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2018-03-09Always use sys_memcpy/cmp/etc instead of plain memcpy/cmp/etcJohn Högberg
2018-02-26Merge branch 'maint'Lukas Larsson
Conflicts: erts/emulator/beam/erl_trace.c
2018-02-26erts: Delay cleanup of removed tracer on dirty schedsLukas Larsson
It is not simple to do the correct de-allocation on a dirty schedulers, so we just delay it until this process runs on a normal scheduler.
2017-09-15erts: Remove undocumented driver_eventSverker Eriksson
2017-07-17erts: Replace usage of all erts_smp prefixes to just ertsLukas Larsson
2017-07-17erts: Cleanup removal of non-smp emulatorsLukas Larsson
2017-07-17erts: Remove ERTS_SMP and USE_THREAD definesLukas Larsson
This refactor was done using the unifdef tool like this: for file in $(find erts/ -name *.[ch]); do unifdef -t -f defile -o $file $file; done where defile contained: #define ERTS_SMP 1 #define USE_THREADS 1 #define DDLL_SMP 1 #define ERTS_HAVE_SMP_EMU 1 #define SMP 1 #define ERL_BITS_REENTRANT 1 #define ERTS_USE_ASYNC_READY_Q 1 #define FDBLOCK 1 #undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT #define ERTS_POLL_ASYNC_INTERRUPT_SUPPORT 0 #define ERTS_POLL_USE_WAKEUP_PIPE 1 #define ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE 1 #undef ERTS_HAVE_PLAIN_EMU #undef ERTS_SIGNAL_STATE
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
2017-05-04Update copyright yearRaimo Niskanen
2017-04-28Merge PR1413 from g-andrade/feature/phash2_nifSverker Eriksson
Support hashing terms from NIF code
2017-04-22erts: Support custom salt in enif_hashGuilherme Andrade
2017-04-11erts: Introduce erts_bin_releaseSverker Eriksson
2017-04-11erts: Init refc=1 in erts_bin_nrml_allocSverker Eriksson
Only term_to_binary needed some extra attention as it used to initialize refc as 0 instead of 1.
2017-01-17Merge branch 'maint'Sverker Eriksson
2017-01-05erts: Fix GC tracing to use temp heapSverker Eriksson
Can't use HAlloc as it might consume part of callers 'need'.
2016-10-12erts: Refactor find_function_from_pc to return MFALukas Larsson
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.
2016-09-05Merge branch 'lukas/erts/tracing/fix_sparc_align_issue/OTP-13803' into maintLukas Larsson
* lukas/erts/tracing/fix_sparc_align_issue/OTP-13803: erts: Immed tracer states also have to be alignable
2016-08-29Merge branch 'rickard/ds-trace/OTP-13822' into maintRickard Green
* rickard/ds-trace/OTP-13822: Fix tracing of processes executing dirty
2016-08-29Fix tracing of processes executing dirtyRickard Green
2016-08-24erts: Immed tracer states also have to be alignableLukas Larsson
2016-08-12erts: Align ErtsThrPrgrLaterOp when free'ing tracerLukas Larsson
On Sparc all structs with a double word element in are assumed to be allocated on a two word boundary. So we have to make sure that the ErtsThrPrgrLaterOp * points to 8 / 16 byte aligned memory. As it only costs one word I've done it on all architectures in case some unknown other arch also needs this.
2016-07-13erts: Make sure to de-allocate the old seq tracerLukas Larsson
2016-06-13erts: Fix profile runnable processes raceBjörn-Egil Dahlberg
2016-05-24erts: Move tracer SecondTraceTerm to Opts mapLukas Larsson
The extra trace data has been moved to the opts map in order for the tracer to be able to distinguish inbetween extra trace data 'undefined' and no extra trace data. In the same commit all opts associations have been changed so that if the tracer should not use them, the key is left unassicated instead of being sent to undefined. This should be give a small performance gain and also makes the API easier to work with.
2016-05-11Merge branch 'lukas/trace-fix'Rickard Green
* lukas/trace-fix: erts: Only allow remove from trace_status callback
2016-05-11erts: Only allow remove from trace_status callbackLukas Larsson
Make it so that it is only possible to remove a tracer via returning remove from an erl_tracer. This limition is put in place in order to avoid a lot of lock checking and taking in various places, especially in regards to trace events happening on dirty schedulers.
