Date: Thu, 19 Feb 2009 12:28:39 -0800 From: Julian Elischer <julian@elischer.org> To: FreeBSD virtualization mailing list <freebsd-virtualization@freebsd.org>, Marko Zec <zec@FreeBSD.org>, "Bjoern A. Zeeb" <bz@FreeBSD.org> Subject: Vimage next step Message-ID: <499DC0F7.10709@elischer.org>
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I've been doing performance testing on the 'non-vimage' 'structified' case VS the original 'globals' case and have not been able to see any really significant differences (though I have seen very slight differences in the distribution of results). SO I think we are in the position of moving forward to the next steps. I think that just means checking in the rest of the vimage tree from what I have seen. Then we can play with it a bit and then proceed to the jail/vimage merge stuff that Jamie (and bz) are working on. One thing I'd like to do is make the following changes: 1/ evaluate the ordering of teh items in the vimage structures to see if there are items that should be clusterred for cache reasons. 2/ remove all sub structures from the vimage structures and replace them with pointers. This is because puting them in directly in the vimage structures will make our lives harder due to ABI issues. If they are independently allocated (*) then we don't need to worry about them changing in size. (*) actually they could still be allocated as a blob but we would access them as if they are separate. comments? Julian
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