I just set up a Jakarta Tomcat installation (for someone else!) and was able to do some quick benchmarking on two *very* similar machines and here is what I found. Zope Machine: RH 6.1, 300 MHz, 256 MB RAM, 8 GB EIDE Drive - Zope. 2.1.4 Tomcat Machine: RH 6.1, 500 MHz, 512 MB RAM, 3 x 9.1 SCSI in RAID - Jakarta Tomcat 3.1 Using AB (ApacheBench) and hitting a test JSP page that I replicated in Zope (exactly the same words, etc). Tomcat: Document Path: /test.jsp Document Length: 168 bytes Concurrency Level: 100 Time taken for tests: 5.306 seconds Complete requests: 100 Failed requests: 0 Total transferred: 57024 bytes HTML transferred: 16800 bytes Requests per second: 18.85 Transfer rate: 10.75 kb/s received Connnection Times (ms) min avg max Connect: 63 121 177 Processing: 3473 3911 5063 Total: 3536 4032 5240 Zope: Document Path: /test.html Document Length: 157 bytes Concurrency Level: 100 Time taken for tests: 2.141 seconds Complete requests: 100 Failed requests: 0 Total transferred: 36360 bytes HTML transferred: 15857 bytes Requests per second: 46.71 Transfer rate: 16.98 kb/s received Connnection Times (ms) min avg max Connect: 5 8 12 Processing: 94 1091 2117 Total: 99 1099 2129 ------ I thought... wow... so I ran it again, and again and again. Each time the Tomcat stats went down as Zope stayed constant. Now I know that this does not mean that Zope is the fastest thing on the planet but it is an interesting comparison. I mean, 2 x as fast on a machine that is half as fast. Strange but true. So much for "Java Speed" I decided to do it again.. this time with 25/1000 figuring Tomcat would build up and start really flying. Here is what I got. Tomcat: Concurrency Level: 25 Time taken for tests: 41.252 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 582555 bytes HTML transferred: 177000 bytes Requests per second: 24.24 Transfer rate: 14.12 kb/s received Connnection Times (ms) min avg max Connect: 0 0 5 Processing: 183 1015 2300 Total: 183 1015 2305 Zope: Concurrency Level: 25 Time taken for tests: 19.360 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 360000 bytes HTML transferred: 157000 bytes Requests per second: 51.65 Transfer rate: 18.60 kb/s received Connnection Times (ms) min avg max Connect: 0 0 2 Processing: 71 478 540 Total: 71 478 542 Yupp... better for both but Zope still was able to serve up the same content on a slower machine twice as fast. Next, I guess, would be to write some code to actually "do" something on the machine and see what it could do. Also, I should level the playing field by installing Zope on the faster machine and seeing what it can do there. Comments? J