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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
2017-07-02escript.c: remove dead codeMikael Pettersson
2017-06-14Update copyright yearHans Nilsson
2017-05-24Merge branch 'rickard/escript-space-path-fix/OTP-14433'Rickard Green
* rickard/escript-space-path-fix/OTP-14433: escript: Do not split path to Erlang system into multiple words
2017-05-24Merge pull request #1475 from rickard-green/rickard/escript-emulator-fixRickard Green
Fix erlang system lookup from escript bug introduced in PR #1293 OTP-14201
2017-05-24Merge branch 'dgud/erts/revert-default-process-name'Dan Gudmundsson
* dgud/erts/revert-default-process-name: Revert setting default argv0 name
2017-05-23escript: Do not split path to Erlang system into multiple wordsRickard Green
escript failed to start Erlang systems with spaces in the absolute path (when absolute path was used).
2017-05-23Fix erlang system lookup from escript bug introduced in PR #1293Rickard Green
Erlang system found in PATH was used even when explicitly pointing out the escript binary in another Erlang system.
2017-05-23Revert setting default argv0 nameDan Gudmundsson
Changing argv[0] from emu name to progname if ESCRIPT_NAME was not set caused to many failing scripts, revert that part of the change. See 86f6a9856
2017-05-23Merge branch 'lukas/erts/etp-processes-ports-optimization'Lukas Larsson
* lukas/erts/etp-processes-ports-optimization: erts: Optimize etp-processes and etp-ports
2017-05-22erts: Optimize etp-processes and etp-portsLukas Larsson
Not calculating the max, table and invalid addresses each loop speeds up iterating through the processes list by about 5x.
2017-05-19Merge branch 'rickard/ds-runqs'Rickard Green
OTP-14152 * rickard/ds-runqs: Make statistics/1 aware of dirty run-queues and tasks
2017-05-19Make statistics/1 aware of dirty run-queues and tasksRickard Green
2017-05-16Teach erlexec the -emu_type optionBjörn Gustavsson
Add the option -emu_type to start an emulator of a certain type. For exampe, "-emu_type lcnt" will start beam.lcnt.smp. Any string will be accepted after -emu_type. If there is no corresponding emulator, there will be an error similar to: erlexec: The emulator '.../bin/x86_64-unknown-linux-gnu/beam.foo.smp' does not exist. On Windows, there is an undocumented option "-debug". Remove that option, because -emu_type can be used instead.
2017-05-16Let --enable-lock-counter build an additional emulatorBjörn Gustavsson
"./configure --enable-lock-counter" would modify the behavior of the default emulator (usually SMP). To make lock counting more accessible, change --enable-lock-counter to build an additional emulator in the same way as: (cd erts/emulator && make lcnt) (The next commit will make it easier to start the built lock-counter emulator.)
2017-05-04Update copyright yearRaimo Niskanen
2017-04-28Merge branch 'dgud/erts/erlscript_name'Dan Gudmundsson
* dgud/erts/erlscript_name: Rename argv[0] from beam to invoking program name OTP-14381
2017-04-27Merge branch 'rickard/ds-stack-size'Rickard Green
OTP-14380 * rickard/ds-stack-size: Suggested stack size options for dirty schedulers
2017-04-25Merge branch 'lukas/erts/deprecate-non-smp/OTP-14272'Lukas Larsson
* lukas/erts/deprecate-non-smp/OTP-14272: erts: Fix testcases for smp +S 1:1 erts: Deprecate the non-smp emulators
2017-04-24Rename argv[0] from beam to invoking program nameDan Gudmundsson
Allows ps and htop to display the invoking program/script name instead of beam[.smp].
2017-04-21Merge branch 'rickard/timer-improvements'Rickard Green
OTP-14356 * rickard/timer-improvements: Fix of later timer wheel Minimum timeout position in each timer wheel Manage timers to trigger at once in a slot similar to other timers Introduce timer slot range counters Timer wheel divided into a "soon wheel" and a "later wheel" Remove unnecessary cancel callback from timer-wheel timers Rearrange timer struct fields in order to simplify Use timer wheel for short BIF timers Use magic refs for BIF timers Remove accessor BIF timer implementation Fix aux-work timer implementation
2017-04-21erts: Deprecate the non-smp emulatorsLukas Larsson
2017-04-21Merge branch 'bjorn/dialyzer/add-typer/OTP-14336' into run-travisBjörn Gustavsson
* bjorn/dialyzer/add-typer/OTP-14336: Add smoke test for TypER Add back TypEr to the main OTP repository
2017-04-20Add back TypEr to the main OTP repositoryBjörn Gustavsson
It turned out that the dependencies between Dialyzer and TypEr makes it impractical to have TypEr in a separate repository. Add it back to the OTP repository, but put the Erlang module 'typer' in the dialyzer application.
2017-04-20erts: Rebuild etc executables if config.h changesLukas Larsson
2017-04-18Minimum timeout position in each timer wheelRickard Green
Minimum known timeout position is saved in bot far and near wheel. This information is used to avoid scanning from current position in the cases were we know the minimum timeout position.
