Wednesday, February 04, 2009

IPhone SDK 2.2.1 with 2x faster Javascript

I was surprised when I finished deploying my application in an Ad Hoc IPod Touch device after seeing it was running faster than in my develoment IPhone.

The application makes heavy use of the WebKit and I was experiencing 5-6 seconds delay between heavy Views (6K JSON data) when deployed to the IPhone but it went down to 3-4 when I deployed into the IPod Touch. Considering sqlite takes around 2 seconds in either case we are definitely getting a 2x Javascript performance increase (faster JavaScript execution).

The reason for the boost? A new 2.2.1 version in the Ipod Touch (I have 2.2 in the Iphone).

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