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Saturday, February 14, 2009

Bench marking vexi javascript

Out of curiosity I decided to benchmark the javascript in vexi. The first benchmark i found was on a blog called celtickane.com. I am not entirely convinced by the methodology or the naming of the tests (error handling did not seem to have handling exceptions as its bottleneck), but it will do as a first effort.

Below are the results for the benchmarks that I could run substantially unchanged in Vexi. All values are time in ms. Everything was run on my fairly old T30 thinkpad.

Vexi 3 build 3385 Firefox 3.06 IE 7.0.5730.13
Array object 210 25 80
Error handling 401 55 181
Math object 120 49 230
String object 560 221 160
Regex object 521 65 711

Remarks

The string object benchmark is essentially testing the performance of the replace method. The reason it might be running slowly in Vexi is that it always is interpreted as a regular expression, but this does not appear to be the case in the browsers. Perhaps this is something that should be corrected.

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