Contabo Web Run Tests
VPS S NVMe - Apr 23 2023

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Web Run tests are made of a load test tool and a database intensive Rails web application.

The load test tool sends HTTP requests to the web application at a controlled rate and records HTTP response codes, response latencies and timeouts. The load test tool is multithreaded and runs on the same VPS where the web application runs.

The intent is to measure:

  • the response times (latency) of the web server
  • the amount of CPU used to serve those requests under various load levels
  • what's the maximum load at which 100% requests are served without timing out.

Provider: Contabo
Plan: VPS S NVMe
Datacenter: Germany
Number of CPU cores: 4
CPU type: AMD EPYC 7282 16-Core Processor

Web Runs by request rate


Note: the P99 is the 99th percentile. The P99 latency is the latency of the 1% slowest HTTP requests in the web run.


Rate (reqs/s) Average Latency P99 Latency CPU idle CPU steal Successful requests Timed out requests Duration (minutes)
1 95ms 370ms 96% 0.21% 304 0 5
5 87ms 250ms 87% 0.66% 1502 2 5
10 77ms 225ms 77% 0.87% 6004 0 10
15 74ms 220ms 68% 0.88% 4504 0 5
30 74ms 220ms 40% 0.97% 9013 0 5
45 75ms 230ms 9% 1.71% 13518 0 5
50 73ms 225ms 2% 0.56% 15023 0 5
60 73ms 225ms 0% 0.39% 15405 2595 5

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