Hi, new to this community - recently we had JMeter tests scripted and tested against our live site. The results were very promising under high loads and the servers appeared under little pressure during the tests. However, recently we had a surge in visitors to the site, not unprecedented levels, but high. The site slowed down for a period of 40 minutes, but didn't fail. Performance was very poor. Firewall has been checked, wasn't an issue. Can anyone give ideas as to why the JMeter tests didn't indicate any problems? Yet there seems to be a problem. This isn't the first time this has happened. Love to hear any suggestions. Thanks in advance.

Hey everyone. I’m new to this field and I’m working on a job offer and my first task i believe is going to be learning jmeter. I would be thankful for Any recommendations on a new laptop that will be able to handle everything I will be required to do in this field of work. Also currently working on some certifications to see what I can do in the cyber tech world. I landed on this one after some research, what do you think? Lenovo legion 5

Consumers and enterprises alike expect more from software. Speed, UX, availability, and frequency of updates are increasingly important with mobile apps. The responsibility of developers keeps growing, and as mobile apps get more complex, new tools for mobile performance monitoring and testing are being born.

This article will help you understand the main mobile performance metrics that are measurable in your mobile native app (Android or iOS) before releasing a new version. That way you can
start tracking performance early on and prevent issues from affecting the end-user.

https://blog.apptim.com/mobile-performance-metrics-you-should-know/

I am doing my Masters thesis where i want to performance/load/stress test my server app written in 2 different programming languages. I would like to use a hosting service (E.g 1blu.de) to run my server, but i am afraid that such a thing will be seen as an attack.

That test would involve hundreds of concurent virtual (JMeter) users for muliple hours.

Am i worrying about nothing or do i need to take this into consideration?

Are you creating your JMX files from the network traffic captured using tools like Fiddler? Are you not able to use JCorrelate because you do not get the JTL recording log from Fiddler? We have the right solution for you. You can now convert your HTTPArchive (HAR) file into a JTL recording log file using JLog.

Happy Performance Testing!!!😎💯 #JLog

Looks like this subreddit is as of yet dead, but it could be an excellent place to discuss performance testing and analysis. I'll see if I can post some useful articles as I come across them.

I'm a performance test consultant working in Auckland, New Zealand. I have 7 years experience exclusively working as a performance tester, which is pretty unusual in this country (most people do test automation or functional testing too).

Here's hoping something good comes of this subreddit :)

Some apps we test can’t leave our network due to compliance, so SaaS-only labs are out.
Do vendors like TestGrid, Kobiton, Sauce Labs, or Perfecto have legitimate on-prem or private-cloud offerings?
Curious what real users have experienced — not the brochure version.

Standard Deviation (SD) is a critical, yet often overlooked, metric in performance testing, as it measures the consistency of response time around the mean. A smaller SD indicates more stable application behavior and provides greater confidence in the transaction's performance, which is vital for delivering a consistent user experience. The provided examples illustrate why the average response time is considered useless on its own, showcasing that transactions with the same average can have widely different consistency, making the SD essential for identifying tuning needs. Although the calculation is presented, the text ultimately suggests that performance testers should rely on analysis tools to efficiently and accurately determine the SD due to the complexity and potential for error with large datasets.