ScalaHosting Web Run Tests
Build #1 - Nov 25 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: ScalaHosting
Plan: Build #1
Datacenter: New York, USA
Number of CPU cores: 2
CPU type: Intel Core Processor (Broadwell, no TSX, 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 34ms 100ms 97% 0.01% 304 0 5
5 32ms 110ms 89% 0.01% 1504 0 5
10 31ms 105ms 54% 0.02% 6004 0 10
15 31ms 105ms 55% 0.02% 4504 0 5
25 30ms 105ms 43% 0.02% 7509 0 5
40 29ms 105ms 26% 0.01% 12016 0 5
50 29ms 100ms 20% 0.01% 15021 0 5
60 28ms 94ms 5% 0.01% 18026 0 5
70 28ms 94ms 0% 0.03% 19273 1727 5

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