Microsoft Azure Web Run Tests
B2s - Nov 25 2019

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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: East US 2
Number of CPU cores: 2
CPU type: Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz

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 63ms 135ms 95% 0.00% 600 0 5
5 58ms 105ms 80% 0.00% 3000 0 5
10 59ms 110ms 62% 0.00% 6000 0 10
15 59ms 115ms 44% 0.00% 4500 0 5
20 63ms 130ms 24% 0.00% 6000 0 5
25 67ms 130ms 8% 0.00% 7500 0 5
30 68ms 145ms 1% 0.00% 8184 816 5

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