by invoking the heap factory interface that may allocate more heap space on process heap or in fragments. With this commit it is no longer guaranteed that a message is confined to only one heap fragment.
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
2015-05-08Optimized timer implementationRickard Green
2015-04-22Merge branch 'sverk/pr632/prevent-illegal-nif-terms/OTP-12655'Sverker Eriksson
* sverk/pr632/prevent-illegal-nif-terms/OTP-12655: erts: Reject non-finite float terms in erl_drv_output_term erts: Remove old docs about experimental NIF versions. erts: Add enif_has_pending_exception erts: Clearify erl_nif documentation about badarg exception erts: Fix compile warning in enif_make_double erts: Fix divide by zero compile error in nif_SUITE.c erts: Fix isfinite for windows Ensure NIF term creation disallows illegal values
2015-04-15erts: Reject non-finite float terms in erl_drv_output_termSverker Eriksson
2015-04-14erts: Refactor erts_queue_messageBjörn-Egil Dahlberg
2015-03-25erts: Combine flat and hash maps under one unifying tagBjörn-Egil Dahlberg
2015-03-22Merge branch 'maint'Anders Svensson
2015-03-20Merge branch 'rickard/time_api/OTP-11997'Rickard Green
* rickard/time_api/OTP-11997: (22 commits) Update primary bootstrap inets: Suppress deprecated warning on erlang:now/0 inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules inets: Update comments Suppress deprecated warning on erlang:now/0 Use new time API and be back-compatible in inets Remove unused functions and removed redundant test asn1 test SUITE: Eliminate use of now/0 Disable deprecated warning on erlang:now/0 in diameter_lib Use new time API and be back-compatible in ssh Replace all calls to now/0 in CT with new time API functions test_server: Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API otp_SUITE: Warn for calls to erlang:now/0 Replace usage of erlang:now() with usage of new API Multiple timer wheels Erlang based BIF timer implementation for scalability Implement ethread events with timeout ... Conflicts: bootstrap/bin/start.boot bootstrap/bin/start_clean.boot bootstrap/lib/compiler/ebin/beam_asm.beam bootstrap/lib/compiler/ebin/compile.beam bootstrap/lib/kernel/ebin/auth.beam bootstrap/lib/kernel/ebin/dist_util.beam bootstrap/lib/kernel/ebin/global.beam bootstrap/lib/kernel/ebin/hipe_unified_loader.beam bootstrap/lib/kernel/ebin/inet_db.beam bootstrap/lib/kernel/ebin/inet_dns.beam bootstrap/lib/kernel/ebin/inet_res.beam bootstrap/lib/kernel/ebin/os.beam bootstrap/lib/kernel/ebin/pg2.beam bootstrap/lib/stdlib/ebin/dets.beam bootstrap/lib/stdlib/ebin/dets_utils.beam bootstrap/lib/stdlib/ebin/erl_tar.beam bootstrap/lib/stdlib/ebin/escript.beam bootstrap/lib/stdlib/ebin/file_sorter.beam bootstrap/lib/stdlib/ebin/otp_internal.beam bootstrap/lib/stdlib/ebin/qlc.beam bootstrap/lib/stdlib/ebin/random.beam bootstrap/lib/stdlib/ebin/supervisor.beam bootstrap/lib/stdlib/ebin/timer.beam erts/aclocal.m4 erts/emulator/beam/bif.c erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_db_hash.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_thr_progress.c erts/emulator/beam/utils.c erts/emulator/sys/unix/sys.c erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam erts/preloaded/ebin/init.beam erts/preloaded/src/erts_internal.erl lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl lib/diameter/src/base/diameter_lib.erl lib/kernel/src/os.erl lib/ssh/test/ssh_basic_SUITE.erl system/doc/efficiency_guide/advanced.xml
2015-03-20Introduce a new time APIRickard Green
The old time API is based on erlang:now/0. The major issue with erlang:now/0 is that it was intended to be used for so many unrelated things. This tied these unrelated operations together and unnecessarily caused performance, scalability as well as accuracy, and precision issues for operations that do not need to have such issues. The new API spreads different functionality over multiple functions in order to improve on this. The new API consists of a number of new BIFs: - erlang:convert_time_unit/3 - erlang:monotonic_time/0 - erlang:monotonic_time/1 - erlang:system_time/0 - erlang:system_time/1 - erlang:time_offset/0 - erlang:time_offset/1 - erlang:timestamp/0 - erlang:unique_integer/0 - erlang:unique_integer/1 - os:system_time/0 - os:system_time/1 and a number of extensions of existing BIFs: - erlang:monitor(time_offset, clock_service) - erlang:system_flag(time_offset, finalize) - erlang:system_info(os_monotonic_time_source) - erlang:system_info(time_offset) - erlang:system_info(time_warp_mode) - erlang:system_info(time_correction) - erlang:system_info(start_time) See the "Time and Time Correction in Erlang" chapter of the ERTS User's Guide for more information.
