Microsoft Azure Web Run Tests
B2s - Mar 13 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: B2s
Datacenter: us-east
Number of CPU cores: 2
CPU type: Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz

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 58ms 120ms 96% 0.00% 304 0 5
5 55ms 115ms 84% 0.00% 1504 0 5
10 55ms 120ms 69% 0.00% 6004 0 10
15 54ms 120ms 55% 0.00% 4505 0 5
25 53ms 120ms 29% 0.00% 7509 0 5
35 52ms 120ms 3% 0.00% 10512 0 5
40 52ms 115ms 0% 0.00% 10837 1163 5

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