aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/erl_init.c
AgeCommit message (Collapse)Author
2015-06-24erts: Remove HALFWORD_HEAP definitionBjörn-Egil Dahlberg
2015-06-18Change license text to APLv2Bruce Yinhe
2015-06-15Merge branch 'rickard/+zebwt/OTP-12830'Rickard Green
* rickard/+zebwt/OTP-12830: ETS busy wait option
2015-06-15ETS busy wait optionRickard Green
Conflicts: erts/emulator/beam/erl_init.c erts/etc/common/erlexec.c
2015-06-15Merge branch 'sverk/map-merge-trap'Sverker Eriksson
* sverk/map-merge-trap: erts: Optimize maps:merge erts: Yield in maps:merge erts: Refactor arg swapping for maps:merge erts: Add save/restore for PSTACK erts: Fix magic binary alignment on 32-bit erts: Add maps to send_term_SUITE erts: Fix calculation of reclaimed data during full gc erts: Fix warning about const pointer to make_boxed and make_list erts: Fix typo in etp-carrier-blocks
2015-06-15erts: Yield in maps:mergeSverker Eriksson
2015-06-10Merge branch 'rickard/delayed-delete-node/OTP-12802'Rickard Green
* rickard/delayed-delete-node/OTP-12802: Fix error checking for +zdntgc flag
2015-06-10Fix error checking for +zdntgc flagRickard Green
2015-06-10Merge branch 'rickard/delayed-delete-node/OTP-12802'Rickard Green
* rickard/delayed-delete-node/OTP-12802: Delayed node table GC
2015-06-10Delayed node table GCRickard Green
2015-05-28Merge branch 'richcarl/warnings-by-default/OTP-12781'Björn-Egil Dahlberg
* richcarl/warnings-by-default/OTP-12781: stdlib: Use warning channel in test qlc_SUITE:otp_6964/1 stdlib: Fix testcase for qlc_SUITE kernel: Fix code_SUITE with respect to new logger default Map error logger warnings to warning messages by default
2015-05-22Map error logger warnings to warning messages by defaultRichard Carlsson
Also fix and document the broken +We option.
2015-05-20Revert "Map error logger warnings to warning messages by default"Zandra Hird
This reverts commit 4c4d7fa40e5fb59854724ce74b8aa3546525cb90. This pr is causing some test failures that were missed at first.
2015-05-18Map error logger warnings to warning messages by defaultRichard Carlsson
Also fix and document the broken +We option.
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
2015-04-21Merge branch 'sverk/etp-map'Sverker Eriksson
* sverk/etp-map: erts: Add map support to gdb etp command erts: Add etp_the_non_value
2015-04-16erts: Remove instruction_count command optionBjörn-Egil Dahlberg
* We use compile directive icount instead
2015-04-10erts: Add etp_the_non_valueSverker Eriksson
for a correct (non)value regardless of build type.
2015-03-21Merge branch 'rickard/time_api/OTP-11997'Rickard Green
* rickard/time_api/OTP-11997: Unbreak lcnt
2015-03-21Unbreak lcntRickard Green
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
2015-03-20Multiple timer wheelsRickard Green
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.
2015-03-12Merge branch 'egil/process_dictionary-initial-size/OTP-12535'Björn-Egil Dahlberg
* egil/process_dictionary-initial-size/OTP-12535: erts: Document option 'hpds' erts: Enable command line argument for initial pd size
2015-03-04erts: Enable command line argument for initial pd sizeBjörn-Egil Dahlberg
Use '+hpds size' to set initial process dictionary size for spawned processes.
2014-10-27Merge branch 'egil/fix-instruction-counter'Björn-Egil Dahlberg
* egil/fix-instruction-counter: erts: Fix SMP for ERTS_OPCODE_COUNTER_SUPPORT erts: Add icount build type for opcode counter
2014-10-16erts: Fix SMP for ERTS_OPCODE_COUNTER_SUPPORTBjörn-Egil Dahlberg
Cleanup macro code.
2014-09-25No eager check I/O on OSERickard Green
2014-09-25Merge branch 'rickard/eager-check-io/OTP-12117' into ↵Rickard Green
rickard/maint-17/eager-check-io/OTP-12117 * rickard/eager-check-io/OTP-12117: Introduce support for eager check I/O scheduling Conflicts: erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_process.c erts/preloaded/ebin/erlang.beam
2014-09-25Introduce support for eager check I/O schedulingRickard Green
2014-08-08erts: Fix neg int overflow when sint is min sizeLukas Larsson
When INT64_MIN is the value of a Sint64 we have to first cast it to an Uint64 before negating it. Otherwise we get an integer overflow which is undefined behaviour and in gcc 4.9 this results in -0 instead of -9223372036854775808 in gcc 4.8.
