Okay, why does `swapoff` exist on Linux? It's completely useless as far as I can tell. It's been running for 24h to swap in like 1.5GB of used swap or so, on a largely idle server with >32GB free RAM. How can it be *this* hilariously inefficient?
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Disk stats say it's *writing* 6MB/s of stuff, at 1400 IOPS or so (plausible for spinning rust on battery backed RAID card), 80% I/O usage, paging "out" 1400 pages per second. What? Why is it paging stuff *out* with >32GB of RAM free?
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probably a silly question but would rebooting fix this?
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