aboutsummaryrefslogtreecommitdiffstats
path: root/erts/doc
AgeCommit message (Collapse)Author
2016-05-18Merge branch 'hasse/erl_docgen/datatype_anchors/OTP-13600/ERL-141'Hans Bolinder
* hasse/erl_docgen/datatype_anchors/OTP-13600/ERL-141: kernel: Remove no longer needed anchors in documentation stdlib: Remove no longer needed anchors in documentation erts: Remove no longer needed anchors in documentation erl_docgen: Add anchors to datatypes without name attribute
2016-05-18Merge branch 'bjorn/erts/raise-doc/OTP-13599'Björn Gustavsson
* bjorn/erts/raise-doc/OTP-13599: Remove the warning about using erlang:raise/3
2016-05-17Merge branch 'sverker/hipe-amd64-code-alloc/OTP-13359'Sverker Eriksson
This merge is actually only some left overs. The bulk work for hipe-amd64-code-alloc has already been merge (without ticket number) at 42a1166b47721cd444.
2016-05-17Merge branch 'sverker/trace-send-receive-matchspec/OTP-13507'Sverker Eriksson
Second merge of this branch to master with some more docs
2016-05-17erts: Fix erl_tracer xml doc errorsLukas Larsson
2016-05-17erts: Remove no longer needed anchors in documentationHans Bolinder
2016-05-16Remove the warning about using erlang:raise/3Björn Gustavsson
There is no good reason to say that erlang:raise/3 is only for debugging. Here is an example where it can be extremely useful: try do_something(Args) catch Class:Error -> Stack = erlang:get_stacktrace(), io:format("Args: ~p\n", [Args]), erlang:raise(Class, Error, Stack) That is, we can let it crash, but log additional useful information before crashing. Noticed-by: Per Hedeland
2016-05-13Merge branch 'egil/erts/nif-format_term/OTP-13580'Björn-Egil Dahlberg
* egil/erts/nif-format_term/OTP-13580: runtime_tools: Change erts_snprintf to enif_snprintf erts: Document enif_snprintf erts: Add tests for enif_snprintf erts: Add enif_snprintf Conflicts: erts/emulator/beam/erl_nif_api_funcs.h
2016-05-12erts: Add send/receive trace to match spec user guideSverker Eriksson
Introduce section/terminology "Match target".
2016-05-12erts: Fix confusion among match spec examplesSverker Eriksson
Tracing and ETS examples were not separated correctly under the corresponding headings.
2016-05-12Revert "Prepare release"Erlang/OTP
This reverts commit bd64ad8e15d66e48b36dbe3584315dd5cfc8b59a.
2016-05-11erts: Document enif_snprintfBjörn-Egil Dahlberg
2016-05-11Prepare releaseErlang/OTP
2016-05-11Merge branch 'lukas/trace-fix'Rickard Green
* lukas/trace-fix: erts: Only allow remove from trace_status callback
2016-05-11Merge branch 'rickard/ds-proc-exit/OTP-13123'Rickard Green
* rickard/ds-proc-exit/OTP-13123: Add dirty_heap_access test case Add dirty_call_while_terminated test case Move dirty nif test cases into dirty_nif_SUITE Add better support for communication with a process executing dirty NIF Remove conditional dirty schedulers API
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.
2016-05-11Add better support for communication with a process executing dirty NIFRickard Green
- Termination of a process... - Modify trace flags of process... - Process info on process... - Register/unregister of name on process... - Set group leader on process... ... while it is executing a dirty NIF.
2016-05-10Remove conditional dirty schedulers APIRickard Green
2016-05-10erts: Fix doc typo in erts_allocSverker Eriksson
2016-05-10erts: Fix pre-bif yield current_functionLukas Larsson
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/system_info-erts_mmap/OTP-13560'Sverker Eriksson
2016-05-09Merge branch 'sverker/trace-send-receive-matchspec/OTP-13507'Sverker Eriksson
2016-05-09erts: Remove some attributes from the abstract format docHans Bolinder
Some wild attributes are no longer mentioned separately.