2014-05-22Make binary BIFs converting to lists yield on large inputRickard Green
- erlang:binary_to_list/1 - erlang:binary_to_list/3 - erlang:bitstring_to_list/1
2014-02-24Merge branch 'lukas/ose/master/OTP-11334'Lukas Larsson
* lukas/ose/master/OTP-11334: (71 commits) erts: Fix unix efile assert ose: Use -O2 when building ose: Expand OSE docs ose: Add dummy ttsl driver ose: Cleanup cleanup of mutex selection defines ose: Polish mmap configure checks ose: Add ose specific x-compile flags ose: Updating fd_driver and spawn_driver for OSE ose: Updating event and signal API for OSE ose: Cleanup of mutex selection defines win32: Compile erl_log.exe ose: Remove uneccesary define ose: Fix ssl configure test for osx erts: Fix sys_msg_dispatcher assert ose: Fix broken doc links ose: Thread priorities configurable from lmconf ose: Yielding the cpu is done "the OSE" way ose: Start using ppdata for tse key ose: Do not use spinlocks on OSE ose: Fix support for crypto ... Conflicts: lib/crypto/c_src/crypto.c
2014-02-24ose,erts: Specify name for tsd keysLukas Larsson
This simplified debugging on OSE and also limits the number of ppdata keys that are created when beam is restarted.
2014-02-24ose: Force atleast one async thread for oseLukas Larsson
This is needed because a file has to be opened and operated on in the same process at all times. Using async threads guarantee this.
2014-02-24further enhancements for dirty schedulersSteve Vinoski
Add support for setting the number of dirty CPU schedulers online via erlang:system_flag/2. Assuming the emulator is built with dirty schedulers enabled, the number of dirty CPU schedulers online may not be less than 1, nor greater than the number of dirty CPU schedulers available, nor greater than the number of normal schedulers online. Dirty CPU scheduler threads that are taken offline via system_flag/2 are suspended. The number of dirty CPU schedulers online may be adjusted independently of the number of normal schedulers online, but if system_flag/2 is used to set the number of normal schedulers online to a value less than the current number of normal schedulers online, the number of dirty CPU schedulers online is decreased proportionally. Likewise, if the number of normal schedulers online is increased, the number of dirty CPU schedulers online is increased proportionally. For example, if 8 normal schedulers and 4 dirty CPU schedulers are online, and system_flag/2 is called to set the number of normal schedulers online to 4, the number of dirty CPU schedulers online is also decreased by half, to 2. Subsequently setting the number of normal schedulers online back to 8 also sets the number of dirty CPU schedulers online back to 4. Augment the system_flag/2 documentation in the erlang man page to explain this relationship between schedulers_online and dirty_cpu_schedulers_online. Also ensure that all dirty CPU and I/O schedulers are suspended when multi-scheduling is blocked via system_flag/2, and brought back online when multi-scheduling is unblocked. Add Rickard Green's rewritten check_enqueue_in_prio_queue() function that inspects process state more thoroughly to determine if to enqueue it and if so on what queue, including dirty queues when appropriate. Make sure dirty NIF jobs do not trigger erlang:system_monitor long_schedule messages. Add more dirty scheduler testing to the scheduler test suite. Remove the erts_no_dirty_cpu_schedulers_online global variable, since it's no longer needed. Execute dirty NIFs on a normal scheduler thread while multi-scheduling blocking is in effect. Evacuate any dirty jobs residing in the dirty run queues over to a normal run queue when multi-scheduling is blocked. Allow dirty schedulers to execute aux work. Set the dirty run queues halt_in_progress flag when halting the normal schedulers. Change dirty scheduler numbers to a structure including both scheduler number and type, either dirty CPU or dirty I/O. Add some assertions to ensure that dirty CPU schedulers operate only on dirty CPU scheduler process flags, and the same for dirty I/O schedulers.
2014-02-17allow optional whitespace in dirty scheduler erl optionsSteve Vinoski
The +SDcpu, +SDPcpu, and +SDio options did not properly handle having their arguments immediately following them without intervening whitespace, e.g. +SDio20 was treated as an error. Fix all the dirty scheduler command line options so they handle optional whitespace between them and their associated arguments.
