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Questions tagged [load-testing]

The load-testing tag is for issues relating to the setting up or running of load tests.

Load testing is end-to-end performance testing under anticipated production load, which determine response times for various time critical transactions and business processes.

As per wikipedia:

Load testing is the process of putting demand on a system or device and measuring its response.

Load testing is performed to determine a system’s behavior under both normal and anticipated peak load conditions. It helps to identify the maximum operating capacity of an application as well as any bottlenecks and determine which element is causing degradation.

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ab Failed Requests

I've built a simple apache + django + mod_wsgi webapp that I am testing on my local machine. I've started load testing it using ab - and I am seeing a few failed requests. ab -n 500 -c 100 "http://localhost/" output: .... Complete requests: …
andy boot
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Automated Load/Stress testing via a continuous integration server

My company currently has stress tests that are run manually through JMeter. We also use TeamCity for automation of JUnit testing. It's become clear that we need to automate our stress testing as well to provide more generalized testing of our entire…
Casey Jordan
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Throttle down CPU speed of VMWare image

Is it possible to throttle down the CPU speed of a VMWare image so that i can simulate a slow computer and test how my software works on a slow machine? Or is there any other way to do this? Im using VMWare Server 2.0 and its a CentOS Image.
Allan Simonsen
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MySQL load/stress testing

I am going to do load testing on mysql server, could someone recommend good metrics to concentrate on? Any automated way(read software) of getting/tracking them? Thank you!
Alex N
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Inefficient CPU usage by Tomcat

I am using tomcat to convert pdf to png. I was using Jmeter to load/throughput test the app using a Intel(R) Xeon(R) CPU X5550 @ 2.67GHz server which has 16 hyper-threaded cores. Tomcat6 had 2gigs of heap memory allocated, and the connector was…
Mir
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stress test video streaming

is there a way to stress test video streaming? Basically simulating a high number of people simultaneously streaming a video? This is an amazon 'cloud' service that will be enabled for my site.
poppet
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Are there any tools for load / stress testing that can simulate image, video and audio uploads to Amazon EC2?

As part of my web application users can upload photos, audio and video files from a Flash SWF to my EC2 based upload server. I want to find a tool that I can use to stress test the EC2 instance (which runs behind an Elastic Load Balancer). Are there…
undefined
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Coldfusion 8 Application Crashes Under Heavy Load

We have a CF8 app that runs for 20-25 minutes before crashing under heavy load ~ 1200 users. This load is generated by our load testing tool: 1200 users ramped up in 5 mins (approx behavior of our users), running for an hour. We have this app on…
KM.
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How do you know what number of page views per second is an acceptable amount for your server?

Apache's AB tool allows us to test our server to see how many pages per second a server can handle. The results are obviously is going to vary based on the specs of the server hardware and software configuration. My question is: how do you know when…
John Conde
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Globally-distributed load testing service providers

We are looking for a third-party service providers to load-test our website infrastructure, preferably across multiple geos. Any recommendations? We have done internal load testing with Load Runner and JMeter, but we want to see the impact of global…
frankadelic
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How to calculate server bandwidth / load estimates?

What's either a good rule of thumb or a method to estimate load on a Windows server for a php application? How do I estimate bandwidth required for 1000 users on the site, or 10,000?
TWord
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How to interpret ab result?

I am using ab to load test my server. As I increase the concurrency number from 1, the requests per sec. goes up. I also see time per request (mean) goes up, while time per request (mean across all concurrent threads) goes down. However, once the…
cseric
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Linux testing - CPU & disk

I am a bit rusty lately. What is the standard way to test CPU and disk I/O these days?
JavaRocky
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What matters when optimizing a nginx server for audio/video streaming?

I am looking for opinions and resources. Serving rtmp, dash, hal with nginx-rtmp-module. Test streaming from another machine with ffmpeg, but will probably use OBS later on. Which nginx settings matter? What's important in relation to hardware…
treakec
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How can I variably stress test a server with Ubuntu?

I need to stress test a group of servers but is there a way to stress test a normal Ubuntu instance that doesn't just whack the CPU percentage up to 100%. Something that holds the CPU at 60% for example or does variable stress tests that keep the…
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