On Jul 26, 2007, at 12:03 PM, amrinder wrote:
We have been using Jess very successfully on Linux and Windows
platforms.
The performance really blows the competition away.
Great! Glad to hear it!
When we use the same application on Solaris OS on a SPARC box, we see
processing time that is twice that on a linux box (2 seconds per
transaction
in Linux, 5 seconds per transaction in Solaris). Even though, the
Solaris
box is multi CPU and has the same RAM as the linux box.
Well, I've personally been surprised by exactly this sort of thing in
the past, and had it turn out that the commodity PC simply blew the
Sun machine away in terms of raw compute performance. The Sun machine
is likely to have excellent network and I/O performance and
reliability, but that doesn't mean it pumps out more MIPS. The first
thing to do is to eliminate that possibility with an alternative
benchmark program.
Could there be some settings that we may have missed that causes
Solaris box
to be much slower than cheapo linux box?
If it actually is a faster machine, then you'd want first to look at
the Java version; make sure it's the genuine Sun JVM, for example,
and that it's up to date. It used to be that there were alternative
thread implementations you could use, but I think those days are long
gone, and Java performance tuning on Solaris is just the same as on
any other platform.
As a reference, we have over 4000 rules, some of which are about
40k clips
file each. Most rules are smaller, such as 2k clips files.
Thanks,
Amrinder
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Ernest Friedman-Hill
Advanced Software Research Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
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