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A comment on Files UWP: An enthusiast’s take on what Windows File Explorer explorer should be. Parent comment

Re:Files UWP: An enthusiast’s take on what Windows File Expl... by gregmac on Saturday June 08, 2019 @02:51PM (#20134284)
You still have to read the stored size on each parent to figure this out, at which point the optimization makes sense only if writes are significantly (at least 2x) more expensive than reads, and this is not true for most desktop PCs.

This really boils down to a caching problem, and well, there's a reason it's one of the two hard computer science problems..

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Re:Files UWP: An enthusiast’s take on what Windows File Expl... by hexomancer on Sunday June 09, 2019 @12:56AM (#20137206)
Nope. We only have to read the parent of the last changed folder. Plus, any filesystem worth its salts already caches the frequently used parts.
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