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diff src/share/vm/gc_implementation/shared/parGCAllocBuffer.hpp @ 20756:060cdf93040c jdk8u31-b04

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8055479: TLAB stability Reviewed-by: brutisso, stefank, ahgross
author mgerdin
date Thu, 09 Oct 2014 15:42:23 +0200
parents cfd4aac53239
children c2844108a708
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line diff
--- a/src/share/vm/gc_implementation/shared/parGCAllocBuffer.hpp	Fri Sep 26 17:48:10 2014 -0400
+++ b/src/share/vm/gc_implementation/shared/parGCAllocBuffer.hpp	Thu Oct 09 15:42:23 2014 +0200
@@ -62,7 +62,8 @@
   ParGCAllocBuffer(size_t word_sz);
 
   static const size_t min_size() {
-    return ThreadLocalAllocBuffer::min_size();
+    // Make sure that we return something that is larger than AlignmentReserve
+    return align_object_size(MAX2(MinTLABSize / HeapWordSize, (uintx)oopDesc::header_size())) + AlignmentReserve;
   }
 
   static const size_t max_size() {