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2014-01-28Merge branch 'vinoski/ds'Rickard Green
* vinoski/ds: initial support for dirty schedulers and dirty NIFs
2014-01-28initial support for dirty schedulers and dirty NIFsSteve Vinoski
Add initial support for dirty schedulers. There are two types of dirty schedulers: CPU schedulers and I/O schedulers. By default, there are as many dirty CPU schedulers as there are normal schedulers and as many dirty CPU schedulers online as normal schedulers online. There are 10 dirty I/O schedulers (similar to the choice of 10 as the default for async threads). By default, dirty schedulers are disabled and conditionally compiled out. To enable them, you must pass --enable-dirty-schedulers to the top-level configure script when building Erlang/OTP. Current dirty scheduler support requires the emulator to be built with SMP support. This restriction will be lifted in the future. You can specify the number of dirty schedulers with the command-line options +SDcpu (for dirty CPU schedulers) and +SDio (for dirty I/O schedulers). The +SDcpu option is similar to the +S option in that it takes two numbers separated by a colon: C1:C2, where C1 specifies the number of dirty schedulers available and C2 specifies the number of dirty schedulers online. The +SDPcpu option allows numbers of dirty CPU schedulers available and dirty CPU schedulers online to be specified as percentages, similar to the existing +SP option for normal schedulers. The number of dirty CPU schedulers created and dirty CPU schedulers online may not exceed the number of normal schedulers created and normal schedulers online, respectively. The +SDio option takes only a single number specifying the number of dirty I/O schedulers available and online. There is no support yet for programmatically changing at run time the number of dirty CPU schedulers online via erlang:system_flag/2. Also, changing the number of normal schedulers online via erlang:system_flag(schedulers_online, NewSchedulersOnline) should ensure that there are no more dirty CPU schedulers than normal schedulers, but this is not yet implemented. You can retrieve the number of dirty schedulers by passing dirty_cpu_schedulers, dirty_cpu_schedulers_online, or dirty_io_schedulers to erlang:system_info/1. Currently only NIFs are able to access dirty scheduler functionality. Neither drivers nor BIFs currently support dirty schedulers. This restriction will be addressed in the future. If dirty scheduler support is present in the runtime, the initial status line Erlang prints before presenting its interactive prompt will include the indicator "[ds:C1:C2:I]" where "ds" indicates "dirty schedulers", "C1" indicates the number of dirty CPU schedulers available, "C2" indicates the number of dirty CPU schedulers online, and "I" indicates the number of dirty I/O schedulers. Document The dirty NIF API in the erl_nif man page. The API closely follows Rickard Green's presentation slides from his talk "Future Extensions to the Native Interface", presented at the 2011 Erlang Factory held in the San Francisco Bay Area. Rickard's slides are available online at http://bit.ly/1m34UHB . Document the new erl command-line options, the additions to erlang:system_info/1, and also add the erlang:system_flag/2 dirty scheduler documentation even though it's not yet implemented. To determine whether the dirty NIF API is available, native code can check to see whether the C preprocessor macro ERL_NIF_DIRTY_SCHEDULER_SUPPORT is defined. To check if dirty schedulers are available at run time, native code can call the boolean enif_have_dirty_schedulers() function, and Erlang code can call erlang:system_info(dirty_cpu_schedulers), which raises badarg if no dirty scheduler support is available. Add a simple dirty NIF test to the emulator NIF suite.
