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changeset

6673975: Disable ZapUnusedHeapArea to reduce GC execution times of debug JVM's.

Tue, 11 Mar 2008 14:19:53 -0700

author
jmasa
date
Tue, 11 Mar 2008 14:19:53 -0700
changeset 450
d825a8a2bd39
parent 449
6228104986ca
child 481
8b6e49187640
child 529
0834225a7916

6673975: Disable ZapUnusedHeapArea to reduce GC execution times of debug JVM's.
Summary: Mangling the unused space is having an adverse affect on testing with fastdebug builds so turn it off by default.
Reviewed-by: ysr, tonyp

src/share/vm/runtime/globals.hpp file | annotate | diff | comparison | revisions 
     1.1 --- a/src/share/vm/runtime/globals.hpp	Wed Mar 05 17:37:04 2008 -0800
     1.2 +++ b/src/share/vm/runtime/globals.hpp	Tue Mar 11 14:19:53 2008 -0700
     1.3 @@ -586,7 +586,7 @@
     1.4    develop(bool, ZapJNIHandleArea, trueInDebug,                              \
     1.5            "Zap freed JNI handle space with 0xFEFEFEFE")                     \
     1.6                                                                              \
     1.7 -  develop(bool, ZapUnusedHeapArea, trueInDebug,                             \
     1.8 +  develop(bool, ZapUnusedHeapArea, false,                                   \
     1.9            "Zap unused heap space with 0xBAADBABE")                          \
    1.10                                                                              \
    1.11    develop(bool, PrintVMMessages, true,                                      \

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