> > Thank you Bryan - I was just consulting Ben Forta's book on
> > cflock and to quote "Forcing code to single threaded use only
> > can seriously impact system performance." Do you think this is
> > an issue in this case?
>
> Not necesarily. I ran a regression test where I used different
> locking methods to read 10,000 application variables (same locking
> issue as session variables) and the results were somewhat
> surprising; using one CFLOCK tag outside the loop it took 450
> ms while using 10,000 individual locks inside the loop took
> only 600 ms. I performed this experience using CF Server 4.5
> on my laptop (Pentium 3 with 256 RAM). As you can see, the
> effect of one lock or even of 20 simultaneous locks is
> practically nill.
I'm assuming from the above that you're using a single script with a loop
inside it, and you're calling that script once from your browser. If my
assumption is incorrect, I apologize in advance.
You'll want to be extremely careful about using looping-based tests to
determine server performance. Typically, they don't really tell you what you
want to know. Rather than running one script which does something 1000
times, a much better test would be to have one script run by 1000 concurrent
users - it'll tell you a lot more about real-world performance.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
voice: (202) 797-5496
fax: (202) 797-5444
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