diff src/os_cpu/linux_x86/vm/globals_linux_x86.hpp @ 642:660978a2a31a

6791178: Specialize for zero as the compressed oop vm heap base Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb. Reviewed-by: never, twisti, jcoomes, coleenp
author kvn
date Thu, 12 Mar 2009 10:37:46 -0700
parents a61af66fc99e
children bd02caa94611
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line diff
--- a/src/os_cpu/linux_x86/vm/globals_linux_x86.hpp	Wed Mar 11 14:16:13 2009 -0700
+++ b/src/os_cpu/linux_x86/vm/globals_linux_x86.hpp	Thu Mar 12 10:37:46 2009 -0700
@@ -43,5 +43,7 @@
 
 define_pd_global(uintx, JVMInvokeMethodSlack,    8192);
 
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress,      2*G);
 // Only used on 64 bit Windows platforms
 define_pd_global(bool, UseVectoredExceptions,    false);