Key takeaways
- Response time covers the whole round trip, from request sent to the application reporting it done.
- An average hides the slow tail, so report the median with a percentile beside it.
- A response time only means something next to the load and environment that produced it.
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Response Time
Response Time measures the performance of an individual transaction or query. Response time is the amount of time from the moment that a user sends a request until the time that the application indicates that the request has completed.
For example, let’s say you have API and you want to find how much time that API call takes to execute once requested, here you are measuring the response time.
Response time is the total time it takes from when a user makes a request until they receive a response.
When doing a load or performance test you need to find out how is your application, website, API handling all the requests and how the response time increases with the load.
Response Time Load Testing
You can use cloud testing tools to run load and performance tests, tools like LoadFocus which is a – very easy to use and low-cost online service, has accurate results and is compatible with open source Apache JMeter.
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Frequently Asked Questions
What does response time measure?
The time from a user sending a request to the application indicating it has completed, for one transaction or query.
Is an average response time enough?
No. Averages hide the slow tail, so report the median with a percentile such as p95. Users experience individual requests, not your mean.
What makes response times comparable between runs?
Measuring the same transaction under the same conditions. Response time is only meaningful next to the load and environment that produced it.
LoadFocus is an all-in-one Cloud Testing Platform for Websites and APIs for Load Testing, Apache JMeter Load Testing, Page Speed Monitoring and API Monitoring!