Thanks for the quick reply Jordi. I'll have to go back to make sure, but I was monitoring the jmeter server(s) at the same time and I don't remember max'ing them out. Damn, I should have captured those stats too (I have 20 pages of stats from the web and database server).
BTW, how can you tell it was max'ed at 1x20? Hm. Then I guess anything larger than 20 threads in my tests is crap? Oddly enough, the load on the database side kept increasing with the number of threads. I went up to 80 threads on a previous test and almost killed the database server. :-) Thanks! js. On Wed, Oct 01, 2003 at 05:20:34PM +0200, Jordi Salvat i Alabart wrote: > Looks like around 1x20 you saturated the JMeter CPU. 1x40 did not > increase load -- not because the web server was saturated, but because > the JMeter machine was. When you did the 2x20, you were actually > providing twice as much CPU power to JMeter, so you could create twice > as much load. > > Jordi. > > Jean-Sebastien Morisset wrote: >> Guys, >> >> I ran some tests overnight with jmeter v1.9.1, and got some odd results... >> >> -------------------------------------------------------------------------- >> >> Threads Rate R/Thr. Avg CPU >> 1 x 1 13/sec 13/sec 75ms 28% >> 1 x 5 22/sec 4.4/sec 222ms 38% >> 1 x 10 23/sec 2.3/sec 436ms 37% >> 1 x 15 23/sec 1.5/sec 646ms 39% >> 1 x 20 23/sec 1.15/sec 850ms 38% >> 1 x 30 24/sec 0.8/sec 1251ms 38% >> 1 x 40 24/sec 0.6/sec 1665ms 38% >> 2 x 20 57/sec 0.7/sec 1265ms 72% >> 2 x 30 57/sec 1.4/sec 1541ms 72% >> 2 x 40 57/sec 0.7/sec 1486ms 72% >> 2 x 60 57/sec 0.5/sec 2220ms 72% >> >> * CPU is the web server CPU. >> >> * The Threads # x # is the number of jmeter servers x the number of >> threads on each. >> >> * When the jmeter servers were increased to 2, I added the Rates of each >> together to get a total # of requests/second. >> >> -------------------------------------------------------------------------- >> >> Notice one of the tests was 1x40 and another 2x20. These two tests should >> have given the same results since the total number of threads is the same. >> >> When using 2 jmeter servers, I added the Rate together to get a total >> number of requests / second. This _seems_ logical since each jmeter >> server is telling me it can do X number of requests per second, but the >> 1x40 and 2x20 tests should then have the same Rate number. >> >> I also don't understand why the web server's CPU jumped from 38% -> 72% >> when going from 1x40 to 2x20. This would indicate twice the number of >> users/threads. >> >> Any thoughts? :-) >> >> Thanks, >> js. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > -- Jean-Sebastien Morisset, Sr. UNIX Administrator <[EMAIL PROTECTED]> Personal Home Page <http://jsmoriss.mvlan.net/> JS & Melanie's Homebrewery <http://brewery.mvlan.net/> Underwater and Travel Photographs <http://www.mvpix.com/> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