2016-05-10erts: Implement max_heap_size process flagLukas Larsson
The max_heap_size process flag can be used to limit the growth of a process heap by killing it before it becomes too large to handle. It is possible to set the maximum using the `erl +hmax` option, `system_flag(max_heap_size, ...)`, `spawn_opt(Fun, [{max_heap_size, ...}])` and `process_flag(max_heap_size, ...)`. It is possible to configure the behaviour of the process when the maximum heap size is reached. The process may be sent an untrappable exit signal with reason kill and/or send an error_logger message with details on the process state. A new trace event called gc_max_heap_size is also triggered for the garbage_collection trace flag when the heap grows larger than the configured size. If kill and error_logger are disabled, it is still possible to see that the maximum has been reached by doing garbage collection tracing on the process. The heap size is defined as the sum of the heap memory that the process is currently using. This includes all generational heaps, the stack, any messages that are considered to be part of the heap and any extra memory the garbage collector may need during collection. In the current implementation this means that when a process is set using on_heap message queue data mode, the messages that are in the internal message queue are counted towards this value. For off_heap, only matched messages count towards the size of the heap. For mixed, it depends on race conditions within the VM whether a message is part of the heap or not. Below is an example run of the new behaviour: Eshell V8.0 (abort with ^G) 1> f(P),P = spawn_opt(fun() -> receive ok -> ok end end, [{max_heap_size, 512}]). <0.60.0> 2> erlang:trace(P, true, [garbage_collection, procs]). 1 3> [P ! lists:duplicate(M,M) || M <- lists:seq(1,15)],ok. ok 4> =ERROR REPORT==== 26-Apr-2016::16:25:10 === Process: <0.60.0> Context: maximum heap size reached Max heap size: 512 Total heap size: 723 Kill: true Error Logger: true GC Info: [{old_heap_block_size,0}, {heap_block_size,609}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}] flush(). Shell got {trace,<0.60.0>,gc_start, [{old_heap_block_size,0}, {heap_block_size,233}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}]} Shell got {trace,<0.60.0>,gc_max_heap_size, [{old_heap_block_size,0}, {heap_block_size,609}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}]} Shell got {trace,<0.60.0>,exit,killed}
2016-05-09Merge branch 'sverker/trace-send-receive-matchspec/OTP-13507'Sverker Eriksson
2016-05-04erts: Fix PAM to be callable from non-scheduler threadSverker Eriksson
also simplified the interface to to run PAM from trace
2016-05-04erts: Change receive matchspec to [NodeOrOther, Pid, Msg]Sverker Eriksson
2016-05-04erts: Add Sender in 'receive' trace matchspecSverker Eriksson
All 'EXIT' and monitor messages are sent from 'system' Timeouts are "sent" from 'clock_service'
2016-05-04erts: Add matchspec to 'receive' traceSverker Eriksson
2016-05-04erts: Add match spec for send traceSverker Eriksson
2016-05-04Merge branch 'rickard/reds-fix/master/OTP-13512'Rickard Green
* rickard/reds-fix/master/OTP-13512: Ensure correct reduction counting
2016-05-04Ensure correct reduction countingRickard Green
2016-05-03Merge branch 'lukas/erts/tracing/misc_fixes/OTP-13503'Lukas Larsson
* lukas/erts/tracing/misc_fixes/OTP-13503: erts: Add test for new procs trace with spawn_link kernel: Remove seq_trace event order dep in tc erts: Add tests for set on link tracing erts: Expand trace tests for refc binaries erts: Remove erl_tracer with invalid state erts: Remove some dead code erts: Fix broken doc link to erl_tracer Conflicts: erts/emulator/beam/erl_trace.c
2016-04-29erts: Fix return_to trace callbackBjörn-Egil Dahlberg
2016-04-29erts: Extend 'enabled' and 'trace' tracer callbacksBjörn-Egil Dahlberg
Adds the following capabilities to a tracer backend * enabled_running_procs/3 changed from enabled_running/3 * enabled_running_ports/3 * trace_running_procs/6 changed from trace_running/6 * trace_running_ports/6
2016-04-29erts: Extend 'enabled' tracer callbacksBjörn-Egil Dahlberg
Adds the following capabilities to a tracer backend * enabled_procs/3 * enabled_ports/3 * enabled_running/3 * enabled_call/3 * enabled_send/3 * enabled_receive/3 * enabled_garbage_collection/3 These functions will fall back to enabled/3 if not provided and the tracepoint is active.
2016-04-29erts: Extend garbage collection traceBjörn-Egil Dahlberg
Replace 'gc_start' and 'gc_end' with * 'gc_minor_start' * 'gc_minor_end' * 'gc_major_start' * 'gc_major_end'
2016-04-29runtime_tools: Add lttng 'call' tracingBjörn-Egil Dahlberg
2016-04-29runtime_tools: Add lttng 'procs' tracingBjörn-Egil Dahlberg
2016-04-26erts: Expand trace tests for refc binariesLukas Larsson
Make sure to cover all of the refc binary cases in tracing
2016-04-26erts: Remove some dead codeLukas Larsson
2016-04-19runtime_tools: Initial lttng tracing frameworkBjörn-Egil Dahlberg
2016-04-15erts: Make trace_delivered go via sys msg dispatcher againLukas Larsson
This is needed as otherwise messages from system_profile will not be guaranteed to arrive before trace delivered.
2016-04-15erts: Add comment about future trace optimizationsLukas Larsson
2016-04-15erts: Add 'spawned' trace event to 'procs' trace flagLukas Larsson
OTP-13497 This trace event is triggered when a process is created from the process that is created.
2016-04-15erts: Extend process and port tracingLukas Larsson
This commit completes the tracing for processes so that all messages sent by a process (via nifs or otherwise) will be traced. The commit also adds tracing of all types of events from ports. When enabling tracing using erlang:trace, the 'all' flag now also enables tracing on all ports. OTP-13496