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Large parts of the ethread library have been rewritten. The
ethread library is an Erlang runtime system internal, portable
thread library used by the runtime system itself.
Most notable improvement is a reader optimized rwlock
implementation which dramatically improve the performance of
read-lock/read-unlock operations on multi processor systems by
avoiding ping-ponging of the rwlock cache lines. The reader
optimized rwlock implementation is used by miscellaneous
rwlocks in the runtime system that are known to be read-locked
frequently, and can be enabled on ETS tables by passing the
`{read_concurrency, true}' option upon table creation. See the
documentation of `ets:new/2' for more information.
The ethread library can now also use the libatomic_ops library
for atomic memory accesses. This makes it possible for the
Erlang runtime system to utilize optimized atomic operations
on more platforms than before. Use the
`--with-libatomic_ops=PATH' configure command line argument
when specifying where the libatomic_ops installation is
located. The libatomic_ops library can be downloaded from:
http://www.hpl.hp.com/research/linux/atomic_ops/
The changed API of the ethread library has also caused
modifications in the Erlang runtime system. Preparations for
the to come "delayed deallocation" feature has also been done
since it depends on the ethread library.
Note: When building for x86, the ethread library will now use
instructions that first appeared on the pentium 4 processor. If
you want the runtime system to be compatible with older
processors (back to 486) you need to pass the
`--enable-ethread-pre-pentium4-compatibility' configure command
line argument when configuring the system.
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Final merge of all unexpected differences from dev to release.
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Make erl_interface build on VxWorks
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Ssl has now switched default implementation and removed deprecated
certificate handling. All certificate handling is done by the public_key
application.
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Ssl has now switched default implementation and removed deprecated
certificate handling. All certificate handling is done by the public_key
application.
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* egil/eprof:
Fix eprof to handle error cases
Dialyzer cleanup for eprof
Fix fprof_SUITE to use new eprof API
Switch pattern API for eprof profile with mfa
Update eprof documentation
Update eprof_SUITE with more basic tests
Rename sorting choices for eprof
Teach eprof to align text output
Add dump functionality to eprof
Add log functionality to eprof
Update eprof tests to reflect new eprof
Add start timestamp to eprof profiling
Teach eprof to use the new breakpoints
OTP-8706 egil/eprof
eprof has been reimplemented with support in the Erlang virtual machine and
is now both faster (i.e. slows down the code being measured less) and
scales much better. In measurements we saw speed-ups compared to the old
eprof ranging from 6 times (for sequential code that only uses one
scheduler/core) up to 84 times (for parallel code that uses 8 cores).
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* peppe/common_test_r14_dev_2:
Misc documentation updates
Add documentation for run_test program
Step vsn for test_server to 3.4
Make {repeat*,N} property in group execute the group N times exactly
Fix so that ct_run converts relative diretories in the code path to absolute
Fix bug in handling framework:end_tc timeouts
Fix bug that prevents the interactive shell mode to start properly
Fix failing multiply timetrap test case
Minor fixes in code and test suites
Add support for executing pre-loaded suites (e.g. modules loaded as binaries)
Add test suite for remote loading of binary suites
Fix error with {repeat,0} property in groups causing double iterations
Add support for config info functions (e.g. init_per_suite/0)
Add support for dynamic timetrap handling
Have end_per_testcase run even after timetrap_timeout and abort_testcase
Flush old DOWN messages in demonitor
Add groups in test specifications
Add new tests for test case groups and test specifications
Improve and fix various test suites
Add event_handler_init start flag that can pass init arguments to event handlers
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OTP-8703 peppe/common_test_r14_dev_2
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Ssl has now switched default implementation and removed deprecated
certificate handling. All certificate handling is done by the public_key
application.
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* hm/reltool-find-regular:
Improve lookup of erl files
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To be consistent with the behaviour of the run_test repeat flag/option, the repeat* group property has been changed to specify absolute number of test runs. Previously {repeat,N} meant "execute the group 1 time + N repeats". Now it means "execute the group N times".
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Directories added with run_test -pa or -pz in the pre erl_args part of the command line will be converted from relative to absolute, this to avoid confusion when Common Test switches working directory during the test run.
Also fixed in this commit: Problem with timeouts during init_tc or end_tc (in the Test Server framework).
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Also fixed bug in test_server that calls end_per_testcase after test case timeout or abortion.
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Also fixed bug: return value {fail,Reason} from end_tc(init_per_suite) was ignored.
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Ongoing work...
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Also changed: The userconfig option in ct:run_test/1 from 3-tuple to 2-tuple.
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ct_run:script_start() interface
The possibility to pass start arguments to ct_run:start_script/0 by means of an application environment variable has been implemented. This will be used by ct_test_support for automatic testing of all common_test start interfaces.
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Documentation still missing.
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General documentation and code updates.
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Documentation changed to specify Firefox as default browser on unix/linux.
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Common Test may now be started with the program run_test instead of the legacy shell script with the same name.
Minor updates have also been made to the Webtool application.
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node_start+eval -> init(node_start, eval)
Also include some documentation updates.
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