I did some performance testing using two machines which are dual pentium4 zeons each with 4GB of memory, u320 scsi etc.
I used jakarta jmeter on one, and tested apache 1.3.28 - modjk2 - tomcat 5.0.16 - jetspeed1.4 the results are interesting. I can't say they're perfect - far from it - because I ran each test only one unless something made me suspicious over results (for example ensuring no developers on either machine). -----Forwarded Message----- Here's the results of comparing performance of our.psineteurope.com when running different web services. Note that apache was the front end to tomcat, tomcat runs jsps directly, or the jetspeed webapp. The jetspeed home page was tested, as well as a particular jetspeed portlet I wrote which simply pulls a few rows from a mysql db (on another machine)to see how much the DB slows things down. The following table is the page response time in milliseconds when 200 fetches are done sequentially by a varying number of parallel users. Due to the length of the tests. (view in fixed-width font like courier-new) Server| Users 1 10 33 100 500 --------------------------------------------------- Apache 1 1 3 3 4 Tomcat/JSP 5 22 25 19 32 Jetspeed 73 439 1448 4709 - Jetspeed/mysql 60 432 1465 4787* - The results are the page response in milliseconds (1000th of a second). I did not run a 500 "user" test against jetspeed, and truncated the 100 user jetspeed/mysql test before completion as it was taking so long, but it still gave useful results as confirmation. Conclusions: For very low loads, jetspeed runs adequately, but the performance falls off very badly as the number of parallel fetches increases. Apache, as would be expected, sustains a heavy load without flinching, and Tomcat/JSP seems to cope well with high loads. The above figures are for serves running redhat7.3 and kernel 2.4.x, without tuning anything at all. A 20% performance improvement can be almost guaranteed with a shift from kernel 2.4.x to 2.6.x. Paul --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
