UpCloud Web Run Tests
Native 16GB 8cores - Apr 17 2026

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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: UpCloud
Plan: Native 16GB 8cores
Location: Netherlands
Number of CPU cores: 8
CPU type: AMD EPYC 9575F 64-Core 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 47ms 155ms 99% 0.01% 304 0 5
5 36ms 100ms 97% 0.03% 1504 0 5
10 36ms 70ms 94% 0.16% 6004 0 10
15 34ms 58ms 92% 0.06% 4505 0 5
30 35ms 66ms 84% 0.60% 9013 0 5
60 37ms 68ms 51% 0.30% 18025 0 5
100 37ms 68ms 25% 0.30% 30048 0 5
140 38ms 68ms 22% 0.68% 42062 0 5
180 38ms 70ms 7% 0.64% 54082 0 5
200 39ms 105ms 0% 0.35% 56460 3540 5

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