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Since NetBeans 7.2 provides 64-bit launcher for Windows (http://hg.netbeans.org/main-golden/rev/34fef02e9b05) we can balance -XX:MaxPermSize according to what version JVM is running. Proposal: Windows 32-bit - _no change_ -Xmx is RAM/5, min 96m, max 384m -XX:MaxPermSize is 256m Windows 64-bit - 64-bit JVM _no change_ -Xmx is RAM/5, min 96m, max 768m -XX:MaxPermSize is 384m Windows 64-bit - 32-bit JVM _decreased_ -Xmx is RAM/5, min 96m, max 384m (previously max 768m) -XX:MaxPermSize is 256m (previously 384m) On Linux - _no change_: -Xmx is RAM/5, min 96m, max 768m -XX:MaxPermSize is 384m
core-main/rev/f2a876b031d7
Integrated into 'main-golden', will be available in build *201203240400* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-golden/rev/f2a876b031d7 User: Jiri Rechtacek <jrechtacek@netbeans.org> Log: #209729: Decrease MaxPermSize on Win running on 32-bit JVM