I just came across this today.
I am sorry I did not keep current with the group!
The results for Haley appear to be off.

Our results show less than one twentieth of a second (0.05 sec) for 64
guests.
Please see http://www.haley.com/MannersBenchmarkResults.html and/or
http://www.haley.com/RulesEngineForJavaBenchmarks.html if you are
interested.

(That page references also references results published by ILOG for
interpreted JRules 2.1
which shows a compilation improvement for JRules that is closer to an
order of magnitude
rather than 25% as described in other correspondence here.)

We have also heard that JRules-OPT is procedural rather than rule-based.
Is that code "open source"? 

Paul Haley, CEO
1 (412) 741-6420
http://www.haley.com
The Haley Enterprise, Inc.
solutions that do what they're told


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 29, 2001 2:09 PM
To: [EMAIL PROTECTED]
Cc: Al-Akhras, Khaled
Subject: RE: JESS: Manners test error


At 13:38 29/6/2001 -0400, Al-Akhras, Khaled wrote:
> How does it compare to the other implementations?

These are some of the data resulting from my tests:

Product    Company    16 Guests    32 Guests    64 Guests    128 Guests
CLIPS      NASA         0.4          1.5          52           2520
CLIPS\R2   PST          0.015        0.36         2.75         22.33
G2         Gensym       0.266        2.875        38.14        551.64
JESS 6.0   Sandia Labs  0.2          0.8          7.3          92
JRULES     ILog         0.093        0.437        6.05         101.81
JRULES-OPT ILog         0.093        0.2          0.64         2.43
OPSJ       PST          0.14         0.31         1.64         10.98
RETE++     Haley        0.03         0.34         3.46         63.75
RULES      ILog         0.031        0.11         2.71         58.9

The time units are in seconds. Although not very relevant, the system
used 
was a Dell PowerEdge with Windows NT 4.0 Server, 256 MB RAM, and dual 
750 MHz Pentium 3 processors. The Java based tests (Jess, JRules and 
OPSJ) were also tried on a SunBlade 1000 with Solaris 8, 1GB RAM, dual 
750 MHz UltraSPARC-III processors. It was slower in all the cases. In 
both systems I used the same JDK 1.3.0.

Regards,

Juanjo
-- 
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
|                Juan José García Adeva                |
| Room 1G-628A                   mailto:[EMAIL PROTECTED] |
| Avaya Labs Research          http://www.avayalabs.com|
| 101 Crawdords Corner Road     Phone: +1-732-817-6228 |
| Holmdel, NJ 0733-3030           Fax: +1-732-817-4870 |
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