Contabo Web Run Tests
VPS M SSD - Jan 31 2020

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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 M SSD (Off rankings)
Datacenter: Germany
Number of CPU cores: 6
CPU type: Intel(R) Xeon(R) CPU E5-2630 v4 @ 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 106ms 650ms 95% 0.20% 602 0 5
5 96ms 200ms 90% 0.41% 3003 0 5
10 98ms 190ms 83% 0.72% 5999 0 10
15 99ms 205ms 78% 1.31% 4496 0 5
30 104ms 215ms 51% 2.84% 9001 0 5
50 106ms 230ms 19% 4.32% 15006 0 5
70 105ms 220ms 2% 3.08% 21014 0 5
80 102ms 205ms 2% 2.60% 24018 0 5
90 105ms 215ms 3% 3.18% 26902 97 5
100 107ms 220ms 3% 4.06% 28006 1985 5

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