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Thanks to Michał Ptaszek for bringing this embarrassing formatting error to
my attention. Many DTrace/SystemTap trace strings are incorrectly
truncated at 4/8 bytes, depending on the CPU word size. This patch expands
the work from commit d032e097 by zheng siyao.
Michał's report to the erlang-bugs list can be found at:
http://erlang.org/pipermail/erlang-bugs/2014-March/004250.html
Conflicts:
erts/emulator/beam/beam_emu.c
erts/emulator/beam/copy.c
erts/emulator/beam/dist.c
erts/emulator/beam/erl_async.c
erts/emulator/beam/erl_bif_port.c
erts/emulator/beam/erl_port_task.c
erts/emulator/beam/erl_process.c
erts/emulator/beam/io.c
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rickard/r16/port-optimizations/OTP-10336
* rickard/port-optimizations/OTP-10336:
Change annotate level for emacs-22 in cerl
Update etp-commands
Add documentation on communication in Erlang
Add support for busy port message queue
Add driver callback epilogue
Implement true asynchronous signaling between processes and ports
Add erl_drv_[send|output]_term
Move busy port flag
Use rwlock for driver list
Optimize management of port tasks
Improve configuration of process and port tables
Remove R9 compatibility features
Use ptab functionality also for ports
Prepare for use of ptab functionality also for ports
Atomic port state
Generalize process table implementation
Implement functionality for delaying thread progress from unmanaged threads
Conflicts:
erts/doc/src/erl_driver.xml
erts/doc/src/erlang.xml
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/beam_bp.c
erts/emulator/beam/beam_emu.c
erts/emulator/beam/bif.c
erts/emulator/beam/copy.c
erts/emulator/beam/erl_alloc.c
erts/emulator/beam/erl_alloc.types
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_bif_port.c
erts/emulator/beam/erl_bif_trace.c
erts/emulator/beam/erl_init.c
erts/emulator/beam/erl_message.c
erts/emulator/beam/erl_port_task.c
erts/emulator/beam/erl_process.c
erts/emulator/beam/erl_process.h
erts/emulator/beam/erl_process_lock.c
erts/emulator/beam/erl_trace.c
erts/emulator/beam/export.h
erts/emulator/beam/global.h
erts/emulator/beam/io.c
erts/emulator/sys/unix/sys.c
erts/emulator/sys/vxworks/sys.c
erts/emulator/test/port_SUITE.erl
erts/etc/unix/cerl.src
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/prim_inet.beam
erts/preloaded/src/prim_inet.erl
lib/hipe/cerl/erl_bif_types.erl
lib/kernel/doc/src/inet.xml
lib/kernel/src/inet.erl
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* rickard/tab-unref-thr-prgr/OTP-10167:
Use thread progress instead of scheduling misc aux work were possible
Conflicts:
erts/emulator/beam/erl_process.h
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* rickard/proc-sched/OTP-9892:
Read message queue lengths while having lock
Remove development debug code
Fix bug scheduling free processes
Conflicts:
erts/emulator/beam/erl_message.c
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Functionality for scheduling operations at thread progress later
has been introduced.
Deallocation of ETS table structures were previously done by scheduling
misc aux work. Deallocation of process structures (not released yet)
was also implemented this way. Instead of using the misc aux work
functionality these implementation now use the newly introduced
functionality for scheduling operations at thread progress later. By
using this new functionaliy we reduce the amount of memory
allocation/deallocation operations needed.
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* sz/dtrace-message-send-fix:
DTrace bug in message-send
OTP-10142
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* maint:
Remove stale code for hybrid heap and incremental GC
Remove the hipe_bifs:show_message_area/0 BIF
Remove support for erlang:system_info(global_heaps_size)
Remove the erlang:garbage_collect_message_area/0 BIF
Remove workarounds for hybrid and shared heaps in test suites
Conflicts:
erts/doc/src/erlang.xml
erts/emulator/beam/erl_message.c
erts/emulator/beam/erl_process.c
erts/emulator/beam/erl_process.h
erts/emulator/hipe/hipe_bif2.tab
lib/hipe/cerl/erl_bif_types.erl
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dtrace doesn't print sender pid and receiver pid in message related
probe correctly, it truncates pid string to 7 characters on 64bit
platform(or 3 characters on 32bit platform). The dtrace related code
did not set the string length correctly, it sets the string length to
the length of a pointer rather than the buffer length.
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The hybrid heap emulator was last working in the non-SMP R11B
run-time system. When the constant pools were introduced in R12B,
the hybrid heap emulator was not updated to handle them.
At this point, the harm from reduced readability of the code is
greater than any potential usefulness of keeping the code.
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User tags in a dynamic trace enabled VM are spread throughout the system
in the same way as seq_trace tokens. This is used by the file module
and various other modules to get hold of the tag from the user process
without changing the protocol.
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Add probes to the virtual machine, except (mostly) the efile_drv.c
driver and other file I/O-related source files.
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Since refc binaries are now supported in literal pools, there is no
longer any need to allow the creation of over-sized heap binaries.
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This will reduce the risk of integer wrapping in bin vheap counting.
The vheap size series will now use the golden ratio instead of doubling
and fibonacci sequences.
OTP #8730
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Merging the three off-heap lists (binaries, funs and externals) into
one list. This reduces memory consumption by two words (pointers) per
ETS object.
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New NIF features:
Send messages from a NIF, or from thread created by NIF, to any local
process (enif_send)
Store terms between NIF calls (enif_alloc_env, enif_make_copy)
Create binary terms with user defined memory management
(enif_make_resource_binary)
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fragments was created. This will mainly benefit NIFs that return
large compound terms.
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