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2018-03-26Add +sbwt/+swt analogues for dirty schedulersJohn Högberg
Sharing these settings for all schedulers can degrade performance, so it makes sense to be able to configure them separately. This also changes the default busy-wait time to "short" for both kinds of dirty schedulers.
2018-03-23Merge branch 'john/erts/async-thread-defaults/OTP-14928'John Högberg
* john/erts/async-thread-defaults/OTP-14928: Change default async thread count to 1
2018-03-23Add enif_make_map_from_arraysJohn Högberg
2018-03-22Merge branch 'sverker/enif-name-funcs/OTP-14994'Sverker Eriksson
2018-03-22erts: Remove const from ErlNifResourceDown docSverker Eriksson
to conform with erl_nif.h
2018-03-22erts: Add statement about errno to enif_*printf docsSverker Eriksson
2018-03-22erts: Add enif_vfprintf and enif_vsnprintfSverker Eriksson
2018-03-22erts: Add enif_*_name functionsSverker Eriksson
2018-03-21Change default async thread count to 1John Högberg
All uses of async threads in the built-in drivers have been replaced with dirty IO, so it no longer makes sense to leave the default at 10.
2018-03-16mikpe/process_info-1-no-messages/PR-1745/OTP-14986Lukas Larsson
make erlang:process_info/1 not retrieve messages
2018-03-16Merge pull request #1746 from legoscia/erl_nif.xml-spellingLukas Larsson
Fix typos in erl_nif.xml
2018-03-15Tracing MatchSpec docs updateVladimir Gordeev
I was running this code in shell and expected it to take default `self()` meta tracer, and start tracing `erlang:put/2`. ``` F = fun F() -> timer:sleep(5000), erlang:get(unique_field), erlang:put(unique_field, 123), F() end. erlang:trace_pattern({erlang, put, 2}, [{['$1', '_'], [{'==', '$1', unique_field}], []}], [global]). erlang:trace_pattern({erlang, get, 1}, [{['_'], [], [{trace, [], [call, timestamp]}]}], [meta]). Pid = spawn(F). ``` But tracing didn't start: ``` 6> flush(). Shell got {trace_ts,<0.70.0>,call, {erlang,get,[unique_field]}, {1521,118606,753838}} Shell got {trace_ts,<0.70.0>,call, {erlang,get,[unique_field]}, {1521,118611,754798}} Shell got {trace_ts,<0.70.0>,call, {erlang,get,[unique_field]}, {1521,118616,755705}} ok 7> erlang:trace_info(Pid, flags). {flags,[]} ``` Turns out that I had false expectations, that `{trace, _, _}` would enable tracing on that process, inheriting meta tracer process as consumer of trace messages. Instead it tried to take tracer from executing process (which is pointed out in docs). But there was none, so no tracing was started and flags were simply ignored (which is not that obvious from docs). Updated docs to point out that there are cases when flags would be simply ignored, and no tracing would start.
2018-03-14Merge branch 'maint'Henrik
Conflicts: OTP_VERSION
2018-03-13Merge PR-1699 from sverker/hipe-amd64-high-code/OTP-14951Sverker Eriksson
Remove low memory need for HiPE on x86_64
2018-03-13Merge branch 'sverker/enif_fprintf-doc'Sverker Eriksson
2018-03-13Merge branch 'sverker/dist-flags-consolidate'Sverker Eriksson
2018-03-13Fix typos in erl_nif.xmlMagnus Henoch
2018-03-10update erlang:process_info/1 docsMikael Pettersson
2018-03-09Update release notesErlang/OTP
2018-03-07erts: Add enif_fprintf docsSverker Eriksson
2018-03-05erts: Remove hipe amd64 code super carrier (exec_mmap)Sverker Eriksson
2018-03-02erts: Improve send/2 docsSverker Eriksson
with link to ! operator and clarify ugly badarg for unregistered atom argument.
2018-03-02erts,kernel: Add dist_util:strict_order_flags/0Sverker Eriksson
to replace DFLAGS_STRICT_ORDER_DELIVERY and remove that compile time dependency.
2018-03-02erts: Cleanup erlang:system_info docsLukas Larsson
Attempt to make the system_info docs easier to navigate by grouping items of similar themes together in the documentation.
2018-02-26Merge branch 'maint'Sverker Eriksson
2018-02-26Suggest using enif_make_new_binary when possibleJohn Högberg
While enif_make_binary will create heap-binaries from ErlNifBinaries when possible now, enif_alloc_binary still allocates a Binary* off-heap which is avoided entirely with enif_make_new_binary.
