[webkit-dev] Iterating SunSpider

Geoffrey Garen ggaren at apple.com
Mon Jul 6 10:11:54 PDT 2009

> So, what you end up with is after a couple of years, the slowest  
> test in the suite is the most significant part of the score.   
> Further, I'll predict that the slowest test will most likely be the  
> least relevant test, because the truly important parts of JS engines  
> were already optimized.  This has happened with Sunspider 0.9 - the  
> regex portions of the test became the dominant factor, even though  
> they were not nearly as prominent in the real world as they were in  
> the benchmark.  This leads to implementors optimizing for the  
> benchmark - and that is not what we want to encourage.

How did you determine that regex performance is "not nearly as  
prominent in the real world?"


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