Hey I guess the web server takes the extra time to ascertain connections from 3 machines vis-a-vis 1 machine...
:) Deepak On 2/17/12, Robin D. Wilson <[email protected]> wrote: > Just out of curiosity, in your Win7 systems, did you change the > "MAXCONNECTIONSPERSERVER" and "MAXCONNECTIONSPER1_0SERVER" settings > in the registry? > > My experience has been that on all Windows systems - this setting throttles > the number simultaneous out-bound connections you can > make to the same server. I've increased mine to allow 'java.exe' and > 'javaw.exe' to go up to 2048 simultaneous connections - and > that does seem to make a difference in JMeter behavior. But I can't actually > quantify whether it allows all 2048 connections, or if > there is some Windows imposed 'hard limit' at 48 or something... > > -- > Robin D. Wilson > Sr. Director of Web Development > KingsIsle Entertainment, Inc. > VOICE: 512-777-1861 > www.KingsIsle.com > > > -----Original Message----- > From: James Carr [mailto:[email protected]] > Sent: Thursday, February 16, 2012 2:02 PM > To: JMeter Users List > Subject: Complete difference in results when scaling across multiple boxes > > Hi All, > > > > I ran these tests several times, and each time I come back with the similar > results. I really don't get it. I am using JDBC sampler > with max connections set to 30 for running across 3 machines and 90 when > running on one machine. Here's the results: > > > 30 Threads x 3 Machines for 2 minutes > > > > > > > > > > > > > > > > > > > > > Number of Samples: 176,912 > > Average Response: 62 > > Std. Deviation: 436.46% > > > 90 Threads x 1 Machine for 2 minutes > > > > > > > > > > > > > > > > > > > > > Number of Samples: 912,954 > > Average Response: 11 > > Std. Deviation: 34.14% > > > > > > Machine Specs: > > RAM: 8GB > > Processor: Intel Core i7 CPU 870 @ 2.93Ghz > > System Type: 64-bit Windows 7 > > > > Any idea why I see this huge discrepancy? I have double checked on our > database on the server side and I verified that we do have > the number of connections we expect to see, but I can't understand why the > performance looks so lousy with multiple machines. > > > > > > > Thanks, > James > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > -- Namaskara~Nalama~Guten Tag~Bonjour -- Keigu Deepak +91-9765089593 [email protected] http://www.simtree.net Skype: thumsupdeicool Google talk: deicool Blog: http://loveandfearless.wordpress.com Facebook: http://www.facebook.com/deicool "Contribute to the world, environment and more : http://www.gridrepublic.org " --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