2014-01-28Merge branch 'rzezeski/rz_fix_dtrace_illumos/OTP-11622'Lukas Larsson
* rzezeski/rz_fix_dtrace_illumos/OTP-11622: Fix DTrace build on Illumos
2014-01-22Merge branch 'bjorn/erts/zlib-1.2.8'Björn Gustavsson
* bjorn/erts/zlib-1.2.8: configure: Prefer the system's zlib over own our zlib source Update preloaded modules Add the 'rle' zstrategy Don't make gzio.c dependent on the zutil.h header file Update zlib to 1.2.8 erts/zlib: Remove unused file example.c
2014-01-17configure: Prefer the system's zlib over own our zlib sourceBjörn Gustavsson
WxWidgets (used by the wx application) also uses zlib. To ensure that the run-time system and WxWidgets use the same version of zlib, use the system's zlib if present. Also, the system's zlib may be specially optimized and thus faster than our own generic source code. We only use zlib versions that are "good enough". For now, that means 1.2.5 or higher. Remove the option --enable-shared-zlib and add the option --enable-builtin-zlib to force the use of the built-in zlib.
2014-01-10Add support for the separate tinfo library from ncursesDirkjan Ochtman
Recent versions of ncurses can be built with terminfo symbols moved into the separate tinfo library. This patch prevents erts configure from dying by adding the tinfo library to list of termcap lib candidates.
2013-12-07Fix DTrace build on IllumosRyan Zezeski
DTrace was recently patched in Illumos to fail to create an object file if no probes are found. * https://www.illumos.org/issues/4248 * https://github.com/illumos/illumos-gate/commit/54a20ab41aadcb81c53e72fc65886e964e9add59 This patch fixes two issues: * Modify the configure script to pass an object file to `dtrace -G` that actually invokes a probe. * Remove creation of `dtrace_user.o` from the dyntrace Makefile. In a previous commit [1] Scott Fritchie relocated all the user probes into the VM proper due to difficulties with DTrace probes in shared libraries. The `dtrace_user.d` file is now empty and generates a header file with nothing in it. There is no longer any reason to generate `dtrace_user.o` because all the probes are in the VM. Thus all the steps for building `dtrace_user.o` have been removed. [1]: https://github.com/erlang/otp/commit/75552bd3bb4e7f3cf4dab81a5c81cf73b1d3fb99
2013-12-03Merge branch 'maint'Björn-Egil Dahlberg
2013-11-26erts: Let cc determine default wordsize for darwin buildBjörn-Egil Dahlberg
2013-11-26Merge branch 'maint'Raimo Niskanen
Conflicts: erts/preloaded/ebin/prim_inet.beam lib/kernel/test/gen_sctp_SUITE.erl
2013-11-26Merge branch 'maint-r16' into maintRaimo Niskanen
2013-11-25Merge branch 'maint'Rickard Green
* maint: Fix observer retrieval of alloc info Fix documentation of the +MMsco switch Replace the +MMscmgc switch with +MMscrfsd Add switch for disabling sys_alloc carriers Add support for locking mappings to physical memory
2013-11-07Implement prim_inet:socknames/1,2 and prim_inet:peernames/1,2Raimo Niskanen
2013-11-05Add support for locking mappings to physical memoryRickard Green
Using "+Mlpm all" switch all mappings made by the emulator will be locked into physical memory.
2013-11-01Merge branch 'maint'Lukas Larsson
* maint: erts: Add max alignment posix_memalign configure check
2013-11-01erts: Add max alignment posix_memalign configure checkLukas Larsson
On some OSs posix_memalign exists, but it does not allow for alignment greater than the current page size. So we have to do a runtime check for alignment size and also add cross compile options.
2013-09-30Merge branch 'maint'Fredrik Gustafsson
2013-09-25Merge branch 'rickard/aligned-sys_alloc-carriers/OTP-11318' into ↵Rickard Green
rickard/aligned-sys_alloc-carriers_maint/OTP-11318 Conflicts: erts/emulator/beam/erl_alloc.c erts/emulator/beam/erl_alloc_util.c erts/emulator/beam/erl_alloc_util.h
2013-09-25Implement platform specific aligned sys_alloc and use when supportedRickard Green
erts_sys_aligned_alloc() is currently implemented using posix_memalign if it exist, or using _aligned_malloc on Windows. If erts_sys_aligned_alloc() exist allocators will create sys_alloc carriers similar to how this was done pre-R16.
