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2019-01-17Write some more comments in the engine loopRaimo Niskanen
2019-01-17Work around a compiler mis-optimizationRaimo Niskanen
The common subexpression optimization accidentally caused unnecessary spilling of live registers. A rather ugly workaround can be found in loop_timeouts_cancel.
2019-01-17Move out helper functions to engine loopRaimo Niskanen
This strategy improves speed benchmarks and reduces the amount of garbage that is produced. More: * Handle transition options as loop function arguments instead of in a record. * Shorten the state_enter loop and make it more efficient by making it more part of the loop and less a loop restart. * Simplify the internal timeout action handling somewhat.
2019-01-15Handle #trans_opts{} fields in parse_actions() argumentsRaimo Niskanen
2019-01-14Optimize gen_statem engine loopRaimo Niskanen
* Use synchronolus cancel_timer since that is more efficient than asynchronous when a process cancels its own timer * Restructure the state to have fewer fields by breaking out practically constant fields into a separate loop argument record #params{}, group state and data into one field and dito for timer fields * Optimize engine loop arguments for staying in the loop so the detour to sys:handle_system_message/6 will require packing/unpacking of the sys: state, and of the argument Parent * Avoid double reverse of event queue in many cases * Restructure the state transition to not have duplicate tracks for sys_debug and non-sys_debug cases * Shortcut the empty list case where possible * Loop unroll reversal of up to 2-element lists to avoid calling lists:reverse/2 since an external call spills all live registers to the stack * Bring out the callback mode check to the engine loop
2019-01-14Modify generic_statem_transit benchmarkRaimo Niskanen
Instead of just changing states; also start a state_timeout that gets cancelled by the state change. I think it is important to have efficient timer handling.
2018-12-17Merge branch 'raimo/stdlib/sys-log-of-gen-in-terminate-report/OTP-15381'Raimo Niskanen
* raimo/stdlib/sys-log-of-gen-in-terminate-report/OTP-15381: sys:log timeout 0 events Filter gen_server State in crash sys:log Fix statement duplication Document system_events better Adjust sys:log(N, get) to documentation Unify system_events in gen_* Log code change Use from/1 type check Limit more error_logger terms Add client stacktrace Print sys:log in error report Optimize sys:handle_debug/4 Optimize sys:log Fix sys:log functionality Conflicts: lib/stdlib/doc/src/sys.xml
2018-12-14Merge branch 'maint'Lukas Larsson
2018-12-14Merge branch 'lukas/stdlib/maps_iterator_docs' into maintLukas Larsson
2018-12-13Merge branch 'maint'Sverker Eriksson
2018-12-12Add empty 'since' attribute for old modules and functionsSverker Eriksson
2018-12-11Add "since" attributes in xml for new functions and modulesSverker Eriksson
introduced after OTP_R13B03.
2018-12-11Merge branch 'maint'Henrik Nord
* maint: Updated OTP version Prepare release
2018-12-10Prepare releaseErlang/OTP
2018-12-10stdlib: Update maps:iterator docs to not show iteratorLukas Larsson
The example should not show the iterator as that is an internal value and if changed can confuse the reader of the documentation. See ERL-796
2018-12-03Merge branch 'maint'Dan Gudmundsson
* maint: unicode_util did not handle binary input data correctly
2018-12-03Merge branch 'dgud/stdlib/unicode-binary-bug/ERL-777/OTP-15428' into maintDan Gudmundsson
* dgud/stdlib/unicode-binary-bug/ERL-777/OTP-15428: unicode_util did not handle binary input data correctly
2018-12-03Merge branch 'maint'Hans Bolinder
* maint: stdlib: Let calendar:system_time_to_rfc3339() keep fractions
2018-11-30sys:log timeout 0 eventsRaimo Niskanen
2018-11-30Filter gen_server State in crash sys:logRaimo Niskanen
2018-11-30Fix statement duplicationRaimo Niskanen
2018-11-30Document system_events betterRaimo Niskanen
2018-11-30Adjust sys:log(N, get) to documentationRaimo Niskanen
2018-11-30Unify system_events in gen_*Raimo Niskanen
2018-11-30Log code changeRaimo Niskanen
2018-11-30Use from/1 type checkRaimo Niskanen
2018-11-29stdlib: Let calendar:system_time_to_rfc3339() keep fractionsHans Bolinder
RFC3339 mentions in paragraph 5.1 that if certain conditions are fulfilled, then sorting date and time strings results in a time-ordered sequence. One of the conditions is that the strings must have the same number of fractional second digits. This commits makes sure this is indeed the case.
