[antlr-interest] Performance problem with $text in ANTLR 3.1

[Jim Idle]

Move to 3.4. String template is much faster. However I am not sure about your view of the performance traits; but go to 3.4 and then you will be in a space to start analysis properly. At 3.1 no one can really help. 

Jim

On Aug 21, 2012, at 6:26 PM, Richard Knox <rich at dreambox.com> wrote:

> I recently upgraded an ANTLR based application from ANTLR 3.0.1 to ANTLR 3.1. Since doing this, our application has been running MUCH slower. I did some profiling with VisualVM and found that we were spending most of our time in TokenRewriteStream.getKindOfOps. We get there when we reference $text from a grammar with options output=template and rewrite=true. Are there known performance issues with this scenario in ANTRL 3.1? Would I get better perf with a later version? Any suggested work arounds? Thanks!
> 
> -rich
> 
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