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2011-03-02Merge branch 'hw/erl-clarify-detached-doc' into devNiclas Axelsson
* hw/erl-clarify-detached-doc: Mention that "-detached" implies "-noinput" OTP-9086
2011-03-02Merge branch 'ta/driver-entry-typos' into devNiclas Axelsson
* ta/driver-entry-typos: Fix a couple typos in driver_entry(3) OTP-9085
2011-03-01Merge branch 'sverker/driver_SUITE_smp_select_nice_fail/OTP-9042' into devSverker Eriksson
* sverker/driver_SUITE_smp_select_nice_fail/OTP-9042: Allow unexpected driver input event in driver_SUITE:smp_select
2011-03-01Merge branch 'sverker/doc-fixes/OTP-9002' into devSverker Eriksson
* sverker/doc-fixes/OTP-9002: Fix minor typos in erl_nif documentation
2011-02-28Merge branch 'lukas/stdlib/native_escript/OTP-9076' into devLukas Larsson
* lukas/stdlib/native_escript/OTP-9076: Update escrips to allow the -n or -compile(native) flag, which compiles the code within the escript with the +native flag. You need an HiPE enabled emulator for this to work.
2011-02-21Allow unexpected driver input event in driver_SUITE:smp_selectSverker Eriksson
epoll on Linux has been seen to sometimes trigger unexpected events. Most of the time these events are filtered by erl_check_io, but may slip up to the driver in cases when fd's are reused. Also made clear in driver docs that spurious events may happen.
2011-02-18Merge branch 'jp/dependencies_makefile' into devBjörn Gustavsson
* jp/dependencies_makefile: Add dependencies Makefile generation to erlc(1) and compile(3) Conflicts: lib/compiler/test/compile_SUITE.erl OTP-9065
2011-02-18Add dependencies Makefile generation to erlc(1) and compile(3)Jean-Sébastien Pédron
This is useful when a project is built with Makefiles and erlc(1) instead of EMakefiles. Tracking dependencies by hand is error-prone and it becomes painful when using external application headers like EUnit's one. A dependencies Makefile will look like this: module.beam: module.erl \ /usr/local/lib/erlang/lib/eunit-2.1.4/include/eunit.hrl \ header.hrl When included in the main Makefile, 'module' will be recompiled only when needed. GCC offers the same feature and new erlc(1) options are compatible with it. More informations at: http://wiki.github.com/dumbbell/otp/dependencies-makefile
2011-02-05Fix a couple typos in driver_entry(3)Tuncer Ayaz
2011-01-25Update escrips to allow the -n or -compile(native) flag, which compiles the ↵Lukas Larsson
code within the escript with the +native flag. You need an HiPE enabled emulator for this to work.
2011-01-24Mention that "-detached" implies "-noinput"Holger Weiß
Clarify that specifying "-noinput" is unnecessary if the "-detached" flag is given.
2011-01-05Fix minor typos in erl_nif documentationSverker Eriksson
enif_realloc_binary return int enif_alloc/enif_free does not accept env as first argument. enif_send return int enif_self in alphabetic order
2010-12-06Prepare releaseErlang/OTP
2010-12-03Add documentation to erlang.xml and slight correction to unicode_usage.xmlPatrik Nyblom
2010-12-01Add documentation about raw filenames and Unicode file name translation modePatrik Nyblom
2010-11-22ETS 'compressed' option.Sverker Eriksson
The compressed format is using a slighty modified variant of the extern format (term_to_binary). To not worsen key lookup's too much, the top tuple itself and the key element are not compressed. Table objects with only immediate non-key elements will therefor not gain anything (but actually consume one extra word for "alloc_size").
2010-11-18Fix two typos in the epmd documentationHolger Weiß
2010-11-18Merge branch 'pg/freebsd-cpu-affinity-and-topology' into devRickard Green
* pg/freebsd-cpu-affinity-and-topology: Add support for CPU affinity & topology detection on FreeBSD 8 OTP-8939
2010-11-18Add support for CPU affinity & topology detection on FreeBSD 8Paul Guyot
2010-11-18Merge branch 'rickard/dist/OTP-8901' into devRickard Green
* rickard/dist/OTP-8901: Be less eager to set dist entry in busy state
2010-11-09Merge branch 'sverker/doc-fixes/OTP-8880' into devSverker Eriksson
* sverker/doc-fixes/OTP-8880: Documentation update to ETS and drivers
2010-11-02Be less eager to set dist entry in busy stateRickard Green
The runtime system is now less eager to suspend processes sending messages over the distribution. The default value of the distribution buffer busy limit has also been increased from 128 KB to 1 MB. This in order to improve throughput.
2010-11-02Merge branch 'sf/erts_de_busy_limit' into devRickard Green
* sf/erts_de_busy_limit: Add flag-based setting for the distribution buffer busy limit
2010-11-02Add flag-based setting for the distribution buffer busy limitScott Lystig Fritchie
Id: OTP-8912 This patch creates a new family of flags with the "+z" prefix. It further creates a new configuration option called "dbbl" (which is the first letter of the name dist_buf_busy_limit). Example usage of this flag would be "+zdbbl 1048576". This patch creates an adjustable buffer limit for the amount of data that may be buffered by the erlang distribution code (in dist.c specifically). Before this patch, this hard-coded constant was used: #define ERTS_DE_BUSY_LIMIT (128*1024) When large binaries are transmitted between nodes (or simply a lot of medium-sized binaries), it is very easy to hit the old 128KB limit. Processes that use the erlang:system_monitor() BIF to monitor system events can be spammed by {monitor, busy_dist_port, ...} message tuples at rates of tens to even hundreds of messages/second. A larger buffer limit will allow processes to buffer more outgoing messages over the distribution. When the buffer limit has been reached, sending processes will be suspended until the buffer size has shrunk. The buffer limit is per distribution channel. A higher limit will give lower latency and higher throughput at the expense of higher memory usage. A variation of this patch has been in commercial production use in at least two companies that the author is aware of. Larger buffer values can reduce the number of {monitor, busy_dist_port, ...} system messages drastically, lower overall messaging latencies, and prevent false timeouts and 'nodedown' messages in extremely busy Mnesia systems. Test suite: there are two tests: a. In erlexec_SUITE.erl to test basic set & get of the value b. In distribution_SUITE.erl, to verify that setting +zdbbl very low will actually change behavior.
