It looks like it's just the indicator/fps metric that's busted. Everything still feels buttery smooth but basically any interaction trips the indicator (async scrolling on bugzilla, moving the mouse over a button, etc). Attached: screenshot of the profiler from about a minute of just moving my mouse around about:config. The individual metrics seem to clearly suggest everything is running buttery smooth, but the actual FPS and frame indicator disagree.
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It looks like it's just the indicator/fps metric that's busted. Everything still feels buttery smooth but basically any interaction trips the indicator (async scrolling on bugzilla, moving the mouse over a button, etc). Attached: screenshot of the profiler from about a minute of just moving my mouse around about:config. The individual metrics seem to clearly suggest everything is running buttery smooth, but the actual FPS and frame indicator disagree. edit: whoops forgot to enable the GPU metrics -- they show about 5ms GPU time on average, so still fine.