X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FCapability.h;h=dc0a28ea57b8f8c622019ddadb0902d6d3b2dbba;hb=4af25e1a72f2d0f1f523fe5b13c71f1b3dc7a5a5;hp=89b813f6d3f725e77bc7dabfc30886ae17cdd486;hpb=17a596022d01987d5ffe7db0742aa8db267b8cc3;p=ghc-hetmet.git

diff --git a/rts/Capability.h b/rts/Capability.h
index 89b813f..dc0a28e 100644
--- a/rts/Capability.h
+++ b/rts/Capability.h
@@ -106,8 +106,10 @@ struct Capability_ {
     StgTRecChunk *free_trec_chunks;
     StgTRecHeader *free_trec_headers;
     nat transaction_tokens;
-
-}; // typedef Capability, defined in RtsAPI.h
+} // typedef Capability is defined in RtsAPI.h
+  // Capabilities are stored in an array, so make sure that adjacent
+  // Capabilities don't share any cache-lines:
+  ATTRIBUTE_ALIGNED(64);
 
 
 #if defined(THREADED_RTS)