ScalaHosting Web Run Tests
Build #2 - Jul 11 2024

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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: ScalaHosting
Plan: Build #2
Datacenter: Texas, USA
Number of CPU cores: 4
CPU type: Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS)

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 99ms 245ms 97% 0.06% 304 0 5
5 89ms 215ms 87% 0.07% 1504 0 5
10 94ms 220ms 74% 0.14% 6005 0 10
15 94ms 230ms 62% 0.08% 4504 0 5
25 94ms 230ms 38% 0.08% 7509 0 5
35 87ms 210ms 19% 0.14% 10513 0 5
45 82ms 190ms 3% 0.06% 13519 0 5
50 82ms 185ms 0% 0.01% 13903 1097 5

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