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How find if the computer your javascript/html is running on is slow?

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May 21.2010

I have some animation script that normally works perfectly. but on computers that are slower or low on RAM, it doesn’t work well so I instead want to have it snap the piece in to place instead of sliding it there.

But to do this, i need to be able to determine when a computer wouldn’t be able to display the animation due to slow CPU/GPU or low RAM. Any ideas?

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@FangMay 22.2010 — The browser used can have a huge impact on the speed of animation.

Time the first few iterations of animation and change the method accordingly.
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@nathanpcMay 22.2010 — As [b][color=brown]Fang[/color][/b] said, there isn't any event for that, what you could do is to check if the page have animations and things that will slow it. ?
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@6tr6trauthorMay 22.2010 — Thanks to both for the suggestion. That's the solution I came up with too but I was hoping there was a better way to do it. There's a few issues with that method:

  • 1. There will be some lag by doing that

  • 2. It's possible that even on a good comp/browser, the first few iterations could be slow (maybe they're also running a huge process for a few seconds) and then it'd be fine
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