Vultr Web Run Tests
High Frequency 16GB - Aug 02 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: Vultr
Plan: High Frequency 16GB
Datacenter: New York, USA
Number of CPU cores: 4
CPU type: Intel Core Processor (Skylake, 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 49ms 145ms 98% 0.00% 304 0 5
5 46ms 100ms 93% 0.00% 1504 0 5
10 49ms 110ms 85% 0.01% 6005 0 10
15 48ms 105ms 79% 0.02% 4505 0 5
30 51ms 115ms 58% 0.03% 9014 0 5
50 51ms 115ms 32% 0.03% 15021 0 5
70 53ms 120ms 2% 0.03% 21029 0 5
80 53ms 120ms 2% 0.03% 21202 2798 5

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