2014-01-28initial support for dirty schedulers and dirty NIFsSteve Vinoski
Add initial support for dirty schedulers. There are two types of dirty schedulers: CPU schedulers and I/O schedulers. By default, there are as many dirty CPU schedulers as there are normal schedulers and as many dirty CPU schedulers online as normal schedulers online. There are 10 dirty I/O schedulers (similar to the choice of 10 as the default for async threads). By default, dirty schedulers are disabled and conditionally compiled out. To enable them, you must pass --enable-dirty-schedulers to the top-level configure script when building Erlang/OTP. Current dirty scheduler support requires the emulator to be built with SMP support. This restriction will be lifted in the future. You can specify the number of dirty schedulers with the command-line options +SDcpu (for dirty CPU schedulers) and +SDio (for dirty I/O schedulers). The +SDcpu option is similar to the +S option in that it takes two numbers separated by a colon: C1:C2, where C1 specifies the number of dirty schedulers available and C2 specifies the number of dirty schedulers online. The +SDPcpu option allows numbers of dirty CPU schedulers available and dirty CPU schedulers online to be specified as percentages, similar to the existing +SP option for normal schedulers. The number of dirty CPU schedulers created and dirty CPU schedulers online may not exceed the number of normal schedulers created and normal schedulers online, respectively. The +SDio option takes only a single number specifying the number of dirty I/O schedulers available and online. There is no support yet for programmatically changing at run time the number of dirty CPU schedulers online via erlang:system_flag/2. Also, changing the number of normal schedulers online via erlang:system_flag(schedulers_online, NewSchedulersOnline) should ensure that there are no more dirty CPU schedulers than normal schedulers, but this is not yet implemented. You can retrieve the number of dirty schedulers by passing dirty_cpu_schedulers, dirty_cpu_schedulers_online, or dirty_io_schedulers to erlang:system_info/1. Currently only NIFs are able to access dirty scheduler functionality. Neither drivers nor BIFs currently support dirty schedulers. This restriction will be addressed in the future. If dirty scheduler support is present in the runtime, the initial status line Erlang prints before presenting its interactive prompt will include the indicator "[ds:C1:C2:I]" where "ds" indicates "dirty schedulers", "C1" indicates the number of dirty CPU schedulers available, "C2" indicates the number of dirty CPU schedulers online, and "I" indicates the number of dirty I/O schedulers. Document The dirty NIF API in the erl_nif man page. The API closely follows Rickard Green's presentation slides from his talk "Future Extensions to the Native Interface", presented at the 2011 Erlang Factory held in the San Francisco Bay Area. Rickard's slides are available online at http://bit.ly/1m34UHB . Document the new erl command-line options, the additions to erlang:system_info/1, and also add the erlang:system_flag/2 dirty scheduler documentation even though it's not yet implemented. To determine whether the dirty NIF API is available, native code can check to see whether the C preprocessor macro ERL_NIF_DIRTY_SCHEDULER_SUPPORT is defined. To check if dirty schedulers are available at run time, native code can call the boolean enif_have_dirty_schedulers() function, and Erlang code can call erlang:system_info(dirty_cpu_schedulers), which raises badarg if no dirty scheduler support is available. Add a simple dirty NIF test to the emulator NIF suite.
2014-01-24Disable scheduler utilization balancing if +scl true is passedRickard Green
2014-01-23Add support for scheduler utilization balancingRickard Green
For more information see documentation of the new command line argument +sub
2014-01-10erts: Replace tab with space for proper alignmentLukas Larsson
2013-09-02Silence gcc warnings in non-smp buildLukas Larsson
2013-08-29add erl option to set schedulers by percentagesSteve Vinoski
For applications where measurements show enhanced performance from the use of a non-default number of emulator scheduler threads, having to accurately set the right number of scheduler threads across multiple hosts each with different numbers of logical processors is difficult because the erl +S option requires absolute numbers of scheduler threads and scheduler threads online to be specified. To address this issue, add a +SP option to erl, similar to the existing +S option but allowing the number of scheduler threads and scheduler threads online to be set as percentages of logical processors configured and logical processors available, respectively. For example, "+SP 50:25" sets the number of scheduler threads to 50% of the logical processors configured, and the number of scheduler threads online to 25% of the logical processors available. The +SP option also interacts with any settings specified with the +S option, such that the combination of options "+S 4:4 +SP 50:50" (in either order) results in 2 scheduler threads and 2 scheduler threads online. Add documentation for the +SP option. Add tests for the +SP option to scheduler_SUITE. Add tests and documentation for two existing features of the +S option: +S 0:0 resets the scheduler thread count and scheduler threads online count to their defaults, and specifying negative numbers for +S results in those values being subtracted from the default values for the host.
2013-07-09Make emulator arguments available via the system_info BIFRickard Green
erlang:system_info(emu_args)
2013-06-12Merge branch 'rickard/+sfwi/OTP-11164' into maintRickard Green
* rickard/+sfwi/OTP-11164: erts: Add the +sfwi system flag
2013-06-11erts: Add the +sfwi system flagRickard Green
+sfwi Interval Set scheduler forced wakeup interval. All run queues will be scanned each Interval milliseconds. While there are sleeping schedulers in the system, one scheduler will be woken for each non-empty run queue found. An Interval of zero disables this feature, which also is the default. This feature has been introduced as a temporary workaround for lengthy executing native code, and native code that do not bump reductions properly in OTP. When these bugs have be fixed the +sfwi flag will be removed.
2013-06-04Make term_to_binary yield (trap).happi
2013-05-31Merge branch 'lukas/erts/gc_stat_contention/OTP-10271' into maintLukas Larsson
* lukas/erts/gc_stat_contention/OTP-10271: Replace gc stat lock with sched spec data
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 01:58:09 +0000