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false if improper list
false if length > UINT_MAX
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* lukas/erts/msacc:
Update preloaded modules
erts: Make msacc alloctor type thread safe
Silence compiler
erts: Fix msacc testcase on some windowses
erts: Add power saving cpu feature tests and use them
erts: Refactor perf counter internal interface
erts: Add rdtscp instruction check
erts: Fix hrtime for windows
erts: use correct function for perf counter on non-x86
erts: Fix msacc win32 debug compile error
erts: Add microstate accounting
erts, kernel: Add os:perf_counter function
erts: Add ERTS_WRITE_UNLIKELY
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* maint:
Use nano second time unit in tracing
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* rickard/monotonic-time-improvements/OTP-13222:
Use nano second time unit in tracing
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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
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The perf_counter is a very very cheap and high resolution timer
that can be used to timestamp system events. It does not have
monoticity guarantees, but should on most OS's expose a monotonous
time.
A special instruction has been created for this counter to further
speed up fetching it.
OTP-12908
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* maint:
Introduce time management in native APIs
Introduce time warp safe replacement for safe_fixed option
Introduce time warp safe trace timestamp formats
Conflicts:
erts/emulator/beam/erl_bif_trace.c
erts/emulator/beam/erl_driver.h
erts/emulator/beam/erl_nif.h
erts/emulator/beam/erl_trace.c
erts/preloaded/ebin/erlang.beam
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* rickard/monotonic-time-improvements/OTP-13222:
Introduce time management in native APIs
Introduce time warp safe replacement for safe_fixed option
Introduce time warp safe trace timestamp formats
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* lukas/erts/gc_info/OTP-13265:
erts: Add garbage_collection_info to process_info/2
Conflicts:
erts/emulator/beam/erl_bif_info.c
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* siri/document-path-flag/OTP-13060:
Add documentation of '-path' flag to 'erl'
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New timestamp options for trace, sequential trace, and
system profile:
- monotonic_timestamp
- strict_monotonic_timestamp
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More verbose, but hopefully more readable than before.
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* sverk/trace-doc-typo:
erts: Correct faulty doc for erlang:trace/3
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The entire MFA tuple is replaced with 0, not just Arity.
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This flag replaces the path specified in the boot script. It has
always existed, but was earlier only documented in SASL (script).
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* maint:
Light weight statistics of run queue lengths
Conflicts:
erts/preloaded/ebin/erlang.beam
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* rickard/rq-len/OTP-13201:
Light weight statistics of run queue lengths
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- statistics(total_run_queue_lengths)
- statistics(run_queue_lengths)
- statistics(total_active_tasks)
- statistics(active_tasks)
Conflicts:
erts/emulator/beam/erl_process.c
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Conflicts:
OTP_VERSION
erts/vsn.mk
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Custom loaders are no longer supported. Most of the documentation
for them were removed in c8a7d2d7.
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The 'init' module fetches command line parameters and passes them
to erl_prim_loader:start/3.
The code can be simplified if 'init' calls a new
erl_prim_loader:start/0 function that itself fetches the necessary
command line parameters. Also remove the documentation for the start()
function, since it there is no way that it can be usefully called by
a user application.
While we are at it, also get rid of '-id' command line parameter,
which is fetched and stored but never actually used.
