this post was submitted on 06 Sep 2023
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For this you have to know that what gets swapped to disk is not the static content that you'd load upon opening a website, it's the entire memory used by the tab.
Static web content is usually kilobytes to megabytes and is also largely cached (on disk even). A tab's memory usage OTOH ranges from dozens to hundreds of MB.
Even a fast drive needs quite a long time (in computer terms) to load something like that, especially given that the access is likely not sequential and has a low queue depth.