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2017-09-11erts: Remove possibility to disable dirty schedulersLukas Larsson
2017-09-11Merge branch 'lukas/erts/pgo/OTP-14604'Lukas Larsson
* lukas/erts/pgo/OTP-14604: Add support for building a pgo beam_emu
2017-09-08Add support for building a pgo beam_emuLukas Larsson
2017-09-06Merge branch 'maint' into john/erts/merge-zlib-and-vector-qJohn Högberg
2017-09-06Merge branch 'maint' into john/erts/merge-zlib-and-vector-qJohn Högberg
2017-09-05Replace the zlib driver with a NIFJohn Högberg
All operations will now yield appropriately, allowing them to be used freely in concurrent applications. This commit also deprecates the functions listed below, although they won't raise deprecation warnings until OTP 21: zlib:adler32 zlib:crc32 zlib:inflateChunk zlib:getBufSize zlib:setBufSize The behavior of throwing an error when a dictionary is required for decompression has also been deprecated.
2017-09-05erts: Add nif ioqLukas Larsson
2017-08-31Introduce '%warm' and beam_warm.hBjörn Gustavsson
The bit syntax instructions are mixed among other instructions in beam_hot.h and beam_cold.h. Introduce a new hotness level called '%warm' with is associated file beam_warm.h. Mark all bit syntax instructions as '%warm'.
2017-08-23Eliminate the beam_instrs.h fileBjörn Gustavsson
The beam_instrs.h file serves no useful purpose. Put the instructions in beam_hot.h instead.
2017-08-11Break out most instructions from beam_emu.cBjörn Gustavsson
2017-08-08Simplify specifying implementation of instructionsBjörn Gustavsson
Eliminate the need to write pre-processor macros for each instruction. Instead allow the implementation of instruction to be written in C directly in the .tab files. Rewrite all existing macros in this way and remove the %macro directive.
2017-07-17erts: Cleanup alloc.types after non-smp removalLukas Larsson
2017-07-17erts: Cleanup configure and makefiles after non-smp removalLukas Larsson
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
2017-07-06Move lock flags to a common headerJohn Högberg
2017-05-29hipe: Fix hipe_mkliterals make recipeLukas Larsson
If a link dependency is added in LDFLAGS it should be resolved in LIBS, so we have to use LIBS and not TYPE_LIBS.
2017-05-18Make lock counter info independent of the locks being countedJohn Högberg
This allows us to enable/disable lock counting at will, and greatly improves the performance of erts_debug:lock_counters/1 since we no longer have to worry about the lock counters "dying" while we're enumerating them. OTP-14412
2017-05-04Update copyright yearRaimo Niskanen
2017-04-21erts: Deprecate the non-smp emulatorsLukas Larsson
2017-03-20erts: Make generated files depend on MakefileSverker Eriksson
in order to regenerate them if config has changed. ERL-379 Maybe a better solution would have been to run 'clean' target or stop and ask user to run make clean.
2017-01-12Optimize handling of BIF errorsRickard Green
2017-01-12Support for dirty BIFsRickard Green
2016-11-11Merge branch 'maint'Sverker Eriksson
2016-11-11erts: Fix correct link flags for hipe_mkliteralsSverker Eriksson
and no need for $(INCLUDED).
2016-10-14Add a loader state for HiPE code loadingMagnus Lång
Just like the BEAM loader state (as returned by erlang:prepare_loading/2), the HiPE loader state is contained in a magic binary. Eventually, we will separate HiPE loading into a prepare and a finalise phase, like the BEAM loader, where the prepare phase will be implemented by hipe_unified_loader and the finalise phase be implemented in C by hipe_load.c and beam_load.c, making prepare side-effect free and finalise atomic. The finalise phase will be exposed through the erlang:finish_loading/1 API, just like the BEAM loader, as this will allow HiPE and BEAM modules to be mixed in the same atomic "commit". The usage of a loader state makes it easier to keep track of all resources allocated during loading, and will not only make it easy to prevent leaks when hipe_unified_loader crashes, but also paves the way for proper, leak-free, unloading of HiPE modules.
2016-08-31Remove old purge strategyRickard Green
2016-08-29Merge branch 'maint'Rickard Green
* maint: Fix tracing of processes executing dirty Perform check_process_code while process is executing dirty Fix purge of code Reclaim literal area after purge has completed Separate literal area from code Conflicts: erts/emulator/beam/global.h
2016-08-29Merge branch 'rickard/ds-purge-module/OTP-13808' into maintRickard Green
* rickard/ds-purge-module/OTP-13808: Perform check_process_code while process is executing dirty Conflicts: erts/doc/src/erl_nif.xml
2016-08-29Merge branch 'rickard/fun-purge-bug/OTP-13809' and ↵Rickard Green
'rickard/new-purge-strategy/OTP-13833' into maint * rickard/fun-purge-bug/OTP-13809: Fix purge of code Reclaim literal area after purge has completed Separate literal area from code Conflicts: erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/erl_init.c erts/preloaded/ebin/init.beam
2016-08-29Perform check_process_code while process is executing dirtyRickard Green
2016-08-26Reclaim literal area after purge has completedRickard Green
2016-07-14Merge branch 'maint'Lukas Larsson
Conflicts: erts/emulator/Makefile.in
2016-07-14hipe: Remove performance profiling codeLukas Larsson
This type of statistics is now available through the microstate accounting API.