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=== OTP-18.2 ===
Changed Applications:
- asn1-4.0.1
- common_test-1.11.1
- compiler-6.0.2
- crypto-3.6.2
- dialyzer-2.8.2
- diameter-1.11.1
- erl_docgen-0.4.1
- erl_interface-3.8.1
- erts-7.2
- eunit-2.2.12
- hipe-3.14
- inets-6.1
- jinterface-1.6.1
- kernel-4.1.1
- observer-2.1.1
- parsetools-2.1.1
- public_key-1.1
- runtime_tools-1.9.2
- sasl-2.6.1
- snmp-5.2.1
- ssh-4.2
- ssl-7.2
- stdlib-2.7
- test_server-3.9.1
- tools-2.8.2
- typer-0.9.10
- wx-1.6
- xmerl-1.3.9
Unchanged Applications:
- cosEvent-2.2
- cosEventDomain-1.2
- cosFileTransfer-1.2
- cosNotification-1.2
- cosProperty-1.2
- cosTime-1.2
- cosTransactions-1.3
- debugger-4.1.1
- edoc-0.7.17
- eldap-1.2
- et-1.5.1
- gs-1.6
- ic-4.4
- megaco-3.18
- mnesia-4.13.2
- odbc-2.11.1
- orber-3.8
- os_mon-2.4
- ose-1.1
- otp_mibs-1.1
- percept-0.8.11
- reltool-0.7
- syntax_tools-1.7
- webtool-0.9
Conflicts:
OTP_VERSION
erts/vsn.mk
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* lukas/erts/forker: (28 commits)
erts: Never abort in the forked child
erts: Mend ASSERT makro for erl_child_setup
erts: Allow enomem failures in port_SUITE
erts: iter_port sleep longer on freebsd
erts: Allow one dangling fd if there is a gethost port
erts: Only use forker StackAck on freebsd
erts: It is not possible to exit the forker driver
erts: Add forker StartAck for port start flowcontrol
erts: Fix large open_port arg segfault for win32
erts: Fix memory leak at async open port
kernel: Remove cmd server for unix os:cmd
erts: Add testcase for huge port environment
erts: Move os_pid to port hash to child setup
erts: Handle all EINTR and EAGAIN cases in child setup
erts: Make child_setup work with large environments
erts: Fix forker driver ifdefs for win32
erts: Fix uds socket handling for os x
erts: Fix dereferencing of unaligned integer for sparc
erts: Flatten too long io vectors in uds write
erts: Add fd count test for spawn_driver
...
Conflicts:
erts/emulator/beam/erl_node_tables.c
erts/preloaded/src/erts_internal.erl
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OTP-13087
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OTP-13086
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* bjorn/deprecate-random/OTP-12502:
Deprecate the 'random' module
Eliminate mentions of 'random' in documentation
mnesia tests: Replace 'random' with 'rand'
percept tests: Replace 'random' with 'rand'
system tests: Replace 'random' with 'rand'
common_test tests: Replace 'random' with 'rand'
gs: Remove the contribs directory
wx: Replace 'random' with 'rand'
stdlib tests: Replace 'random' with 'rand'
kernel test: Replace 'random' with 'rand'
debugger tests: Replace 'random' with 'rand'
compiler tests: Replace 'random' with 'rand'
Emulator test suite: Replace use of 'random' with 'rand'
Use 'rand' instead of the obsolete 'random' module
compile: Eliminate use of the obsolete 'random' module
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* maint:
erts: Correct the types section in The Abstract Format document
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Fixed a mistake in commit 23885a.
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* rickard/ohmq-fixup/OTP-13047:
Replace off_heap_message_queue option with message_queue_data option
Always use literal_alloc
Distinguish between GC disabled by BIFs and other disabled GC
Fix process_info(_, off_heap_message_queue)
Off heap message queue test suite
Remove unused variable
Fix memory leaks
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The message_queue_data option can have the values
- off_heap
- on_heap
- mixed
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Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/vsn.mk
otp_versions.table
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* maint:
doc: Fix some minor issues in Types and Function Specifications
erts: Remove CDATA from The Abstract Format document
erts: Correct the types section in The Abstract Format document
stdlib: Correct pretty-printing of map types
stdlib: Pretty-print constraints as 'V :: T'
Conflicts:
erts/doc/src/absform.xml
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The Types section is more consistent with Kostis' text in The
Reference Manual.
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Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/vsn.mk
lib/kernel/doc/src/notes.xml
lib/kernel/src/kernel.appup.src
lib/kernel/vsn.mk
lib/ssl/doc/src/notes.xml
lib/ssl/src/ssl.appup.src
lib/ssl/src/ssl_cipher.erl
lib/ssl/vsn.mk
otp_versions.table
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