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2018-06-18erts: Update etp-commands with correct aux_flagsLukas Larsson
2018-06-05erts: Fix emulator log messages to use erlang:system_timeLukas Larsson
This was changed in the logger in 8aa64c90ddd20ec0ca8cc5fe92a6124324c51da5.
2018-05-16Update etpRickard Green
2018-03-29erts: Break etp-processes/ports when all foundLukas Larsson
2018-03-21Implementation of true asynchronous signaling between processesRickard Green
Communication between Erlang processes has conceptually always been performed through asynchronous signaling. The runtime system implementation has however previously preformed most operation synchronously. In a system with only one true thread of execution, this is not problematic (often the opposite). In a system with multiple threads of execution (as current runtime system implementation with SMP support) it becomes problematic. This since it often involves locking of structures when updating them which in turn cause resource contention. Utilizing true asynchronous communication often avoids these resource contention issues. The case that triggered this change was contention on the link lock due to frequent updates of the monitor trees during communication with a frequently used server. The signal order delivery guarantees of the language makes it hard to change the implementation of only some signals to use true asynchronous signaling. Therefore the implementations of (almost) all signals have been changed. Currently the following signals have been implemented as true asynchronous signals: - Message signals - Exit signals - Monitor signals - Demonitor signals - Monitor triggered signals (DOWN, CHANGE, etc) - Link signals - Unlink signals - Group leader signals All of the above already defined as asynchronous signals in the language. The implementation of messages signals was quite asynchronous to begin with, but had quite strict delivery constraints due to the ordering guarantees of signals between a pair of processes. The previously used message queue partitioned into two halves has been replaced by a more general signal queue partitioned into three parts that service all kinds of signals. More details regarding the signal queue can be found in comments in the erl_proc_sig_queue.h file. The monitor and link implementations have also been completely replaced in order to fit the new asynchronous signaling implementation as good as possible. More details regarding the new monitor and link implementations can be found in the erl_monitor_link.h file.
2018-03-05Replace usage of ERTS_PSFLG_BOUNDRickard Green
2018-03-05Remove ERTS_PSFLG_ON_HEAP_MSGQRickard Green
2017-10-02erts: Move all I/O polling to a seperate threadLukas Larsson
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.
2017-05-19Make statistics/1 aware of dirty run-queues and tasksRickard Green
2017-05-04Update copyright yearRaimo Niskanen
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.
2017-02-14Fixed 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.
2017-01-13Improve etp-commandsRickard Green
2017-01-13Switch between scheduler types when multi-scheduling is blockedRickard Green
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
2016-10-18Merge branch 'maint'Lukas Larsson
2016-10-18erts: Add etp-disasm gdb macroLukas Larsson
2016-10-12erts: Improve printouts for some etp commandsLukas Larsson
Specifically etp-stacktrace/stackdump/process-info have been changed
2016-10-12erts: Refactor out func_info into structLukas Larsson
This commit adds two new structs to be used to represent erlang code in erts. ErtsCodeInfo is used to describe the i_func_info header that is part of all Export entries and the prelude of each function. This replaces all the BeamInstr * that were previously used to point to these locations. After this change the code should never use BeamInstr * with offsets to figure out different parts of the func_info header. ErtsCodeMFA is a struct that is used to descripe a MFA in code. It is used within ErtsCodeInfo and also in Process->current. All function that previously took Eterm * or BeamInstr * to identify a MFA now use the ErtsCodeMFA or ErtsCodeInfo where appropriate. The code has been tested to work when adding a new field to the ErtsCodeInfo struct, but some updates are needed in ops.tab to make it work.
2016-06-22erts: Fix etp-carrier-blocks for non smpSverker Eriksson
2016-06-14erts: Make etp-*-info take any value as inputLukas Larsson
2016-06-14erts: Add etp commands to re-compile erlangLukas Larsson
2016-05-31Update process state flags in etp-commandsRickard Green
2016-04-13Merge branch 'henrik/update-copyrightyear'Henrik Nord
* henrik/update-copyrightyear: update copyright-year
2016-03-24erts: Fix etp pid print on big endianLukas Larsson
2016-03-15update copyright-yearHenrik Nord
2015-06-24erts: Remove halfword etp-commandsBjörn-Egil Dahlberg
2015-06-18Change license text to APLv2Bruce Yinhe
2015-05-18erts: Fix typo in etp-carrier-blocksSverker Eriksson
2015-04-14erts: Add map support to gdb etp commandSverker Eriksson
2015-04-10erts: Add etp_the_non_valueSverker Eriksson
for a correct (non)value regardless of build type.
2014-12-18Merge branch 'maint'Bruce Yinhe
2014-12-02Replaced "Endianess" with "Endianness" everywhereDavid Haguenauer
2014-10-29Merge branch 'maint'Sverker Eriksson
2014-10-29Merge branch 'sverk/etp-check-beam-ranges' into maintSverker Eriksson
* sverk/etp-check-beam-ranges: erts: Add gdb command etp-check-beam-ranges
2014-10-29erts: Add gdb command etp-check-beam-rangesSverker Eriksson
2014-10-02Merge branch 'maint'Sverker Eriksson
2014-09-17Merge branch 'sverk/bin-alloc-refactor'Sverker Eriksson
* sverk/bin-alloc-refactor: erts: Fix gdb command etp-carrier-blocks for 32-bit erts: Refactor binary allocation interface to also initialize Binary
2014-09-17erts: Add gdb command etp-address-to-beam-opcodeSverker Eriksson
2014-09-05erts: Fix gdb command etp-carrier-blocks for 32-bitSverker Eriksson
2014-06-12Merge branch 'maint'Sverker Eriksson
2014-06-12Merge branch 'sverk/etp-alloc-stats' into maintSverker Eriksson
* sverk/etp-alloc-stats: erts: Fix documentation for no of default allocator instances erts: Add etp-alloc-stats and etp-alloc-instances
2014-06-12erts: Add etp-alloc-stats and etp-alloc-instancesSverker Eriksson
2014-06-03erts: Fixup for gdb command etp-cp-1Sverker Eriksson
fdb350a4 increased MI_FUNCTIONS to 13
2014-05-28erts: Fix bug in gdb function etp-cp-1Sverker Eriksson