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The implementation of an ERTS internal, generic, many to one, lock-free
queue for communication between threads. The many to one scenario is
very common in ERTS, so it can be used in a lot of places in the future.
Changing to this queue from a lock based queue, however, often requires
some redesigning. This since we have often used the lock of the queue
to protect other information too.
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The ERTS internal system block functionality has been replaced by
new functionality for blocking the system. The old system block
functionality had contention issues and complexity issues. The
new functionality piggy-backs on thread progress tracking functionality
needed by newly introduced lock-free synchronization in the runtime
system. When the functionality for blocking the system isn't used
there is more or less no overhead at all. This since the functionality
for tracking thread progress is there and needed anyway.
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A number of memory allocation optimizations have been implemented. Most
optimizations reduce contention caused by synchronization between
threads during allocation and deallocation of memory. Most notably:
* Synchronization of memory management in scheduler specific allocator
instances has been rewritten to use lock-free synchronization.
* Synchronization of memory management in scheduler specific
pre-allocators has been rewritten to use lock-free synchronization.
* The 'mseg_alloc' memory segment allocator now use scheduler specific
instances instead of one instance. Apart from reducing contention
this also ensures that memory allocators always create memory
segments on the local NUMA node on a NUMA system.
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Conflicts:
erts/aclocal.m4
erts/emulator/beam/erl_db.c
erts/emulator/sys/win32/sys.c
erts/include/internal/ethread_header_config.h.in
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Fake merge with "-s ours"
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* sverker/crypto-openssl.0.9.8-PPC/OTP-9603:
[ssl] Step version for patch 1178
Touch crypto to provoke patch release (again)
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Conflicts:
erts/doc/src/notes.xml
erts/emulator/drivers/common/inet_drv.c
erts/vsn.mk
lib/kernel/test/gen_sctp_SUITE.erl
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No source change. Building with dynamic linking towards OpenSSL v0.9.8
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* peppe/common_test/r14b04_docs:
Update documentation
Rid ct_telnet of doc build warnings
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OTP-9396
OTP-9372
OTP-9155
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OTP-9572
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* origin/peppe/common_test/r14b04_tickets.fix: (35 commits)
Create temporary fix for problem with parallel test cases
Correct "Missing Suites" link
Add documentation on timetraps and start flags
Add missing tests for timetrap handling and fix remaining errors
Solve problem with ct_init/end_per_group being counted as test cases
Fix errors in test suites
Fix invalid call to undefined function
Fix problem with test_server_ctrl creating invalid conf test
Improve info in CT framework log
Update vsn.mk for common_test and test_server
Enhance logging performance
Change order of include files
Add link to last executed test suite on index page
Fix problem with location value when init config func calls help func
Fix crash when CTHook init fails
Correct error in test suite
Fix error with incorrect notification after end_per_testcase craches
Fix problem with error message not being printed correctly
Add cases to check test case status versus end_per_testcase failure
Fix incorrect call to end_tc when tc_status=ok and end_per_testcase times out
...
OTP-9600
OTP-9593
OTP-9592
OTP-9585
OTP-9584
OTP-9575
OTP-9520
OTP-9518
OTP-9501
OTP-9429
OTP-9398
OTP-9397
OTP-9396
OTP-9379
OTP-9372
OTP-9371
OTP-9370
OTP-9369
OTP-9311
OTP-9237
OTP-9155
OTP-8933
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OTP-9600
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* sverker/stub-module-code-leakage:
Prevent valgrind warning for erts_alloc_permanent_cache_aligned
[erts] Fix memory leak in erts_make_stub_module (hipe loading)
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* lukas/fix_erts_testcases/OTP-9596:
Skip create_big_boot on platforms without crypto
Remove test_server path instead of cwd for clash test
Skip getaddr_v6 test if on the ipv4_only host
Use static port for old solaris versions
Extend time to wait for zone files to be loaded
Allow out of memory exception for max_port checks
Extend slave start timeout for windows tests
Double timeout to make sure debug builds pass
Use now instead of os:timestamp
Increase timeout in scheduler_suspend for slow platforms
Skip update_cpu_info if 'taskset' cannot be found
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* sa/dialyzer-bug-fixes:
Fix typer's crash for nonexisting files
Remove unused macro
Decrease tuple arity limit
Fix bug in dataflow
OTP-9597
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This has to be done as many other applications depend
on that crypto is present.
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With the introduction of common_test as test framework
the working directory of the tests changed to be the
emulator_test directory. So we now have to remove the
../test_server directory instead. This change only affect
tests run with a emulator which has not been installed.
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Solaris version before 10 have some problem with releasing
addresses after doing a gen_udp:open, which causes inet_res
to get a econnrefused. With this fix we hope that the static
port will not collide with anything.
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This change was made in order to make slow solaris machines
work.
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This is done in order to improve timing when testing
debug builds, especially ppc debug builds.
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* anders/diameter/testsuites/OTP-9553:
Remove forgotten dbg
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OTP-9592
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OTP-9593
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* anders/diameter/testsuites/OTP-9553:
Don't install Emakefile at release_tests
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Emakefile contained compile flags that caused compilation of suites
to fail in some cases. common_test will generate an Emakefile and
diameter has no need for one of its own.
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Code area allocation was done twice; first in read_code_header()
and then in erts_make_stub_module() itself.
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* rc/eunit-2.2.1:
removed some never-matching clauses reported by dialyzer
updated author e-mails and homepages
removed cvs keywords from files
removed files that should not be checked in
OTP-9591
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* rc/edoc-0.7.9:
bumped revision
removed some never-matching clauses reported by dialyzer
Fix macro expansion in comments following Erlang types
URI-escape bytes as two hex digits always (reported by Alfonso De Gregorio)
updated author e-mail
recognize some more URI schemas in wiki text, in particular https
OTP-9590
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* raimo/sctp-getsetopts-dev/OTP-9544:
erts,kernel: Bugfix - read SCTP socket options from right protocol layer
erts: Fix bug SCTP send can only be called from controlling process
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* dgud/mnesia/prepare-release:
[mnesia] Prepare release
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* sverker/revert-md2-With-RSA-Encryption:
Revert "Prepare for release"
Revert "Support md2WithRSAEncryption certificates in public_key"
Revert "Support 'md2' hash in crypto:rsa_sign/3 and crypto:rsa_verify/4"
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* bjorn/stdlib/fix-beam_lib-race/OTP-9586:
beam_lib: Handle rare race in the crypto key server functionality
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* bjorn/fix-test-cases:
distribution_SUITE:bulk_send_bigbig/1: Fail with more information
distribution_SUITE: Use unique slave node names
busy_port_SUITE: Avoid crash in register/2
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* dgud/wx/wx-bugs:
[wx] Re-generate code
[wx] Remove optional shadowing clauses
[wx] Remove warning
[wx] Fix trailing whitespace
[wx] Test colors in textctrl
[wx] Fix cleanup memory references
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* anders/diameter/release-0.10:
Fix make dependency blunder
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