On 09/01/2009, Ragini Thakur <ragi...@cybage.com> wrote: > We are using JMeter for performance testing of the application/server. > Our aim is to initiate X number of requests per minute and record the > response time of the request calls, at different load conditions i.e. we > send the fixed number of the requests per minute and record the response > time. To control the number of requests (users) initiation per minute, > we have used the 'Constant Throughput Timer' in JMeter test plan. > > > > To increase the load step by step, we use the 'Number of Threads > (users)' parameter under 'Thread Group' at JMeter GUI. At small value of > threads (160, 264, 784 etc), JMeter can successfully initiate and record > the all calls in a minute for a tests of duration 2 hours. But at large > value of threads like 1560, JMeter is not able initiate all calls per > minute. JMeter can initiate and record only about 1100 to 1200 calls per > minute throughout the test of 2 hours. > > > > E.g. If we configure the number of threads to 1560 [ distributed across > different thread groups in test plan] > > > > We observed that for first minute JMeter is able to initiate 1560 > requests but, second minute onwards the number of requests initiated > goes on decreasing i.e. 1100 0r 1200 requests per minute are initiated. > > > > As per our understanding the number of requests imitated after first > minutes are dependent on the response from the server as thread waits > for the response before initiating next request. Can this dependency be > removed? > > > > Otherwise, Is there any way to tune JMeter to initiate desire number of > calls per minute? What are those tuning parameters. > > > > Any help in this regard will be appreciated. > > > > Note: We are using JMeter distributed testing [ One master and 4 Slaves] >
With large numbers of threads the master JMeter can become overloaded, as can the network. Try using multiple non-GUI test runs instead. > > > Regards, > Ragini Thakur > > > "Legal Disclaimer: This electronic message and all contents contain > information from Cybage Software Private Limited which may be privileged, > confidential, or otherwise protected from disclosure. The information is > intended to be for the addressee(s) only. If you are not an addressee, any > disclosure, copy, distribution, or use of the contents of this message is > strictly prohibited. If you have received this electronic message in error > please notify the sender by reply e-mail to and destroy the original message > and all copies. Cybage has taken every reasonable precaution to minimize the > risk of malicious content in the mail, but is not liable for any damage you > may sustain as a result of any malicious content in this e-mail. You should > carry out your own malicious content checks before opening the e-mail or > attachment." > www.cybage.com > > > --------------------------------------------------------------------- To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org
