Date: Tue, 17 Jan 2006 16:31:35 -0600 From: Alan Cox <alc@cs.rice.edu> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: alc@freebsd.org, Julian Elischer <julian@elischer.org>, arch@freebsd.org Subject: Re: Large virtual page size support. Message-ID: <20060117223135.GB2360@cs.rice.edu> In-Reply-To: <63333.1137536336@critter.freebsd.dk> References: <43CD612E.2060002@elischer.org> <63333.1137536336@critter.freebsd.dk>
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On Tue, Jan 17, 2006 at 11:18:56PM +0100, Poul-Henning Kamp wrote: > In message <43CD612E.2060002@elischer.org>, Julian Elischer writes: > >Jeff Roberson wrote: > > > >> I have implemented support in the vm for PAGE_SIZE values which are a > >> multiple of the hardware page size. This is primarily useful for two > >> things: > > > >Mach (and the VM system we inherrited from it) had this. I beieve it was > >removed with teh comment > >"If we need this and someone is willing to support it it can be added > >back" . > > It was a VAX artifact and not very usable. I belive we have a couple > of comments and macros which still talk about "clicks". > It was not a VAX artifact. Also, Jeff's work differs significantly from what Mach did on the VAX. I'll explain the differences after my paper deadline passes tomorrow. Alan
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