The kernel is a lazy, deceitful sack of scum; this is the
fundamental principle of virtual memory. It applies in most
situations, some familiar and some surprising, but the rule is that
VMAs record what has been agreed upon, while PTEs reflect what has
actually been done by the lazy kernel.
describes memory management
-- Evgeniy Polyakov
slight performance advantage
Unless we uncover devastating issues with the transition from ext3
to ext4 as the default file system, Fedora 11 installed systems
will be using ext4.
-- James Laska
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