• From: Michael Kay <mike@s...>
• To: "Costello, Roger L." <costello@m...>
• Date: Thu, 15 Oct 2015 15:03:48 +0100

Are you asking us to do the measurements for you, or are you asking us to guess?

Michael Kay
Saxonica

> On 15 Oct 2015, at 14:43, Costello, Roger L. <costello@m...> wrote:
> 
> Hi Folks,
> 
> Is the following true or false? 
> 
> 	XML developers who fail to grasp the distinction between reading and evaluating 
> 	an XML instance document may have a good model of the structure of XML, 
> 	but they usually have a terrible model of the efficiency of processing XML. One 
> 	XML developer used only one-letter element names, because he felt that it would 
> 	be faster for the computer to look up one-letter elements than a multi-letter name. 
> 	While it may be true that shorter names can save a microsecond at read time, this 
> 	makes no difference at all at evaluation time. Every element, regardless of its name, 
> 	is just a memory location, and the time to access the location does not depend on the 
> 	name of the element.
> 
> /Roger
> 
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• References:
  • Do long element names impact performance?
    • From: "Costello, Roger L." <costello@m...>