I noticed this passage too, but ...

Quoting from http://www.daemonnews.org/200001/freebsd_vm.html :

When To Free a Page*

Since the VM system uses all available memory for disk caching, there


The VM system, as you can see from the article, is focused on paging and
caching the programs and program data. Is the cache for disk reads and
writes thrown into the mix as well?

Yes - that is the real question. The following link :


and the few "next" pages afterward talk about a unified buffer cache i.e file buffer cache is part of the KVM system which is part of the VM system - but this does not seem to preclude those vfs.*buf* variables limiting the size of the file buffer cache... hmm ... so no real decrease of confusion at this end.. :-)


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