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Re: String interning (WAS: SAX2/Java: Towards a final form)

  • From: David Brownell <david-b@p...>
  • To: Miles Sabin <msabin@c...>
  • Date: Wed, 12 Jan 2000 12:35:53 -0800

Re: String interning (WAS: SAX2/Java: Towards a final form)
Miles Sabin wrote:
> > > [snip: table mapping to intern'd Strings]
> > > Even tho' this only requires one java-intern for each
> > > distinct name it still provides plenty of opportunities for
> > > synchronization collisions.

So Miles, if you prefer the occasional synchronization issue
to the routine method invocation overhead, use a parser that
obliges you.  (Yes, I'm assuming SAX2 doesn't mandate any
interning, just exposes whether or not it's done.)

Though I daresay you'll find that the synchronization isn't
usually measurable, while your evidently preferred alternative
(lots of String.equals calls) will consistently show up as a
performance problem.  At least that's been the case when I've
made such measurements.

- Dave

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