2015-03-20Merge branch 'nox/fix-port_info-race' into maintZandra Hird
* nox/fix-port_info-race: Fix a race condition when calling port_info/1 OTP-12587
2015-03-19Merge branch 'egil/maps/hamt/OTP-12585'Björn-Egil Dahlberg
* egil/maps/hamt/OTP-12585: (113 commits) erts: Fix bug in ESTACK and WSTACK kernel: Add spec for erts_debug:map_info/1 mnesia: Update mnesia tests to reflect new ETS hash erts: Ensure maps uses _rel functions in halfword erts: Do not treat errors as fatal in erl_printf_term erts: Update preloaded erts_internal.beam erts: Add map decomposition wrappers erts: Ensure halfword has correct temp-heap for maps hipe: Handle separate hashmap tag correctly erts: Fix map bug in dec_term for 32-bit debug VM stdlib: Update qlc tests to reflect new ETS hash stdlib: Remove obsolete hashmap references in io_lib erts: Enhance maps ordering tests hipe: Fix maps sort order testcase erts: Remove unused variable in crashdump creation erts: Fix typo in copy_struct for halfword emulator erts: Restrict GCC intrinsics by compiler version erts: Fix windows bug in hashmap_info erts: Fix typo in make_hash2 for 32-bit arch Fix beam_load assert ... Conflicts: erts/emulator/beam/bif.tab
2015-03-19erts: Fix map bug in dec_term for 32-bit debug VMSverker Eriksson
Adding ERTS_SWORD_MAX to a pointer does not work as a way to disable a bound check. Remove the hp_end from ErtsHeapFactory as it isn't really used anyway.
2015-03-18Fix a race condition when calling port_info/1Anthony Ramine
This variable hold the values returned by erlang:port_info/1 and shouldn't be static. Reported-by: Heinz Nikolaus Gies
2015-03-17Merge branch 'maint'Rickard Green
* maint: Make access to control_flags safe in non-smp emulator
2015-03-17Merge branch 'rickard/port_control_flags_crash/OTP-12544' into maintRickard Green
* rickard/port_control_flags_crash/OTP-12544: Make access to control_flags safe in non-smp emulator
2015-03-12erts: Add hashmap construction to driver APIBjörn-Egil Dahlberg
2015-03-12erts: Refactor maps naming conventionSverker Eriksson
flatmap: Small map hashmap: Large map map: flatmap or hashmap
2015-03-06Make access to control_flags safe in non-smp emulatorRickard Green
2015-02-03Merge branch 'maint'Zandra Hird
Conflicts: OTP_VERSION erts/emulator/sys/unix/sys.c erts/vsn.mk
2015-01-23erts: Check driver version before assigning callbackBjörn-Egil Dahlberg
2015-01-23erts: Don't lookup invalid port for crashdump handlingBjörn-Egil Dahlberg
2015-01-23erts: Use emergency close to close epmdBjörn-Egil Dahlberg
Closes all open socket before writing crashdump to file.
2015-01-13erts: Extend driver interface with emergency_closeBjörn-Egil Dahlberg
The intention of this callback is to close all sockets associated to a port. It is closed only on crashdumps. This will currently only be used for the epmd port.
2014-12-02erts: Add compile time assert ERTS_CT_ASSERTSverker Eriksson
and usage
2014-09-17Merge branch 'sverk/bin-alloc-refactor'Sverker Eriksson
* sverk/bin-alloc-refactor: erts: Fix gdb command etp-carrier-blocks for 32-bit erts: Refactor binary allocation interface to also initialize Binary
2014-09-12erts: Remove enif_have_dirty_schedulers()Sverker Eriksson
and add 'dirty_scheduler_support' to ErlNifSysInfo
2014-09-04erts: Refactor binary allocation interface to also initialize BinarySverker Eriksson
except the reference counter 'refc', as different callers have different strategies regarding the lifetime of the binary.
2014-08-22Ensure "runnable port" trace messages are not sent out of orderRickard Green
2014-08-22Ensure "runnable proc" trace messages are not sent out of orderRickard Green
2014-08-14Merge branch 'nox/clang-ubsan/OTP-12097' into maintLukas Larsson
* nox/clang-ubsan/OTP-12097: Properly handle SINT_MIN in small_to_big() Use offsetof() in io.c
2014-07-09erts: Add histogram to lcntBjörn-Egil Dahlberg
2014-07-02Use offsetof() in io.cAnthony Ramine
This silences the following UBSan errors: beam/io.c:7131:27: runtime error: member access within null pointer of type 'ErlDrvSysInfo' beam/io.c:7140:20: runtime error: member access within null pointer of type 'ErlDrvSysInfo' beam/io.c:7166:20: runtime error: member access within null pointer of type 'ErlDrvSysInfo' beam/io.c:7174:20: runtime error: member access within null pointer of type 'ErlDrvSysInfo'
2014-03-25Merge branch 'sverk/win-warning-io'Sverker Eriksson
* sverk/win-warning-io: erts: Fix compile warning in io.c for windows
2014-03-25erts: Fix compile warning in io.c for windowsSverker Eriksson
2014-03-25Merge branch 'paulgray/dtrace_snprintf_fix/OTP-11816'Lukas Larsson
* paulgray/dtrace_snprintf_fix/OTP-11816: Fix DTrace/SystemTap-related formatting
2014-03-25Fix DTrace/SystemTap-related formattingScott Lystig Fritchie
Thanks to Michał Ptaszek for bringing this embarrassing formatting error to my attention. Many DTrace/SystemTap trace strings are incorrectly truncated at 4/8 bytes, depending on the CPU word size. This patch expands the work from commit d032e097 by zheng siyao. Michał's report to the erlang-bugs list can be found at: http://erlang.org/pipermail/erlang-bugs/2014-March/004250.html Conflicts: erts/emulator/beam/beam_emu.c erts/emulator/beam/copy.c erts/emulator/beam/dist.c erts/emulator/beam/erl_async.c erts/emulator/beam/erl_bif_port.c erts/emulator/beam/erl_port_task.c erts/emulator/beam/erl_process.c erts/emulator/beam/io.c
2014-03-25Merge branch 'paulgray/dtrace_snprintf_fix/OTP-11816'Lukas Larsson
* paulgray/dtrace_snprintf_fix/OTP-11816: Pass full strings to DTrace probes
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