Symeon Breen <[EMAIL PROTECTED]> wrote on 11/23/2005 04:46:48 AM: > Hi Tim - great info - I am always being asked how U2 performs and this > is helpfull to a point. However without being critical it does not > realy say much in terms of real stats ie. Number of transactions, IO > read/writes, program executions etc per second/minute/day .
The goal of this project was not to generate raw numbers like that. It was created to demonstrate that a particular application could perform under the projected user load. A requirement was to provide a certain number of transactions per user per hour. This was not measured in I/O operations, since that is not the measure of real-world productivity. Raw benchmarks that just generate numbers can be interesting, but do not demonstrate real-world productivity. They are always called into question because they could be tweaked to generate desired results by modifying the transactions for maximum throughput. We've all seen benchmark results and have questioned their viability. (OK - you can perform a bubble sort in 3 milliseconds, but what does that mean to my users?) This test was engineered and executed by using an actual application in a realistic environment, with realistic expectations. Tim Snyder Consulting I/T Specialist , U2 Professional Services North American Lab Services DB2 Information Management, IBM Software Group 717-545-6403 [EMAIL PROTECTED] ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
