<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div>Hi Dan Did you try the differential test that you did before? Or did Bert do it? i.e. Squeak vs JS-in-browser on a Mac vs the same on the iPad I seem to recall that the differential was a factor of 12 slower on the iPad. I visited Apple after this and complained to Bud Tribble. Should I guess that the differential is now "only" a factor of 4? Cheers, Alan </div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><hr size="1">From: Dan Ingalls <danhhingalls@gmail.com> To: lively-kernel@hpi.uni-potsdam.de Sent: Fri, March 11, 2011 3:45:14 PM Subject: Re: [lively-kernel] Nitro? It's really true. I ran my tiny benchmarks (<a target="_blank" href="http://weather-dimensions.com/Dan/JavaScriptBenchmark.html">http://weather-dimensions.com/Dan/JavaScriptBenchmark.html</a>) before and after upgrading my iPad's OS.  The results... Before:    30M ops/sec    1M sends/sec After:    150M ops/sec    4M sends/sec I found some erratic behavior running normal Lively pages -- we'll be tracking that down in the next couple of weeks. I haven't had a chance to try a new iPad, but the extra processor should make a difference as well. Think Live Web     - Dan >On Mar 3, 2011, at 3:00 PM, Casey Ransberger wrote: > >> It would seem Safari is getting a new JS engine. Apple is touting "up to twice" the performance in Safari; that's almost certainly not coming out of a macro benchmark, though, so I strongly doubt that anyone with an app will see that much of a boost. >> >> All the same, faster JS might be good for Lively on iOS, where perf is currently more pain than I can tolerate for more than a few minutes at a time. >> >> This is supposed to be coming with iOS 4.3. >> _______________________________________________ >> lively-kernel mailing list >> <a ymailto="mailto:lively-kernel@hpi.uni-potsdam.de" href="mailto:lively-kernel@hpi.uni-potsdam.de">lively-kernel@hpi.uni-potsdam.de</a> >> <a target="_blank" href="http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel">http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel</a> > >_______________________________________________ >lively-kernel mailing list ><a ymailto="mailto:lively-kernel@hpi.uni-potsdam.de" href="mailto:lively-kernel@hpi.uni-potsdam.de">lively-kernel@hpi.uni-potsdam.de</a> ><a href="http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel" target="_blank">http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel</a> _______________________________________________ lively-kernel mailing list <a ymailto="mailto:lively-kernel@hpi.uni-potsdam.de" href="mailto:lively-kernel@hpi.uni-potsdam.de">lively-kernel@hpi.uni-potsdam.de</a> <a href="http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel" target="_blank">http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel</a> </div></div> </div> </body></html>