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path: root/erts/test/ethread_SUITE.erl
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2015-06-18Change license text to APLv2Bruce Yinhe
2012-03-30Update copyright yearsBjörn-Egil Dahlberg
2012-03-28Merge branch 'lukas/system/skip_fenris_max_threads' into maintBjörn-Egil Dahlberg
* lukas/system/skip_fenris_max_threads: Skip on buggy solaris
2012-03-26Skip on buggy solarisLukas Larsson
2012-03-26Rename fin_per_testcase to end_per_testcaseLukas Larsson
2012-01-04erts: Remove unused code in testsuitesBjörn-Egil Dahlberg
2011-12-06Skip detached test-case on MacOSX LeopardRickard Green
2011-06-14Improve ethread atomicsRickard Green
The ethread atomics API now also provide double word size atomics. Double word size atomics are implemented using native atomic instructions on x86 (when the cmpxchg8b instruction is available) and on x86_64 (when the cmpxchg16b instruction is available). On other hardware where 32-bit atomics or word size atomics are available, an optimized fallback is used; otherwise, a spinlock, or a mutex based fallback is used. The ethread library now performs runtime tests for presence of hardware features, such as for example SSE2 instructions, instead of requiring this to be determined at compile time. There are now functions implementing each atomic operation with the following implied memory barrier semantics: none, read, write, acquire, release, and full. Some of the operation-barrier combinations aren't especially useful. But instead of filtering useful ones out, and potentially miss a useful one, we implement them all. A much smaller set of functionality for native atomics are required to be implemented than before. More or less only cmpxchg and a membar macro are required to be implemented for each atomic size. Other functions will automatically be constructed from these. It is, of course, often wise to implement more that this if possible from a performance perspective.
2011-03-11Update copyright yearsBjörn-Egil Dahlberg
2011-02-17Rename Suite Callback to Common Test HookLukas Larsson
2011-02-17Fix formatting for systemLukas Larsson
2011-02-17Add init_per_suite and end_per_suiteLukas Larsson
2011-02-17Add ts_install_scb to suite/0Lukas Larsson
2011-02-17Update system tests to conform with common_test standardLukas Larsson
2010-12-14Remove unused ethread time functionalityRickard Green
2010-12-01Skip ethread_SUITE:max_threads test on MacOS X LeopardRickard Green
For some reason pthread_create() crashes when more threads cannot be created, instead of returning an error code on our MacOS X Leopard machine...
2010-08-10Rewrite ethread libraryRickard Green
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.
2010-01-22Merge branch 'bg/avoid-etop-in-include' into ccase/r13b04_devErlang/OTP
* bg/avoid-etop-in-include: epmd tests: fix build of test suites on Windows system test: fix build of test suites on Windows
2010-01-20system test: fix build of test suites on WindowsBjörn Gustavsson
On Windows, the ERL_TOP environment variable contains a path that only is valid for cygwin-enabled programs, such as 'make'. It is not meaningful to pass the value of $ERL_TOP in the -I option to the Erlang compiler, because the Erlang emulator does not interpret cygwin paths correctly. Therefore, -include("test_server.hrl") will fail to find test_server.hrl. Work around the problem by using -include_lib().
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP