Performance

Well let’s just say that Froyo is really fast, at least on paper. The new JIT compiler for the Dalvik VM is about 2-5x faster than the one used in Éclair (v2.1) and CPU intensive code is executed much more efficiently. Memory management has also been improved and multitasking seems snappier. Basically, Froyo will not make your device run obscenely faster than before, but it will speed things up to the point where you’ll definitely notice a difference. That being said, Froyo still lacks the overall smoothness and responsiveness of Apple's iOS. It still suffers from sporadic stuttering and choppy scrolling. Animations are generally smooth, but are still prone to occasional slowdowns (something that Apple has actually introduced with iOS4). The issue is acutely exacerbated while using Live Wallpapers; that’s when phone feels really sluggish.

Froyo Performance Tests
Android Revision Linpack (MFLOPS) BenchmarkPi (ms - lower is better) SunSpider (ms - lower is better)
Nexus One (Android 2.2) 36.864 1165 5702
Nexus One (Android 2.1) 6.994 2820 14564

In terms of raw numbers, Froyo’s performance is hard to beat. The numbers speak for themselves; the Linpack benchmark shows a whopping 427% improvement from v2.1, while the BenchmarkPi and Sunspider tests post approximately a 140 - 150% boost in performance. Looks like the JIT compiler packs some serious under-the-hood optimizations. However, under normal usage scenarios, the performance delta isn’t as noticeable as the numbers lead us to believe. While things are quite snappy overall, don’t expect your phone to boot in 10 seconds.

Flash 10.1, Tethering & Hotspot Support Final Words
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  • SmCaudata - Friday, June 25, 2010 - link

    "...Froyo still lacks the overall smoothness and responsiveness of Apple's iOS. "

    I have an iPod touch and the thing lags and such all the time. They try to use animations to make it seem smooth, but it certainly isn't perfect. Granted it is an original touch, but from day one the thing would lag on me. I get delays adjusting settings. Delays launching the music player, etc... It is tolerable, but certainly not perfect.

    Why does Apple always get a free pass?
    Reply
  • ChronoReverse - Saturday, June 26, 2010 - link

    Apple always gets a free pass it seems =/

    At least you can fix many of these niggling factors. I'm using LauncherPro for instance so I don't get lag in the home screens for instance. Live wallpapers will obviously slow things down but they're also optional. Instead of the stock keyboard, I'm using the Swype beta and it works wonderfully (after an initial bout of training).

    Then there's other neat stuff like Navigation and Voice Searching that works rather well.
    Reply
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    How could you say 2.2 isn't groundbreaking?

    1. Flash implementation, full web browsing capabilities on any website now.

    2. JIT compiler, making the processor 250% faster and more efficient.

    How are these not groundbreaking?
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