Re: EZ/X Speed: Rebunking Oracle's Debunk: WAS (Getting Some

Hi Steve,

> Your latest Jar's benchmark-with-output
> makes the same change I made which was
> to make both try writing out to a file.
> No conspiracy theories. Nothing up my sleeve.

Super. Glad we got it right.

> 
> I'll give this week's Jar a spin when I get back
> from travelling this week at XML99 so I'm
> trying it on the same machine where I ran my
> previous tests for continuity. My initial impression
> is that the 1.2.2 JVM being used makes a big
> difference... I'm not using Sun's default 1.2.2
> in my environment. Maybe I'll download it to match
> your environment.

When optimizing other Java products, Activated has learned that Java
performance can be quite sensitive to both the version and the provider of
the JVM. Things that run quickly in a Sun JVM may lag a little in the IBM
version and vice versa. There can also be significant and non-deterministic
variations due to JIT behavior - we run our tests 5x and take the average to
mitigate these effects.

In the end - it would be great if there was a standard set of xml, xsl,
platform, and JVM combinations that could be used for performance
comparisons.

Regards,

Michael Sick

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