commit | 0ee4a142c7f9498c0adccca022d57b760c37bc71 | [log] [tgz] |
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author | David Grove <groved@us.ibm.com> | Wed Jul 26 14:27:37 2017 -0400 |
committer | David Grove <groved@us.ibm.com> | Thu Jul 27 10:23:22 2017 -0400 |
tree | 1a0a86cccde99223e041b772a643b7596f4e2bb4 | |
parent | 698d085262d11ee3ab3dbaaa66b76a9c1a36f0d7 [diff] |
CMake: carry over some nuances from autotools test config Port more capabilities from Makefile.am: 1. test-specific compilation flags 2. support for lenient deadlines when running in the Swift CI 3. extended test suite (tests we disable because they occasionally fail) 4. list of not ported tests (Darwin-only functionality)
Grand Central Dispatch (GCD or libdispatch) provides comprehensive support for concurrent code execution on multicore hardware.
libdispatch is currently available on all Darwin platforms. This project aims to make a modern version of libdispatch available on all other Swift platforms. To do this, we will implement as much of the portable subset of the API as possible, using the existing open source C implementation.
libdispatch on Darwin is a combination of logic in the xnu
kernel alongside the user-space Library. The kernel has the most information available to balance workload across the entire system. As a first step, however, we believe it is useful to bring up the basic functionality of the library using user-space pthread primitives on Linux. Eventually, a Linux kernel module could be developed to support more informed thread scheduling.
A port of libdispatch to Linux has been completed. On Linux, since Swift 3, swift-corelibs-libdispatch has been included in all Swift releases and is used by other swift-corelibs projects.
Opportunities to contribute and on-going work include:
For detailed instructions on building and installing libdispatch, see INSTALL.md
For detailed instructions on testing libdispatch, see TESTING.md