Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Firefox/102.0 ID:20220515214519 When I'm watching some videos on AirMozilla and using the PiP (picture in picture) mode, I can see a huge CPU load (50% main process) for the Panopto tab. As given by Smaug and Florian this happens because we tread the tab as forground tab. But when I close the PiP player window the CPU load stays high for some minutes before dropping to normal values again. Here a recorded profile when I closed the PiP window and left the profiler running some more seconds: https://share.firefox.dev/39QRa59 As told by Florian the priority of the tab is actually set to background so it's not clear why we are rendering still with 120Hz.
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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Firefox/102.0 ID:20220515214519 When I'm watching some videos on AirMozilla and using the PiP (picture in picture) mode, I can see a huge CPU load (50% main process) for the Panopto tab. As given by Smaug and Florian this happens because we treat the tab as forground tab. But when I close the PiP player window the CPU load stays high for some minutes before dropping to normal values again. Here a recorded profile when I closed the PiP window and left the profiler running some more seconds: https://share.firefox.dev/39QRa59 As told by Florian the priority of the tab is actually set to background so it's not clear why we are rendering still with 120Hz.