Usually it's access time/atime that gets disabled, not mtime. Access might be read-only, so updating atime introduces write i/o to the FS. Modifications are by definition write i/o, so it's cost effective to update mtime also.

--Dave

In reply to Re^2: Re-Creating a file does not change inode modification time (Windows) by armstd
in thread Re-Creating a file does not change inode modification time (Windows) by rovf

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