Tab management becomes unresponsive after many hours of having a large number of tabs open.
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After many hours of having a large number of tabs open, some of them YouTube videos, Facebook, or other high demand sites, Vivaldi's tab interface stops allowing the creation of new tabs or the selection of tabs that haven been selected in a while. Only recently used tabs will continue to work, and new tabs can be created or closed but it will take a very, very long time, on the order of minutes. This is a new phenomenon over the past two months. Before 2022 I regularly used enormous amounts of ram running large numbers of tabs without a problem. Vivaldi's open processes will also grow to be many, like 8-12, and remain that many after closing every single tab, and I don't know if that's related, but it seems odd with only one tab.
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@keyosuke Open processes includes extensions.
I noticed severe lags with recent builds when watching YouTube videos on one monitor. Going back in history, or sorting a channel's videos can take a minute or so.
I suspect that blocked ads may have to play (though not visible) before the UI becomes responsive again.
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If it was only YouTube and not Microsoft Teams, Microsoft Outlook, Facebook, Google search, etc all also freezing up in their tabs and new tabs being impossible to create, I'd have looked more toward YouTube. If you think it will help, I'll use no YouTube in this browser for a few days to see if it still happens. I'm also happy to do any kind of dumps or logging that might help. I think the users that uses many gigs of ram leaving scores of tabs open is a good canary in the coal mine for when a browser has a new problem that just hasn't impacted typical users, yet. But it will.
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I had this only with low resources/memory on Linux.
@Keyosuke Perhaps your Windows runs into low resources, too?
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I thought that was it, since I had 31 of 32 gb of ram being used, so I upgraded to 64 gb just for this occasion, and the issue persisted. I was using my CPU near 100% most of the time, but the issue is a new experience for me, and I think if it's dropping below 100% periodically, the browser should have all the CPU time it needs to catch up, like every other app.
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I will also mention that I hated to do so, but I started using other Chrome based browsers, like Edge, side by side with Vivaldi, so that business critical tabs wouldn't be frozen during business hours, and if Edge can handle my current resource usage but 2022 Vivaldi cannot, that ruled out resource usage as the only cause, to me. Still, I'm happy to help track it down if that is a component of cause.
