IONOS Web Run Tests
Cloud Server XXL - May 13 2021

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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: IONOS
Plan: Cloud Server XXL
Datacenter: USA
Number of CPU cores: 8
CPU type: Intel(R) Xeon(R) Gold 5120 CPU @ 2.20GHz

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 62ms 290ms 99% 0.00% 304 0 5
5 57ms 130ms 95% 0.00% 1504 0 5
10 56ms 125ms 92% 0.00% 6005 0 10
15 55ms 120ms 88% 0.00% 4505 0 5
30 54ms 125ms 77% 0.00% 9013 0 5
60 55ms 125ms 55% 0.00% 18026 0 5
100 55ms 130ms 26% 0.00% 30045 0 5
130 56ms 130ms 4% 0.00% 39058 0 5
140 56ms 130ms 0% 0.00% 40464 1536 5

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