2018-02-23erts: Clarify enif_self docsSverker Eriksson
2018-02-13Merge branch 'maint'Sverker Eriksson
* maint: Updated OTP version Update release notes Update version numbers kernel: Add os:cmd/2 with max_size option # Conflicts: # OTP_VERSION # lib/kernel/doc/src/os.xml # lib/kernel/src/os.erl
2018-02-13Merge branch 'maint-20' into maintSverker Eriksson
* maint-20: Updated OTP version Update release notes Update version numbers erts: Add system_flags(erts_alloc,"+M?sbct *") erts: Add age order first fit allocator strategies erts: Refactor erl_ao_firstfit_alloc erts: Add migration options "acnl" and "acfml" kernel: Add os:cmd/2 with max_size option erts: Add more stats for mbcs_pool erts: Fix alloc_SUITE:migration stdlib: Make ets_SUITE memory check try again erts: Improve carrier pool search erts: Improve alloc_SUITE:migration erts: Refactor carrier dealloc migration
2018-02-12Update release notesErlang/OTP
2018-02-12Merge 'sverker/maint-20/alloc-n-migration/ERIERL-88'Sverker Eriksson
into 'sverker/master/alloc-n-migration/ERIERL-88'
2018-02-12Merge 'sverker/maint-19/alloc-n-migration/ERIERL-88'Sverker Eriksson
into 'sverker/maint-20/alloc-n-migration/ERIERL-88' OTP-14915 OTP-14916 OTP-14917 OTP-14918
2018-02-12erts: Add system_flags(erts_alloc,"+M?sbct *")Sverker Eriksson
to change sbct limit in runtime for chosen allocator type. With great power comes great responsibility.
2018-02-12erts: Add age order first fit allocator strategiesSverker Eriksson
ageffcaoff: Age First Fit Carrier, Address Order First Fit (within carrier) ageffcbf : Age First Fit Carrier, Best Fit (within carrier) ageffcaobf: Age First Fit Carrier, Address Order Best Fit (within carrier) Prefer old carriers, the older the better.
2018-02-08erts: Add migration options "acnl" and "acfml"Sverker Eriksson
acnl: Abandon Carrier Nr Limit acfml: Abandon Carrier Free block Min Limit
2018-02-07Merge branch 'hasse/no_get_stacktrace/OTP-14861'Hans Bolinder
* hasse/no_get_stacktrace/OTP-14861: erts: Update abstract format doc with stacktrace variable wx: Do not call erlang:get_stacktrace() tools: Do not call erlang:get_stacktrace() stdlib: Do not call erlang:get_stacktrace() sasl: Do not call erlang:get_stacktrace() runtime_tools: Do not call erlang:get_stacktrace() reltool: Do not call erlang:get_stacktrace() parsetools: Do not call erlang:get_stacktrace() observer: Do not call erlang:get_stacktrace() mnesia: Do not call erlang:get_stacktrace() (cont) mnesia: Do not call erlang:get_stacktrace() kernel: Do not call erlang:get_stacktrace() inets: Do not call erlang:get_stacktrace() eunit: Do not call erlang:get_stacktrace() et: Do not call erlang:get_stacktrace() dialyzer: Do not call erlang:get_stacktrace() debugger: Do not call erlang:get_stacktrace() debugger: Do not try to restore stacktrace common_test: Do not call erlang:get_stacktrace()
2018-02-06erts: Update abstract format doc with stacktrace variableHans Bolinder
2018-02-02Reword docs related to the runtime system modeXavier Noria
The existing wording may be interpreted as saying that embedded mode eager loads all modules. This revision makes clear embedded mode only disables module auto loading. Since I was on it, I have reordered a couple of places to describe interactive first, and then embedded. It feels natural to cover first the default and positive mode (auto loads), and then its negation.
2018-01-17Merge branch 'maint'Lukas Larsson
2018-01-17Fix a broken erlang:trace/3 link in docKonstantinos Kallas
2018-01-09stdlib: Improve erl_eval's stacktracesHans Bolinder
The call "erlang:get_stacktrace()" is not handled explicitly. If there are issues, they can probably be ignored since erlang:get_stacktrace/1 will be deprecated and removed.
2018-01-08Merge branch 'john/erts/putenv-thread-safety/OTP-14666'John Högberg
2018-01-03Document that os:putenv/2 and putenv(3) modify different environmentsJohn Högberg
This is *ONLY* relevant for drivers/NIFs, so it's probably counter- productive to document it elsewhere.
2017-12-14Merge pull request #1653 from tonyrog/makedep_side_effectBjörn Gustavsson
Add -MMD option to erlc OTP-14830
2017-12-13Merge branch 'maint'Henrik Nord
2017-12-08Update release notesErlang/OTP
2017-12-08Merge pull request #1634 from bjorng/bjorn/get_stacktrace-syntax/OTP-14692Björn Gustavsson
Add syntax in try/catch to retrieve the stacktrace directly
2017-12-06Add -MMD option to erlcTony Rogvall
The compile option makedep_side_effect, erlc -MMD, instructs the compiler to emit dependencies and continue to compile as normal.
2017-11-30Add enif_ioq_peek_headJohn Högberg
This introduces a way to retrieve erlang terms from NIF IO queues without having to resort to copying. OTP-14797
2017-11-30Merge branch 'maint'Sverker Eriksson