2013-09-04Merge branch 'maint'Raimo Niskanen
Conflicts: erts/preloaded/ebin/prim_inet.beam
2013-09-04Merge branch 'raimo/linux-network-namespace-sockopt/OTP-11157' into maintRaimo Niskanen
* raimo/linux-network-namespace-sockopt/OTP-11157: Document socket option 'netns' Rudimentary test Make netns option value a string Implement netns for SCTP + bugfixes Implement netns option for TCP and UDP Implement emulator netns support for TCP and UDP
2013-08-21erts: Add support for static linked-in driversLukas Larsson
None of the OTP linked-in driver are supported
2013-08-21erts: Add option to include nifs staticallyLukas Larsson
Both crypto and asn1 are supported.
2013-07-29Bailout if no native implementations are foundLukas Larsson
Some basic tests are already done in configure. This makes sure we cover all cases by bailing out when compiling as well.
2013-07-17Implement emulator netns support for TCP and UDPRaimo Niskanen
2013-07-09Refuse to build SMP runtime by default without native atomicsRickard Green
Build with fallback can be enabled by passing the `configure` command line argument `--disable-smp-require-native-atomics`
2013-06-05Merge branch 'pan/raise_windows_version' into maintPatrik Nyblom
* pan/raise_windows_version: Raise the minimal supported Windows version OTP-11145
2013-05-28add support for hipe on Raspberry Pi (armv6l)Klaus Alfert
To enable hipe on a Raspberry Pi, configure has to detect the ARM processor correctly. On a Pi, uname detects the CPU as armv6l. Other CPU variants are already detected with ARCH=arm, so does now the armv6l of the Raspberry Pi.
2013-05-08Merge branch 'nox/wide-chars/OTP-11088' into maintFredrik Gustafsson
* nox/wide-chars/OTP-11088: Support wide characters in the shell through wcwidth() Fix bogus DEBUGLOG() incantations in ttsl_drv
2013-05-06Raise the minimal supported Windows versionPatrik Nyblom
From previous 0x0500 to 0x0501, which obsoletes W2k. This is needed for full IPV6 support.
2013-04-27Support wide characters in the shell through wcwidth()Anthony Ramine
There is one remaining bug where ttsl_drv's state ends up inconsistent with the terminal own state; when a wide character is entered on the last column of the terminal. Reported-by: Loïc Hoguin
2013-04-27Do not use -mdynamic-no-pic on DarwinAnthony Ramine
Latest OS X versions ignore this flag as non PIC objects are discouraged.
2013-03-18Make configure test for fallocate try to linkPatrik Nyblom
This hopefully detects fault glibc's where fallocate64 is nonexistent.
2013-02-15Do not use writev on osx snow leopardLukas Larsson
writev will for large files return 0 indefinetely causing the efile driver to go into an infinite loop.
2013-01-25Update copyright yearsBjörn-Egil Dahlberg
2013-01-21[erl_docgen] Add xmllint target for the documentation and fix some DTD errorsLars Thorsen
2013-01-15Merge branch 'dgud/wx/fix-wx-2.9-compat/OTP-10407'Dan Gudmundsson
* dgud/wx/fix-wx-2.9-compat/OTP-10407: (26 commits) wx: Fix comments wx: Workaround wx-2.9 bugs wx: Mac fixes wx: Fix demo and tests wx: Allow 64 bits compilation on mac, requires wxWidgets-2.9 appmon: Move runtime part to runtime_tools app reltool: fix wxWidgets-2.9 compability debugger: Fix 2.9 compat observer: Fix check for graphics contexts Observer: Fix distribution dialog observer: Fix font sizes wx: Fix the demo wx: Fix loading icons and cursors in Windows wx: Remove unnecessary casts wx: Fix changed getfunctions wx: Depricate wxCursor new functions wx: Fix int to enum wx: Include correct m4 file in 2.9 wx: Update examples so they work with both wxWidgets 2.8 and 2.9 wx: Modify tests so they work on wxWidgets-2.9 ...
