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OTP-13167
* sverk/proc-dict-opt:
erts: Add new test case pdict_SUITE:mixed
erts: Add 'fill_heap' to erts_debug:state_internal_state
erts: Rename proc dict size to arraySize
erts: Refactor proc dict with 'usedSlots'
erts: Add sizeMask for faster proc dict indexing
erts: Remove ProcDict.used
erts: Add proc dict macros ERTS_PD_START/SIZE
erts: Optimize away function "array_put" in proc dict
erts: Optimize hashing in process dictionary
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* sverk/float_SUITE-arith:
erts: Add new test cases to float_SUITE
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* sverk/check_process_code-fix:
erts: Fix bug in check_process_code for literals
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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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* maint:
Use monotonic time for call_time trace
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* rickard/ohmq-fixup/OTP-13047:
Fix asynchronous BIF timer cancellation message reply
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* lv/fix-compilation-with-vm-probes/OTP-13209:
Fix compilation with `--enable-vm-probes`
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Conflicts:
OTP_VERSION
erts/vsn.mk
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* rickard/ohmq-fixup/OTP-13047:
Fix offset_mqueue
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* erts/emulator/hipe/hipe_x86_signal.c:
add FreeBSD sigaction code, based on the Darwin (OS X) code
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* rickard/ohmq-fixup/OTP-13047:
Fix check_process_code()
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to make it easy to provoke GC inside/after a BIF or instruction.
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for naming style consistency.
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which is same as old homeSize + splitPosition.
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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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We always want the error to propagate up to the application
when a child cannot be created.
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when called by hash.c for example.
We use ASSERT from sys.h but erl_child_setup implements
its own erl_assert_error() as it doesn't link with sys.o.
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With the new forker implementation also enomem can be returned
as an indicator that it is not possible to create more ports.
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An acknowledgement of the Start command has to be managed
as we have to make sure that packages are not dropped and
also that the close calls do not happen too early.
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os_SUITE:large_output_command send a 10k large
argument to open_port({spawn,""}) which was too
small for the 2K buffer allocated for win32.
The buffer is now dynamic and any size can be used.
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When an async open port fails early, it would sometimes
leak memory.
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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.
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OS X is very strict in what it requires of you and also
gives strange error codes for some errors. In this commit
we remap EMSGSIZE to EMFILE and also precisely tune the
amount of data we send on the socket so that we can recv
only that data. If we try to recv more, recvmsg fails with
EPIPE if the remote end has been closed.
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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
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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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