Katapult Web Run Tests
ROCK-3 - Jul 05 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: Katapult
Plan: ROCK-3
Datacenter: New York, USA
Number of CPU cores: 1
CPU type: AMD EPYC-Rome 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 88ms 200ms 90% 0.00% 304 0 5
5 77ms 140ms 58% 0.01% 1504 0 5
10 56ms 130ms 39% 0.00% 6005 0 10
15 51ms 115ms 18% 0.01% 4504 0 5
18 50ms 110ms 2% 0.00% 5404 0 5
20 50ms 110ms 0% 0.00% 5638 362 5

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