Google’s thirst for speed is unquenchable, it seems: Google Chrome (now on Mac, too) aims to make web browsing faster, while Google Site Performance helps webmasters speed up their websites. Meanwhile, Google’s SPDY is a plan to make the web itself faster.

Now Google is at it again, launching Speed Tracer, a Google Chrome extension that lets developers track the performance of their apps and make them faster. Speed Tracer’s Sluggishness Graph plots events and helps you to pinpoint what’s slowing down your app.

It’s a developer tool rather than one for general web users, but we’ll all benefit: a faster web is a lot more fun to use.

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Google Speed Tracer: Google Helps Developers Speed up their Apps [VIDEO]