Microsoft Azure Web Run Tests
A1 v2 - Jul 24 2021

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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: Microsoft Azure
Plan: A1 v2
Datacenter: Virginia, USA
Number of CPU cores: 1
CPU type: Intel(R) Xeon(R) CPU E5-2673 v3 @ 2.40GHz

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 158ms 390ms 85% 0.00% 304 0 5
5 141ms 310ms 28% 0.00% 1504 0 5
10 132ms 290ms 0% 0.00% 4227 1773 10

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