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author | Dimitry Andric <dim@FreeBSD.org> | 2020-12-03 19:26:21 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2020-12-03 19:26:21 +0000 |
commit | 5cc6cb2645b79b6108922957984dd86077cd7f06 (patch) | |
tree | 67673a001da0d1df60b4ac4741e3fd91eb6c46db /contrib/llvm-project | |
parent | b957b185946ed5ad96436b50bb118db8c1a24ded (diff) | |
download | src-test-5cc6cb2645b79b6108922957984dd86077cd7f06.tar.gz src-test-5cc6cb2645b79b6108922957984dd86077cd7f06.zip |
Revert r367815, so we can apply the slightly different version that
landed upstream:
For llvm's internal function which retrieves the number of available
"hardware threads", use cpuset_getaffinity(2) on FreeBSD, so it will
honor processor sets configured by the cpuset(1) command.
This should make it possible to avoid e.g. lld creating a huge number of
threads on a machine with many cores, even for linking simple programs.
This will also be submitted upstream.
Submitted by: mjg
Notes
Notes:
svn path=/head/; revision=368308
Diffstat (limited to 'contrib/llvm-project')
-rw-r--r-- | contrib/llvm-project/llvm/lib/Support/Unix/Threading.inc | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/contrib/llvm-project/llvm/lib/Support/Unix/Threading.inc b/contrib/llvm-project/llvm/lib/Support/Unix/Threading.inc index df290d2262eae..2d0aacabf0920 100644 --- a/contrib/llvm-project/llvm/lib/Support/Unix/Threading.inc +++ b/contrib/llvm-project/llvm/lib/Support/Unix/Threading.inc @@ -26,10 +26,6 @@ #include <pthread_np.h> // For pthread_getthreadid_np() / pthread_set_name_np() #endif -#if defined(__FreeBSD__) -#include <sys/cpuset.h> -#endif - #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) #include <errno.h> #include <sys/sysctl.h> @@ -286,13 +282,6 @@ SetThreadPriorityResult llvm::set_thread_priority(ThreadPriority Priority) { #include <thread> int computeHostNumHardwareThreads() { -#ifdef __FreeBSD__ - cpuset_t mask; - CPU_ZERO(&mask); - if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask), - &mask) == 0) - return CPU_COUNT(&mask); -#endif #ifdef __linux__ cpu_set_t Set; if (sched_getaffinity(0, sizeof(Set), &Set) == 0) |