[webkit-dev] relative JS speed between Safari/Firefox

John Sullivan sullivan at apple.com
Fri May 26 15:06:37 PDT 2006

I think Maciej's earlier message about this topic did an excellent job  
of explaining the different issues here. I just wanted to add that as  
far as I can tell, the howtocreate link below seems to show that  
Safari 2.0 is faster than Firefox in every listed category other than  
"Multiple images", in which Firefox 1.5 is a little faster than Safari  
2.0. For "Script speed" it gives:

Firefox 1.0 (krmathis)	53	
Firefox 1.0			72
Firefox 1.5			40
Safari 2.0			27

where lower numbers are faster.

So I'm not sure why you claim that this page shows Firefox as  
significantly faster on scripts than Safari.


On May 26, 2006, at 3:08 PM, Mike Emmel wrote:

> Finally found some benchmarks form what I can tell Firefox is
> significantly faster on scripts
> then Safari
> http://www.howtocreate.co.uk/browserSpeed.html#testresults
> It does look like the khtml engine itself is quite fast so the
> combination of SpiderMonkey with
> WebCore should make a very fast browser.
> Again please prove that KJS is faster then SpiderMonkey everything I
> finds shows not only is this not true but it is significantly slower.
> I see no reason that the proposal to integrate SpiderMonkey slim it
> down and do a little performance tunning is not valid and resonable
> approach. I see no reason to start from scratch on a new interpeter.
> Finally I think this benchmark should be run agianst webkit/IE/Firefox
> and the results should be on the website it would be helpful. It took
> me a while to find a page with a reasonable set of results.
> Mike

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