>>>> I'm using ANTLR with the C# target. The generated parser performs too >>>> slow for my needs. My grammar uses k = 6. >>>> >>>> Does it have a performance impact? What value should I target to get >>>> optimum performance - 1 or *? Would changing the grammar to 1/* give >>>> significant performance boost? >>>> >>> Could you try it yourself? >>> I mean test it. I would be interested in your results too.. >>> >> >> It would probably take a good amount of time to change the grammar and >> the actions. I can't invest my time in that. Even more, since I found >> that the real performance bottleneck is in my case the use of rewrite >> rules, TokenRewriteStream and StringTemplate. I got about 100x >> performance boost after disabling the rewriting (leaving my actions in >> place). I guess I'll have to do the outputting myself. This will be a >> costly task (both implementation and performance-wise), but I suspect >> (and truly hope) to get something like 50x performance improvement from >> the original solution. >> >What kind of speed is slow for you? How big are the files that you analyse?
For my needs, 10 seconds is definitely too much for a 25KB input. I'm shooting for up to 0.5sec. Stefan List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