2016-06-22Simplify creation of new GC BIFsBjörn Gustavsson
Add the BIF type "gcbif" in bif.tab for defining GC BIFs. That will eliminate some of the hand-written administrative code for handling GC BIFs, saving the developer's time.
2016-06-22make_tables: Remove broken automatic BIF aliasingBjörn Gustavsson
The make_tables script still contains a broken implementation of a mechanism to automatically give a BIF an additional (for example, was used for erlang:'++'/2 and erlang:append/2). When that featured broke, it was worked around by adding additional entries to bif.tab. There is therefore no reason to mend the feature.
2016-05-10Remove conditional dirty schedulers APIRickard Green
2016-04-15erts: Implement tracer modulesLukas Larsson
Add the possibility to use modules as trace data receivers. The functions in the module have to be nifs as otherwise complex trace probes will be very hard to handle (complex means trace probes for ports for example). This commit changes the way that the ptab->tracer field works from always being an immediate, to now be NIL if no tracer is present or else be the tuple {TracerModule, TracerState} where TracerModule is an atom that is later used to lookup the appropriate tracer callbacks to call and TracerState is just passed to the tracer callback. The default process and port tracers have been rewritten to use the new API. This commit also changes the order which trace messages are delivered to the potential tracer process. Any enif_send done in a tracer module may be delayed indefinitely because of lock order issues. If a message is delayed any other trace message send from that process is also delayed so that order is preserved for each traced entity. This means that for some trace events (i.e. send/receive) the events may come in an unintuitive order (receive before send) to the trace receiver. Timestamps are taken when the trace message is generated so trace messages from differented processes may arrive with the timestamp out of order. Both the erlang:trace and seq_trace:set_system_tracer accept the new tracer module tracers and also the backwards compatible arguments. OTP-10267
2016-04-13Merge branch 'henrik/update-copyrightyear'Henrik Nord
* henrik/update-copyrightyear: update copyright-year
2016-04-06erts: Teach lttng to configure and build systemBjörn-Egil Dahlberg
Introduce a wrapper API for lttng.
2016-03-15update copyright-yearHenrik Nord
2016-02-02erts: Add microstate accountingLukas Larsson
Microstate accounting is a way to track which state the different threads within ERTS are in. The main usage area is to pin point performance bottlenecks by checking which states the threads are in and then from there figuring out why and where to optimize. Since checking whether microstate accounting is on or off is relatively expensive if done in a short loop only a few of the states are enabled by default and more states can be enabled through configure. I've done some benchmarking and the overhead with it turned off is not noticible and with it on it is a fraction of a percent. If you enable the extra states, depending on the benchmark, the ovehead when turned off is about 1% and when turned on somewhere inbetween 5-15%. OTP-12345
2016-01-13erts: Introduce erts_code_purgerSverker Eriksson
as a system process with preloaded code.
2015-12-15erts: Move os_pid to port hash to child setupLukas Larsson
Had to move the hashing because of a race that can otherwise happen where a new os_pid value was inserted into the hash before the previous value had been removed. Also replaced the protocol inbetween erts and child setup to be a binary protocol. This was done in order to deal with the varying size of Eterm.
2015-12-15erts: Create forker process for spawn driverLukas Larsson
Instead of forking from the beam process, we create a separate process in which all forks are done. This has several advantages: 1) performance: * don't have to close all fd's in the world * fork only has to copy stuff from a small process * work is done in a completely seperate process * a 3x performance increase has been measured, can be made even greater (10x) if we cache the environment in child setup 2) stability * the exec is done in another process than beam, which means that if the file that we exec to is on an nfs that is not available right now we will not block a scheduler until the nfs returns. 3) simplicity * don't have to deal with SIGCHLD in the erts Unfortunately, this solution also implies some badness. 1) There will always be a seperate process running together with beam on unix. This could be confusing and undesirable. 2) We have to transfer the entire environment to child_setup for each command. OTP-13088
2015-12-15erts: Move sys drivers to another fileLukas Larsson
2015-12-15erts: Change name of child_setup to erl_child_setupLukas Larsson
2015-07-10ose: Remove all code related to the OSE portLukas Larsson
The OSE port is no longer supported and this commit removed it and any changes related to it. The things that were general improvements have been left in the code.
2015-06-18Change license text to APLv2Bruce Yinhe
2015-05-08Optimized timer implementationRickard Green
2015-03-24Merge branch 'rickard/time_api/OTP-11997'Rickard Green
* rickard/time_api/OTP-11997: Better OS system time implementation Documentation adjustments Fix zero timout timers erts_sys_hrtime() for lcnt Better support for poor os monotonic sources Conflicts: erts/preloaded/ebin/erlang.beam