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| author | Bryan Drewery <bryan@shatow.net> | 2018-02-27 14:12:52 -0800 |
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| committer | Bryan Drewery <bryan@shatow.net> | 2018-02-28 15:36:32 -0800 |
| commit | 85b82f254e28f5e50b25d8e096af0f01e4441ef7 (patch) | |
| tree | 678c934bdccd363b7d3ed889d9ec4b42cb7e0396 /src/rustllvm/RustWrapper.cpp | |
| parent | b3ecf5f57ca9d34d10ffd9d064a027ce3f4888ac (diff) | |
| download | rust-85b82f254e28f5e50b25d8e096af0f01e4441ef7.tar.gz rust-85b82f254e28f5e50b25d8e096af0f01e4441ef7.zip | |
Support posix_spawn() for FreeBSD.
spawn() is expected to return an error if the specified file could not be executed. FreeBSD's posix_spawn() supports returning ENOENT/ENOEXEC if the exec() fails, which not all platforms support. This brings a very significant performance improvement for FreeBSD, involving heavy use of Command in threads, due to fork() invoking jemalloc fork handlers and causing lock contention. FreeBSD's posix_spawn() avoids this problem due to using vfork() internally.
Diffstat (limited to 'src/rustllvm/RustWrapper.cpp')
0 files changed, 0 insertions, 0 deletions