2013-01-11If GCC is used, treat -Wreturn-type as errorTuncer Ayaz
2013-01-10erts: Fix xcomp configure for fallocateBjörn-Egil Dahlberg
* Default to 'no' for finding a working fallocate
2013-01-09Add file:allocate/3 operationFilipe David Manana
This operation allows pre-allocation of space for files. It succeeds only on systems that support such operation. The POSIX standard defines the optional system call posix_fallocate() to implement this feature. However, some systems implement more specific functions to accomplish the same operation. On Linux, if the more specific function fallocate() is implemented, it is used instead of posix_fallocate(), falling back to posix_fallocate() if the fallocate() call failed (it's only supported for the ext4, ocfs2, xfs and btrfs file systems at the moment). On Mac OS X it uses the specific fcntl() operation F_PREALLOCATE, falling back to posix_fallocate() if it's available (at the moment Mac OS X doesn't provide posix_fallocate()). On any other UNIX system, it uses posix_fallocate() if it's available. Any other system not providing this system call or any function to pre-allocate space for files, this operation always fails with the ENOTSUP POSIX error.
2013-01-09wx: Allow 64 bits compilation on mac, requires wxWidgets-2.9Dan Gudmundsson
Testing using wxWidgets-2.9 on mac
2012-10-31Merge branch 'raimo/IPV6_V6ONLY/OTP-8928'Raimo Niskanen
* raimo/IPV6_V6ONLY/OTP-8928: kernel: Document socket option ipv6_v6only kernel: Add test cases for socket option ipv6_v6only erts,kernel: Implement socket option ipv6_v6only in erlang code erts: Implement socket option IPV6_V6ONLY erts: Add configure test for IPV6_V6ONLY
2012-10-12erts: Add configure test for IPV6_V6ONLYRaimo Niskanen
2012-09-06Fix linking of shared libraries on OpenBSDBjörn-Egil Dahlberg
Reported-by: Matthew Dempsky
2012-08-27Merge branch 'psi/fix-leap-seconds/OTP-10227' into maintFredrik Gustafsson
2012-08-27Merge branch 'tab/fix-sctp-multihoming-IPv6/OTP-10217' into maintFredrik Gustafsson
* tab/fix-sctp-multihoming-IPv6/OTP-10217: Allow mixed IPv4 and IPv6 addresses to sctp_bindx Add checks for in6addr_any and in6addr_loopback Fix SCTP multihoming inet_drv.c: Set sockaddr lengths in inet_set_[f]address
2012-08-24Merge branch 'msp/double_middle_endian/OTP-10209' into maintLukas Larsson
* msp/double_middle_endian/OTP-10209: Configure now assumed normal doubles Revise the autoconf tests for double middle endianness. Add test for floating-point output to float_SUITE. Unbreak floating point on middle-endian machines.
2012-08-16Add checks for in6addr_any and in6addr_loopbackTomas Abrahamsson
These variables are normally declared by <netinet/in.h>, but for instance not on Windows 7, SDK 7.1. Work around that by using IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT if present, fallback to using :: and ::1.
2012-08-01Fix support for leap seconds-aware timezonesPiotr Sikora
erlang:universaltime_to_localtime is leap seconds-aware (since 2008), however erlang:localtime_to_universaltime is not, which gives surprising results on systems configured with leap seconds-aware timezones: 1> erlang:universaltime_to_localtime({{2012,1,1},{0,0,0}}). {{2012,1,1},{0,0,0}} 2> erlang:localtime_to_universaltime({{2012,1,1},{0,0,0}}). {{2012,1,1},{0,0,24}} and completely breaks calendar:local_time_to_universal_time_dst: 3> calendar:local_time_to_universal_time_dst({{2011,1,1},{0,0,0}}). [] Signed-off-by: Piotr Sikora <[email protected]>
2012-06-25Add armv7l and armv5tejl as a recognized ARM architecturesSverker Eriksson