Re: [xsl] XSL: For-Each Efficient or Not?

[Oleg Tkachenko <olegt@xxxxxxxxxxxxx>]

Schrooten, Ben wrote:
> We have been trying to determine whether using XSL:For-Each is having an
> impact on the speed of our document publishing. Some of my buddies don't
> want to use xsl:for-each because they believe it causes the process to take
> a longer amount of time than just doing a template match over and over. Is
> this true or no? Is xsl:for-each a performance hog or does it and template
> matching take the same amount of time?

I believe that's quite opposite - for-each is only about to evaluate 
expression and instantiate instructions within for each selected node, but 
using apply-templates it's also nessesary to match appropriate template, 
probably to up new stack frame etc. That's usually not much overhead, but it 
does exist and depends on the processor implementation.
Anyway that's not a reason to lose templates' virtues. Take a look at the list 
archive - there was a big discussion for-each vs templates this year.

--
Oleg Tkachenko
Multiconn International Ltd, Israel


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