2010-10-21Prepare releaseErlang/OTP
2010-10-06Documentation update to ETS and driversSverker Eriksson
State more clearly that ETS functions will throw badarg if calling process lacks access right. And that driver stop callback should free memory allocted by start.
2010-10-05Prepare releaseErlang/OTP
2010-09-13Prepare releaseOTP_R14BErlang/OTP
2010-09-13Merge branch 'pan/epmd-vulnerabilities/OTP-8780' into devPatrik Nyblom
* pan/epmd-vulnerabilities/OTP-8780: Teach testcases to survive TIME_WAIT overload Update erl_interface doc and testsuite for epmd changes Restore null termination of input buffer Teach testcase epmd_SUITE:too_large to accept econnaborted Teach epmd_cli.c to not respond 'Killed' when killing denied Calculate minimal packet size for ALIVE2 requests correctly Document epmd and it's options properly and fixup help text Fix anomalies in epmd not yet reported as security issues Remove two buffer overflow vulnerabilities in EPMD Remove all support for ancient EPMD protocol Remove very old protocol from EPMD Conflicts: lib/erl_interface/src/epmd/epmd_port.c
2010-09-10Correct erlang.xml regarding autoimportsPatrik Nyblom
2010-09-08Merge branch 'cg/docs-fixes' into devBjörn Gustavsson
* cg/docs-fixes: Linkify applications listed under "See Also" Fix minor typos in the documentation
2010-09-07Correct typos in erlang.xmlTuncer Ayaz
semanticts -> semantics where -> were ddl -> dll NIF's -> NIFs OS-dependant -> OS-dependent
2010-09-06Fix minor typos in the documentationCristian Greco
2010-09-06Remove warning about experimental status of NIFs from erlang.xmlPatrik Nyblom
Also made the SEEALSO link at the bottom of erl_nif.xml more "erlangish".
2010-09-04Add scheduler wakup threshold as command line argumentRickard Green
The scheduler wakeup threshold is now possible to adjust at system boot. For more information see the `+swt' command line argument of `erl'.
2010-09-02Add erlang:system_info(build_type)Rickard Green
Added erlang:system_info(build_type) which makes it easier to chose drivers, NIF libraries, etc based on build type of the runtime system.
2010-08-31Document epmd and it's options properly and fixup help textPatrik Nyblom
2010-08-30Fix variable name in spawn/4 docTuncer Ayaz
ArgumentList -> Args
2010-08-30Merge branch 'sverker/NIF-64bit-integers/OTP-8746' into devPatrik Nyblom
* sverker/NIF-64bit-integers/OTP-8746: Make windows 64bit types be declared more consistently Teach Windows about the int64 functions NIF doc official support note NIF 64-bit integer support
2010-08-30Merge branch 'rickard/cpu-info/OTP-8765' into devRickard Green
* rickard/cpu-info/OTP-8765: Initialize environment functionality after thread lib Fix faulty assertions Implement automatic detection of CPU topology on Windows Make it possible to reread and update detected CPU information
2010-08-30Implement automatic detection of CPU topology on WindowsRickard Green
The CPU topology is now automatically detected on Windows systems with less than 33 logical processors. The runtime system will now, also on Windows, by default bind schedulers to logical processors using the 'default_bind' bind type if the amount of schedulers is at least equal to the amount of logical processors configured, binding of schedulers is supported, and a CPU topology is available at startup.
2010-08-20Merge branch 'bjorn/remove-elib_malloc/OTP-8764' into devBjörn Gustavsson
* bjorn/remove-elib_malloc/OTP-8764: erts: Remove broken elib_malloc erts: Remove the unused mem_drv driver erts: Remove stray pre-ISO-C compatibility macros erts: Remove unused decl.h
2010-08-19Merge branch 'hb/type_reference/OTP-8733' into devHans Bolinder
* hb/type_reference/OTP-8733: reference() substituted for ref() in docs
2010-08-18Make it possible to reread and update detected CPU informationRickard Green
Calling erlang:system_info/1 with the new argument 'update_cpu_info' will make the runtime system reread and update the internally stored CPU information. For more information see the documentation of erlang:system_info(update_cpu_info).
2010-08-17erts: Remove broken elib_mallocBjörn Gustavsson
elib_malloc is an alternate memory allocator that is no longer possible to build.
2010-08-10Merge branch 'rickard/ethread-rewrite/OTP-8544' into devRickard Green
* rickard/ethread-rewrite/OTP-8544: Rewrite ethread library
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.
2010-07-23NIF doc official support noteSverker Eriksson
2010-07-23NIF 64-bit integer supportSverker Eriksson
2010-07-08reference() substituted for ref() in docsHans Bolinder