Any specialists of Open Model Thread Group that can shed some light or recommendations on the "Big Bang" on start-up? Thank you.
Robert Bourgault du Coudray Senior Quality Engineer | Bankwest Technology Level 14C Bankwest Place 300 Murray Street Perth WA 6000 (08) 9369 9487 | 0468 770 721 robert.bourgaultducoud...@bankwest.com.au bankwest.com.au<http://www.bankwest.com.au/> [cid:image001.png@01DB0E9B.9727A880] Bankwest acknowledges the Traditional Owners of the lands across Australia as the continuing custodians of Country and Culture. We pay our respect to First Nations peoples and their Elders, past and present. From: Robert Bourgault du Coudray Sent: Thursday, September 19, 2024 9:37 AM To: JMeter Users List <user@jmeter.apache.org> Subject: [OpenModelThreadGroup]Spike of threads on start-up Hi, I am seeing a spike of threads on start-up, which I think is abnormal. For instance, I have set an Open Model Thread Group with following parameters: / * Rampup-up time over 1 min */ rate(0) random_arrivals(1 min) rate(30/min) /* Test for 30 mins */ random_arrivals(30 min) rate(30/min) With these settings, we are seeing a spike of threads up to 160 on start-up before the system stabilises to a more reasonable rate afterwards (see attachment). This is causing false positives on our SUT. Can you please suggest any workarounds or fixes? Thank you Robert Bourgault du Coudray Senior Quality Engineer | Bankwest Technology Level 14C Bankwest Place 300 Murray Street Perth WA 6000 (08) 9369 9487 | 0468 770 721 robert.bourgaultducoud...@bankwest.com.au<mailto:robert.bourgaultducoud...@bankwest.com.au> bankwest.com.au<http://www.bankwest.com.au/> [cid:image001.png@01DB0E9B.9727A880] Bankwest acknowledges the Traditional Owners of the lands across Australia as the continuing custodians of Country and Culture. We pay our respect to First Nations peoples and their Elders, past and present. _______________________________________________________________________________ Unencrypted electronic mail is not secure and may not be authentic. If you have any doubts as to the contents please telephone to confirm. This electronic transmission including any attachments is intended only for those to whom it is addressed. It may contain copyright material or information that is confidential, privileged or exempt from disclosure by law. Any claim to privilege is not waived or lost by reason of mistaken transmission of this information. If you are not the intended recipient you must not distribute or copy this transmission and should please notify the sender. Your costs for doing this will be reimbursed by the sender. We do not accept liability in connection with computer virus, data corruption, delay, interruption, unauthorised access or unauthorised amendment. _______________________________________________________________________________ This email has been scanned by the Microsoft Exchange Online Protection cloud service. For more information please visit Exchange Online Protection<https://www.microsoft.com/en-au/microsoft-365/exchange/exchange-email-security-spam-protection>