2017-04-11Suggested stack size options for dirty schedulersRickard Green
2017-03-28erts: Fix two compiler warnings on OS XLukas Larsson
2017-03-28Merge branch 'lukas/erts/hide-debug-consoles'Lukas Larsson
* lukas/erts/hide-debug-consoles: erts: Only show debug consoles if ERL_CONSOLE_MODE is defined
2017-03-08Remove typer applicationSiri Hansen
The application now has an own repo, https://github.com/erlang/typer
2017-03-06erts: Only show debug consoles if ERL_CONSOLE_MODE is definedLukas Larsson
2017-02-14Fixed typos in ertsAndrew Dryga
2017-02-06Implement magic referencesRickard Green
Magic references are *intentionally* indistinguishable from ordinary references for the Erlang software. Magic references do not change the language, and are intended as a pure runtime internal optimization. An ordinary reference is typically used as a key in some table. A magic reference has a direct pointer to a reference counted magic binary. This makes it possible to implement various things without having to do lookups in a table, but instead access the data directly. Besides very fast lookups this can also improve scalability by removing a potentially contended table. A couple of examples of planned future usage of magic references are ETS table identifiers, and BIF timer identifiers. Besides future optimizations using magic references it should also be possible to replace the exposed magic binary cludge with magic references. That is, magic binaries that are exposed as empty binaries to the Erlang software.
2017-02-06Merge branch 'hm/escript-emulator'Rickard Green
OTP-14201 * hm/escript-emulator: escript: Handle symbolic link to a standalone escript
2017-01-13Improve etp-commandsRickard Green
2017-01-13Switch between scheduler types when multi-scheduling is blockedRickard Green
2016-12-22escript: Handle symbolic link to a standalone escriptHåkan Mattsson
The code has been rearranged to make use of the actual path "get_default_emulator(scriptname)" to the escript instead of the given one "get_default_emulator(argv[0])". TL;DR Assume a source system with some Erlang applications (app1, app2 etc.) and an escript called "mytool". When generating a standalone target system (with reltool for example), the escript(s) are located in the same top bin directory as "erl". See mytool* below. In such a system the original "mytool" escript is given the extension ".escript" and the file with the same name as the original escript is a copy of the "escript" executable. One purpose of the escript executable is to determine which "erl" to use to start the system. In a standalone system we want it to find the runtime system bundled with the escript(s). This is done by analyzing the path in order to find the "erl" located in the same directory as the escript. A dilemma here is that we do not want to put the top bin directory in the execution path (PATH env var) as we then would cause other Erlang applications to make use of our bundled run-time system. One way of solving this is to choose some suitable bin directory in the execution path (such as /user/local/bin) and put a symbolic link there to our mytool executable. Unfortunately this did not work as the escript executable (in this case called mytool) would try to find "erl" in /usr/local/bin and when it did not find such a file it resorted to use the command "erl" which would find some (unwanted) "erl" in the execution path. My fix solves that problem. ├── bin/ │   ├── erl* (dyn_erl.c) │   ├── mytool* (escript.c) │   ├── mytool.escript* (original mytool escript) │   └── start_clean.boot ├── erts-vsn/ │   └── bin/ │   ├── beam* │   ├── beam.smp* │   ├── erl* │   ├── erl_child_setup* │   ├── erlexec* │   └── inet_gethost* └── lib/ ├── app1-vsn ├── app2-vsn └── ...
2016-12-19Merge branch 'maint'Björn-Egil Dahlberg
2016-12-19Merge branch 'legoscia/remove-watchdog-vestiges/PR-1255/OTP-14112' into maintBjörn-Egil Dahlberg
* legoscia/remove-watchdog-vestiges/PR-1255/OTP-14112: Remove vestiges of watchdog support in heart
2016-12-19Fix stactrace for apply on error/[1,2], exit/1, or throw/1Rickard Green
2016-12-07Merge branch 'maint'Dan Gudmundsson
* maint: Update copyright-year Conflicts: lib/dialyzer/src/dialyzer.hrl lib/dialyzer/src/dialyzer_options.erl lib/dialyzer/test/opaque_SUITE_data/src/recrec/dialyzer.hrl lib/dialyzer/test/opaque_SUITE_data/src/recrec/dialyzer_races.erl lib/hipe/icode/hipe_icode.erl lib/hipe/main/hipe.erl lib/hipe/main/hipe.hrl.src lib/hipe/main/hipe_main.erl
2016-12-07Update copyright-yearErlang/OTP
2016-11-23Merge branch 'maint'Rickard Green
* maint: Update etp-commands for dirty schedulers Fix scheduling of system tasks on processes executing dirty Fix call time tracing with dirty schedulers Fix send of exit signal to process executing dirty Fix dirty scheduler process priority Fix alloc-util hard-debug Silence debug warning when no beam jump table is used with dirty schedulers Fix check_process_code() when NifExport is in use Fix GC when NifExport is in use Fix saving of original arguments when rescheduling via NifExport Conflicts: erts/emulator/beam/beam_bif_load.c erts/emulator/beam/erl_nif.c
2016-11-23Merge branch 'rickard/dirty-scheduling-fixes' into maintRickard Green
OTP-14051 * rickard/dirty-scheduling-fixes: Update etp-commands for dirty schedulers Fix scheduling of system tasks on processes executing dirty Fix call time tracing with dirty schedulers Fix send of exit signal to process executing dirty Fix dirty scheduler process priority Fix alloc-util hard-debug Silence debug warning when no beam jump table is used with dirty schedulers Conflicts: erts/etc/unix/etp-commands.in
2016-11-22Update etp-commands for dirty schedulersRickard Green
2016-11-21Remove vestiges of watchdog support in heartMagnus Henoch
Hardware watchdog support was removed from heart in R13A, but there were still some vestiges in the code and the documentation. - Remove mentions of the HW_WD_DISABLE variable, as it's no longer used. - Remove the HEART_BEAT_BOOT_DELAY variable, as it was only used for the hardware watchdog.
2016-11-17erts: Fix all -Wundef errorsSverker Eriksson
2016-10-18Merge branch 'maint'Lukas Larsson
2016-10-18erts: Add etp-disasm gdb macroLukas Larsson
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