Chrome is impressively bad at requestAnimationFrame callbacks. They randomly drop below 60hz, but if window isn't focused, *exceed* 60hz
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https://bugs.chromium.org/p/chromium/issues/detail?id=641217 … bug filed for css animation issue, repro found
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can I count on y'all to inspect the trace & file a bug for it? I don't understand it
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https://dl.dropboxusercontent.com/u/1643240/granblue-tiamat-hl-lag.trace.json.gz … i don't know how to read traces; here you go.
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basically when the dom is in certain configurations, 15hz. The rest, 60
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It looks like the renderer is blocked on gpu process every frame, prob in .drawImage...
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and the gpu process appears to be decoding/uploading textures every frame?
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