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2015-11-18Refactor sharing preserved copy flagsBjörn-Egil Dahlberg
The TMPBUF option is no longer needed due to is_literal test and NONE was only used for initial debugging. So we remove the entire option.
2015-11-17Do not use GCC extensions in copyBjörn-Egil Dahlberg
2015-11-17Use copy literal range check in message passing and purgingBjörn-Egil Dahlberg
2015-11-17Copy literals in copy sharingBjörn-Egil Dahlberg
2015-11-17Refactor copy sharingBjörn-Egil Dahlberg
2015-11-17Add --enable-sharing-preserving configure flagYiannis Tsiouris
2015-11-17Add -debug +vc flag for debuging SHCOPYNikolaos S. Papaspyrou
This is very verbose, you have been warned. It should work with the copy-spy.py script, which may be a bit outdated.
2015-11-17Add machinery to enable SHCOPY dynamicallyNikolaos S. Papaspyrou
This commit is just for debugging purposes, will probably be reverted. It comes with a the erts_debug:copy_shared/1 BIF. If SHCOPY_DISABLE is defined, SHCOPY starts disabled and is dynamically enabled the first time that the BIF is called.
2015-11-17Enable shcopy for sending messagesNikolaos S. Papaspyrou
2015-11-17Add the BIF size_shared/1 and debug cleanupNikolaos S. Papaspyrou
2015-11-17Add all the main machineryNikolaos S. Papaspyrou
Add functions size_shared, copy_shared_calculate and copy_shared_perform. Add the infrastructure for making these communicate with each other. Add debug information to other places in the VM, to watch interaction with the sharing-preserving copy. CAUTION: If you define the SHCOPY_DEBUG macro (after SHCOPY is actually used in the VM) and make the whole OTP, there will be a lot of debugging messages during make (it will also be enabled in erlc). You have been warned...
2015-11-16An implementation of lightweight unbounded queuesNikolaos S. Papaspyrou
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.
2015-11-12Introduce literal tagRickard Green
2015-07-01erts: Remove halfword !HEAP_ON_C_STACKBjörn-Egil Dahlberg
2015-06-24erts: Reinstate copy_object over-allocation optimizationBjörn-Egil Dahlberg
2015-06-24erts: Remove halfword object manipulationBjörn-Egil Dahlberg
* Remove macros size_object_rel, copy_struct_rel and copy_shallow_rel
2015-06-24erts: Remove HALFWORD_HEAP definitionBjörn-Egil Dahlberg
2015-06-18Change license text to APLv2Bruce Yinhe
2015-06-15erts: Yield in maps:mergeSverker Eriksson
2015-06-02erts: Add save/restore for PSTACKSverker Eriksson
2015-06-01erts: Fix magic binary alignment on 32-bitSverker Eriksson
Caused bus error on 32-bit sparc from unaligned 64-bit word in binary_to_term trap context. Also add _UNALIGNED_ magic macros to avoid double alignment padding in NIF resources.
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
2015-05-06erts: Don't let the compiler optimize pos. zero fixBjörn-Egil Dahlberg
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
2015-03-20Merge 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
2015-03-20Erlang based BIF timer implementation for scalabilityRickard Green
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.
2015-03-19erts: Fix bug in ESTACK and WSTACKSverker Eriksson
The [ew]default field would get uninitialised when the stack was saved and later restored. Detected by valgrind.
2015-03-15Ensure NIF term creation disallows illegal valuesSteve Vinoski
Add a check to enif_make_double to see if its double argument is infinity or NaN, returning a badarg exception if it is. Change the erl_nif documentation to specify that enif_make_double returns a badarg exception if its double argument is either infinity or NaN. Add tests to nif_SUITE for this change. Add checks to the enif_make* functions for atoms to prevent the creation of atoms whose name lengths are greater than the allowed maximum atom length. The enif_make_atom and enif_make_atom_len functions now return a badarg exception if the input string is too long. The enif_make_existing_atom and enif_make_existing_atom_len functions return false if the input string is too long. Change the erl_nif documentation to reflect the changes to these functions. Add tests to nif_SUITE for these changes. Add a field to ErlNifEnv to track that a NIF has raised an exception via enif_make_badarg. If a NIF calls enif_make_badarg but then ignores its return value and instead tries to return a non-exception term as its return value, the runtime still raises a badarg. This is needed to prevent enif_make_badarg values resulting from calls to enif_make_double, enif_make_atom, or enif_make_atom_len from being erroneously stored within other terms and returned from a NIF. Calling enif_make_badarg but not returning its return value has been documented as being illegal ever since enif_make_badarg was added, but the runtime has not enforced it until now. Add tests for regular and dirty NIFs to ensure that calls to enif_make_badarg result in badarg exceptions even if a NIF fails to return the result of enif_make_badarg as its return value. Add documentation to enif_make_badarg to specify that calling it raises a badarg even if a NIF ignores its return value.
2015-03-12erts: Fix nif API for hashmapsSverker Eriksson
2015-03-12erts: Make ESTACK usable through pointerBjörn-Egil Dahlberg
2015-03-12erts: Make hashmap compare non-recursiveSverker Eriksson
2015-03-12erts: Make WSTACK usable through pointerSverker Eriksson
2015-03-12erts: Add PSTACKSverker Eriksson
A lightweight stack that can be used to store any type. PUSH and POP return pointers into stack slots.
2015-03-12erts: Add RESERVE and FAST_PUSH for ESTACK & WSTACKSverker Eriksson
2015-03-12Initial Persistent HAMT - Map frameworkBjörn-Egil Dahlberg
Conflicts: erts/emulator/Makefile.in erts/emulator/beam/bif.tab erts/emulator/beam/erl_gc.c erts/emulator/beam/erl_gc.h erts/emulator/beam/erl_printf_term.c erts/emulator/beam/erl_term.c erts/emulator/beam/erl_term.h
2015-02-03Merge branch 'maint'Zandra Hird
Conflicts: OTP_VERSION erts/emulator/sys/unix/sys.c erts/vsn.mk
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.
2014-11-03Merge branch 'sverk/yielding-distr-send/OTP-12232'Sverker Eriksson
* sverk/yielding-distr-send/OTP-12232: erts: Add constant TERM_TO_BINARY_MEMCPY_FACTOR erts: Optimize some repeated calls to {E,W}STACK_PUSH erts: Yield in term_to_binary when encoding big maps erts: Remove unnecessary goto for fun encoding erts: Yield in term_to_binary while copying large binaries erts: Implement yielding for distributed send of large messages
2014-10-24erts: Make hipe_{un}reserve_beam_trap_frame INLINESverker Eriksson
2014-08-29erts: Optimize some repeated calls to {E,W}STACK_PUSHSverker Eriksson
2014-08-29erts: Yield in term_to_binary when encoding big mapsSverker Eriksson
2014-06-11Merge branch 'nox/fix-perms' into maintHenrik Nord
* nox/fix-perms: Fix permissions of some files in the repository
2014-05-25Fix permissions of some files in the repositoryAnthony Ramine
These files aren't supposed to be executable. For reference, the command used to find them was: git ls-files -z | xargs -0 -J % find % -type f -perm ++x
2014-05-22Make binary BIFs converting from lists yield on large inputRickard Green
- erlang:list_to_binary/1 - erlang:iolist_to_binary/1 - erlang:list_to_bitstring/1 - binary:list_to_bin/1
2014-01-28erts: Add the size-testing guard BIF map_size/1Björn-Egil Dahlberg
2014-01-22erts: Fix halfword compile errors in ESTACKSverker Eriksson
Errors introduced in 172ebf11dc455e2
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