How does the Windows operating system prioritize which pages to keep in memory versus paging them out to disk?

[ProfRon]

Windows keeps tabs on everything you're running. It watches which bits of your programs get poked at most. I mean, the stuff you just used stays cozy in RAM. That's the fast memory spot. Anything idle for a bit gets nudged out to the disk. You see, it favors the fresh ones first.

Think about it like this. Your browser tabs that you flip through often? They hang tight in memory. But that old game you quit hours ago? It slinks off to the page file. Windows uses a sneaky clock to track recency. Least touched pages wave goodbye quickest.

I bet you've noticed slowdowns when RAM fills up. That's Windows shuffling things around. It prioritizes active apps to keep you smooth. Background junk gets the boot to disk. You can tweak it a tad in settings if you want.

It even peeks at page faults. Those happen when you grab something paged out. Windows learns from that mess. It pulls back popular pages pronto. Keeps your flow going without hiccups.

Ever wonder why some crashes tie to low memory? It's this juggling act gone wrong. Windows tries hard to balance it. But heavy multitasking pushes the limits. You end up with more disk thrashing.

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