Subject: RE: [xsl] Normalize / Simplify HTML-Tables with row-span / col-span From: "Michael Kay" <mhk@xxxxxxxxx> Date: Tue, 17 Feb 2004 19:17:56 -0000 |
> > I know from experience that switching tree model in Saxon 6 > changes performance pattern. Instead of (or additionally to) > having two tree structures, it would make sense to use > different tree structures for node-sets and RTFs. > I think these optimizations can be achieved without imposing restrictions on the user. Saxon 7.8 already does better than 6 in this area (though this is masked by slower performance elsewhere). I think a lot of the reason that xt is so fast is because it's very slick at building trees. Many more improvements are possible given the time and effort. Incidentally, final result trees and RTFs are quite different. Final result trees never actually exist in memory, nodes are serialized as they are constructed. Michael Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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