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2018-12-06erts: Move fds with active true behaviour to own pollsetLukas Larsson
At start of the VM a poll-set that the schedulers will check is created where fds that have triggered many (at the moment, many means 10) times without being deselected inbetween. In this scheduler specific poll-set fds do not use ONESHOT, which means that the number of syscalls goes down dramatically for such fds. This pollset is introduced in order to handle fds that are used by the erlang distribution and that never change their state from {active, true}. This pollset only handles ready_input events, ready_output is still handled by the poll threads. During overload, polling the scheduler poll-set is done on a 10ms timer.
2017-10-02erts: Optimize port_task quick allocatorSverker Eriksson
for non scheduler threads by using ERTS_THR_PREF_QUICK_ALLOC_IMPL.
2017-10-02erts: Add multiple poll setsSverker Eriksson
2017-09-15erts: Remove undocumented driver_eventSverker Eriksson
2017-07-17erts: Replace usage of all erts_smp prefixes to just ertsLukas Larsson
2017-07-17erts: Cleanup removal of non-smp emulatorsLukas Larsson
2017-07-17erts: Remove ERTS_SMP and USE_THREAD definesLukas Larsson
This refactor was done using the unifdef tool like this: for file in $(find erts/ -name *.[ch]); do unifdef -t -f defile -o $file $file; done where defile contained: #define ERTS_SMP 1 #define USE_THREADS 1 #define DDLL_SMP 1 #define ERTS_HAVE_SMP_EMU 1 #define SMP 1 #define ERL_BITS_REENTRANT 1 #define ERTS_USE_ASYNC_READY_Q 1 #define FDBLOCK 1 #undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT #define ERTS_POLL_ASYNC_INTERRUPT_SUPPORT 0 #define ERTS_POLL_USE_WAKEUP_PIPE 1 #define ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE 1 #undef ERTS_HAVE_PLAIN_EMU #undef ERTS_SIGNAL_STATE
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
2017-05-16Merge pull request #1436 from garazdawi/lukas/erts/remove_unused_functionsLukas Larsson
erts: Remove old unused functions
2017-05-16erts: Remove old unused functionsLukas Larsson
The functions have been found using: https://github.com/caolanm/callcatcher
2017-05-05erts: Unbreak --enable-lock-checking --enable-lock-counterSverker Eriksson
both together. Broken in OTP-20.0-rc1 by 7d161f5b475575bd79bd90977b3a79334a8ec658.
2016-12-02erts: Remove unnecessary 'enable_lcnt' option in locksBjörn-Egil Dahlberg
2016-04-13Merge branch 'henrik/update-copyrightyear'Henrik Nord
* henrik/update-copyrightyear: update copyright-year
2016-03-29erts: Add enif_port_commandLukas Larsson
2016-03-15update copyright-yearHenrik Nord
2015-06-18Change license text to APLv2Bruce Yinhe
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
2014-08-22Ensure "runnable port" trace messages are not sent out of orderRickard Green
2014-02-24erts: Make source file info available in lcLukas Larsson
2013-11-26Ensure exit signal due to link precede port BIF returnRickard Green
2013-06-12Update copyright yearsBjörn-Egil Dahlberg
2013-05-06Only verify not busy for erlang:send(Port, Msg, [nosuspend]) until scheduledRickard Green
2012-12-07Merge branch 'rickard/port-optimizations/OTP-10336' into ↵Rickard Green
rickard/r16/port-optimizations/OTP-10336 * rickard/port-optimizations/OTP-10336: Change annotate level for emacs-22 in cerl Update etp-commands Add documentation on communication in Erlang Add support for busy port message queue Add driver callback epilogue Implement true asynchronous signaling between processes and ports Add erl_drv_[send|output]_term Move busy port flag Use rwlock for driver list Optimize management of port tasks Improve configuration of process and port tables Remove R9 compatibility features Use ptab functionality also for ports Prepare for use of ptab functionality also for ports Atomic port state Generalize process table implementation Implement functionality for delaying thread progress from unmanaged threads Conflicts: erts/doc/src/erl_driver.xml erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_bp.c erts/emulator/beam/beam_emu.c erts/emulator/beam/bif.c erts/emulator/beam/copy.c erts/emulator/beam/erl_alloc.c erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_bif_port.c erts/emulator/beam/erl_bif_trace.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_message.c erts/emulator/beam/erl_port_task.c erts/emulator/beam/erl_process.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_process_lock.c erts/emulator/beam/erl_trace.c erts/emulator/beam/export.h erts/emulator/beam/global.h erts/emulator/beam/io.c erts/emulator/sys/unix/sys.c erts/emulator/sys/vxworks/sys.c erts/emulator/test/port_SUITE.erl erts/etc/unix/cerl.src erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/src/prim_inet.erl lib/hipe/cerl/erl_bif_types.erl lib/kernel/doc/src/inet.xml lib/kernel/src/inet.erl
2012-12-07Add support for busy port message queueRickard Green
2012-12-07Implement true asynchronous signaling between processes and portsRickard Green
2012-12-03Move busy port flagRickard Green
2012-12-03Optimize management of port tasksRickard Green
2012-04-27Optimize process state changesRickard Green
2011-06-14Use new atomic API in runtime systemRickard Green
All uses of the old deprecated atomic API in the runtime system have been replaced with the use of the new atomic API. In a lot of places this change imply a relaxation of memory barriers used.
2011-03-11Update copyright yearsBjörn-Egil Dahlberg
2011-03-08The emulator could get into a state where it didn't check for I/O.Rickard Green
2010-12-15Use new atomic types in emulatorRickard Green
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP
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