2016-05-04erts: Add send and 'receive' to trace_info/2Sverker Eriksson
to obtain match specs
2016-05-04erts: Fix missing type in doc for trace_patternSverker Eriksson
2016-05-04erts: Add docs for trace_pattern with 'send' and 'receive'Sverker Eriksson
2016-05-03Merge branch 'egil/erts/gc-doc/OTP-13532'Björn-Egil Dahlberg
* egil/erts/gc-doc/OTP-13532: erts: Remove forgotten atoms in erl_tracer erts: Update garbage collection trace documentation
2016-05-03Merge branch 'lukas/erts/rename_xmqd_to_hmqd/OTP-13366'Lukas Larsson
* lukas/erts/rename_xmqd_to_hmqd/OTP-13366: erts: Rename erl flag +xmqd to +hmqd in erlexec Fix proc_lib message_queue_data spec erts: Fix total_heap_size calculation for on_heap erts: Rename erl flag +xmqd to +hmqd
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
2016-05-02erts: Update garbage collection trace documentationBjörn-Egil Dahlberg
2016-04-29erts: Clarify docs for trace_pattern/3Sverker Eriksson
2016-04-29Merge branch 'egil/erts/tracing-support-lttng/OTP-13532'Björn-Egil Dahlberg
* egil/erts/tracing-support-lttng/OTP-13532: (28 commits) runtime_tools: User's guide to LTTng and dyntrace runtime_tools: Fix Dtrace build erts: Fix gc messages in tracer_SUITE erts: Fix gc messages in sensitive_SUITE erts: Fix gc messages in trace_port_SUITE tools: Update fprof tests tools: Update fprof with new gc traces runtime_tools: Update dyntrace_lttng_SUITE tests runtime_tools: Add 'return_to' for call tracing erts: Fix return_to trace callback erts: Update erl_tracer documentation erts: Fix erl_tracer documentation typos Update preloaded erl_tracer.beam erts: Update erl_tracer type specs runtime_tools: Add lttng dyntrace tests runtime_tools: Extend 'trace' and 'enabled' tracer callbacks erts: Extend 'enabled' and 'trace' tracer callbacks runtime_tools: Extend 'enabled' tracer callbacks erts: Extend 'enabled' tracer callbacks runtime_tools: Update lttng garbage collection trace ...
2016-04-29erts: Update erl_tracer documentationBjörn-Egil Dahlberg
2016-04-29erts: Fix erl_tracer documentation typosBjörn-Egil Dahlberg
2016-04-28erts: Add exact association types to the abstract format docHans Bolinder
2016-04-27Merge branch 'c-rack/fix-erl-dist-protocol-typo/OTP-13517'Rickard Green
* c-rack/fix-erl-dist-protocol-typo/OTP-13517: Fix typo in description of EPMD_DUMP_REQ response
2016-04-27Fix typo in description of EPMD_DUMP_REQ responseConstantin Rack
According to the source code, there is a space before the newline for unused nodes and no space before the newline for active ones. In current documentation, it is exactly opposite. This commit fixes the documentation to match with source code.
2016-04-26erts: Fix broken doc link to erl_tracerLukas Larsson
2016-04-26erts: Rename erl flag +xmqd to +hmqdLukas Larsson
Flags that control the heap should all fall under the +h flag
2016-04-20erts: Produce statistics for literal and hipe super carriersSverker Eriksson
called 'literal_mmap' and 'exec_mmap'. Also moved existing erts_mmap info from 'mseg_alloc' to its own system_info({allocator, erts_mmap}) with "allocators" default_mmap, literal_mmap and exec_mmap.
2016-04-20Merge branch 'sverker/hipe-code-alloc'Sverker Eriksson
2016-04-15erts: Add 'exec_alloc' for hipe codeSverker Eriksson
that uses its own super carrier (erts_exec_mmapper) to guarantee low addressed and executable memory (PROT_EXEC). Currently only used on x86_64 that needs low memory for HiPE/AMD64's small code model. By initializing erts_exec_mapper early we secure its low memory area before erts_literal_mmapper might steal it.
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: Document erlang:match_spec_test/3Lukas Larsson
OTP-13501
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: Add tracing examples in match spec docsLukas Larsson
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
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
2016-04-15Merge branch 'lukas/erts/enif_send_null_env/OTP-13495'Lukas Larsson
* lukas/erts/enif_send_null_env/OTP-13495: erts: Add enif_send with NULL as msg env