Simon Willison’s Weblog

23rd September 2009 - Link Blog

Gmail for Mobile: Reducing Startup Latency. Cheeky iPhone optimisation trick—parsing 200 KB of JavaScript takes an iPhone 2.2 device 2.6 seconds, so Gmail embeds code components in /* comments */ in a script tag and evals them on demand later on when the features are needed.

Posted 23rd September 2009 at 10:29 pm

Recent articles

Porting the Moebius 0.2B image inpainting model to run in the browser with Claude Code - 22nd June 2026
sqlite-utils 4.0rc1 adds migrations and nested transactions - 21st June 2026
Datasette Apps: Host custom HTML applications inside Datasette - 18th June 2026

This is a link post by Simon Willison, posted on 23rd September 2009.

google 413 iphone 63 javascript 759 optimisation 6 performance 95

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