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"Craig R. McClanahan" wrote:
>
> The first IBM 1.1.6 implementation had some problems with sockets that made it
> difficult to run JSWDK on it, but the "August 16" (or thereabouts) refresh
> fixed all these problems. On my relatively database-intensive and
> compute-bound application, performance is about 300% - 400% better than the
> Blackdown 1.1x JVM, most likely because of the JIT and the native threads
> implementation (I'm running on a dual processor server).
>
Most of the I/O has been rewritten from scratch, I believe, because I/O
performances with the IBM JDK, compared to the Sun/Blackdown JVM are
impressive. The JIT is a nice beast, works pretty well, but I believe
that most of the performance increases are due to the new I/O.
> Testing of our app under the Linux 1.1.8 JVM is currently in progress. I hope
> we see performance improvements similar to the 1.1.6 -> 1.1.8 improvements
> under NT, which were quite visible in another very compute-bound application.
>
Let me know when you have some data...
Pier
--
Pierpaolo Fumagalli - IBM Center for Java Technologies
<mailto:[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED]>
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