RE: replacing key() with pipe.
> PS. I encountered *crazy* jumps of the speed on different > boxes and different versions of the VM. On some boxes > SAXON is ( significantly ) faster than XT ( on some 'other > stylesheets' ) because it seems that instant SAXON was > compiled with some tool which works nice with MS VM. > What is the tool? Microsoft's jexegen. I think the Windows version of xt is built using this tool as well, so I doubt this explains any difference. Certainly virtual memory behaviour can cause surprises, there can also be surprises where one processor happens to optimise some XPath construct and another processor doesn't. The only case I found where Saxon runs substantially (i.e. five times) faster than xt is a stylesheet (my knight's tour) that makes significant use of format-number(): and then only with the Microsoft Java VM, because it turns out xt uses an underlying Java class that is much less efficient in Microsoft Java than in Sun Java. Mike Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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