ANTLR performs slower on AIX when compared to Linux
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Posted By:   Yousuff_Malik
Posted On:   Tuesday, May 17, 2011 02:32 PM

I am working with antlr-3.1.1. We are using ANTLR in a message conversion tool. After running several tests we have noticed that ANTLR performs consistently slower on AIX when compared to Linux. We analyzed our results using JRAT

The particular class that performs 8 times slower on AIX is CommonTreeNodeStream.java and the method is getNodeIndex( obj ). Can you please let me know if you have seen this behavior before

We are running on JDK1.6 (sr9) 64 bit JVM on AIX and also the same JDK 1.6 64 bit on Linux

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