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by lelanthran 1001 days ago
I'm pretty certain that everything doesn't use the NTFS journal[1].

My understanding is that everything uses the file open hooks provided for antivirus to maintain the index, which is why it appears instant.

Adding a millisecond to each open call is imperceptible to the user, and it takes less time than that if you return immediately and process the index update in the background.

[1] happy to be proven wrong.