2018-11-29Merge branch 'lukas/ssl/dist_benchmarks'Lukas Larsson
* lukas/ssl/dist_benchmarks: stdlib: Adjust binary bench to be faster ssl: Add scheduler utilization benchmark of plain/tls dist ssl: Link to tstsrvr to group_leader in test ssl: Add some benchmarks to test
2018-11-29stdlib: Adjust binary bench to be fasterLukas Larsson
When benchmarking releases before OTP-22 the binary:match function is very slow so it takes a long time to run the benchmarks. This commit makes the benchmark run for a shorter time which will make the results a bit less stable, but it will cut 1 hour from the benchmark regression so we will have to live with that.
2018-11-22Merge branch 'maint'Björn Gustavsson
* maint: Fix inadvertently suppressed warning for unused variable
2018-11-21Fix inadvertently suppressed warning for unused variableBjörn Gustavsson
An external fun could inadvertently suppress warnings for unused variables, such as in this example: bug() -> BugVar = foo(), if true -> fun m:f/1 end. There would be no warning that `BugVar` was unused. The bug was introduced in ff432e262e652, which was the commit that extended external funs to allow variables. https://bugs.erlang.org/browse/ERL-762
2018-11-20Merge branch 'sverker/ets-ordered-set-fixups'Sverker Eriksson
2018-11-20stdlib: Fix bug in ets_SUITE:smp_ordered_iterationSverker Eriksson
Did fail on really slow unlucky machines.
2018-11-20unicode_util did not handle binary input data correctlyDan Gudmundsson
gc_zwj sent binaries recursivly to gc_extend/3 which didn't handle can't handle them. ERL-777
2018-11-16erts: Fix offheap leak of ets catree tmp iteration keySverker Eriksson
Also fix erts_debug:get_internal_status(node_and_dist_references) for catree to also search route node keys for offheap stuff.
2018-11-16Limit more error_logger termsRaimo Niskanen
2018-11-16Add client stacktraceRaimo Niskanen
2018-11-16Print sys:log in error reportRaimo Niskanen
2018-11-16Optimize sys:handle_debug/4Raimo Niskanen
2018-11-16Optimize sys:logRaimo Niskanen
2018-11-16Fix sys:log functionalityRaimo Niskanen
Abstract out Latest-N-Log functions to this to nlog_*. Fix sys:log(Name, get) to strip the internal formatting funs.
2018-11-16Merge branch 'john/erts/plusplus-trapping/OTP-15427'John Högberg
* john/erts/plusplus-trapping/OTP-15427: Don't use too many reductions in lists:reverse/2 Make '++'/2 trapping
2018-11-14Merge branch 'maint'Lukas Larsson
* maint: Updated OTP version Prepare release Optimize operator '--' and yield on large inputs
2018-11-14Merge branch 'maint-18' into maintLukas Larsson
* maint-18: Updated OTP version Prepare release Optimize operator '--' and yield on large inputs Conflicts: OTP_VERSION erts/doc/src/notes.xml erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_lists.c erts/vsn.mk lib/stdlib/doc/src/notes.xml lib/stdlib/vsn.mk make/otp_version_tickets otp_versions.table
2018-11-09Prepare releaseErlang/OTP
2018-11-09Merge branch 'john/erts/OTP-18.3.4/minusminus_trapping/OTP-15371' into maint-18Erlang/OTP
* john/erts/OTP-18.3.4/minusminus_trapping/OTP-15371: Optimize operator '--' and yield on large inputs
2018-11-09Merge branch 'maint'Lukas Larsson
* maint: Updated OTP version Prepare release Optimize operator '--' and yield on large inputs
2018-11-09Merge branch 'maint-20' into maintLukas Larsson
* maint-20: Updated OTP version Prepare release Optimize operator '--' and yield on large inputs Conflicts: OTP_VERSION erts/doc/src/notes.xml erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_lists.c erts/vsn.mk lib/ssl/doc/src/notes.xml lib/ssl/vsn.mk lib/stdlib/doc/src/notes.xml lib/stdlib/vsn.mk make/otp_version_tickets otp_versions.table
2018-11-09Make '++'/2 trappingJohn Högberg
2018-11-07Remerge branch 'sverker/erts/ordered_set-select-improvements/OTP-15325'Sverker Eriksson
* sverker/erts/ordered_set-select-improvements/OTP-15325: erts: Tidy some ordered_set iteration code erts: Fix bug for catree iteration
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