[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: SAX2: Namespace proposal
David Megginson wrote: > > Miles Sabin <msabin@c...> writes: > > > > If I were doing it over, though, I would actually call > > > java.lang.String.intern once for each of the strings in the > > > intern table so that they were == to the regular intern'ed > > > versions. > > > > Try it, but I think you'll be more likely to lose than gain. Having done this, I'll disagree. The cost wasn't observable. Except ... that processing some documents blew up a fixed-size table in at least one incarnation of the JDK 1.1.x JVM. I saw that in a pathological stress test case (which generated random documents), never once "in the wild", but it does provide yet another reason to use a better JVM (like JDK 1.2.x) on servers and in other cases where you expect the JVM to live a long time. > I'd appreciate more information here -- if I call > java.lang.String.intern the first time I add a string to the intern > table, then the cost is proportional to the number of entries in the > table, not the number of accesses. Right. The man cost being mapping from a portion of a buffer to the String ... a "local" intern. Going one step beyond that to a "global" intern (using the JVM) is cheap, since it's hardly ever done. - Dave xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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