diff options
| author | Adrian Chadd <adrian@FreeBSD.org> | 2015-04-27 04:08:01 +0000 |
|---|---|---|
| committer | Adrian Chadd <adrian@FreeBSD.org> | 2015-04-27 04:08:01 +0000 |
| commit | b359a55a8261b43bd6011b73f6785a708ec20137 (patch) | |
| tree | 5d424d635c28623c343d98368803b8ffed5097bd /lang/gcc/files/patch-libgomp-posix-affinity | |
| parent | Upgrae to 4.0. (diff) | |
Implement the FreeBSD specific pieces for thread affinity for OpenMP.
Upstream gcc 4.8 doesn't have support for this - it'll create threads,
but it won't do any of the thread affinity stuff for FreeBSD.
This allows for OMP_PROC_BIND=true to bind threads to their initial
CPUs, leading to some pretty drastic improvements in performance
for certain NUMA workloads.
Approved by: gerald
Notes
Notes:
svn path=/head/; revision=384814
Diffstat (limited to 'lang/gcc/files/patch-libgomp-posix-affinity')
| -rw-r--r-- | lang/gcc/files/patch-libgomp-posix-affinity | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lang/gcc/files/patch-libgomp-posix-affinity b/lang/gcc/files/patch-libgomp-posix-affinity new file mode 100644 index 000000000000..c4ab742f061b --- /dev/null +++ b/lang/gcc/files/patch-libgomp-posix-affinity @@ -0,0 +1,18 @@ +--- libgomp/config/posix/affinity.c.orig 2015-04-26 05:29:27.925344000 -0700 ++++ libgomp/config/posix/affinity.c 2015-04-26 05:29:44.449277000 -0700 +@@ -26,6 +26,10 @@ + + #include "libgomp.h" + ++#ifdef __FreeBSD__ ++#include "../bsd/freebsd_affinity.c" ++#else ++ + void + gomp_init_affinity (void) + { +@@ -36,3 +40,4 @@ + { + (void) attr; + } ++#endif |