Clouding.io Sustained CPU Endurance Run
4GB 2 cores 60GB - Nov 26 2019

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The sustained CPU endurance test runs a cpu intensive task in a loop for 24 hours. As maxing out the cpu might be considered abusive, the tests aims to use no more than 50% of each cpu core on the VPS.

The purpose of this type of test is

  • first to evaluate the speed to the VPS,
  • second to evaluate the stability over time of the cpu available to the VPS
  • and third to detect VPS where the CPU is throttled and the performance goes down over time after cpu utilization goes over a threshold the provider considers excessive for a particular plan.

The performance is measured at regular intervals in terms of tasks executed per hour, amount of idle cpu and amount of "cpu steal".

Provider: Clouding.io
Plan: 4GB 2 cores 60GB (Off rankings)
Number of CPU cores: 2
Burstable CPU resources: no
CPU type: Intel Xeon Virtual CPU


DescriptionValue
Target CPU usage Overall CPU that the endurance test tries to use across all CPU cores on the VM. 50%
Average iterations per hour Average number of tasks executed per hour. It represents how much work the VPS was able to achieve per hour. Higher numbers are better. 3064
Coefficient of variation iterations per hour This represents the dispersion of the number of tasks per hour. It's the standard deviation divided by the mean number of tasks per hour. It's an indicator on stability of the performance of the VPS. A low standard deviation means the VPS speed stayed close to constant. A high standard deviation means performance varied significantly during the test. 1.50%
Average CPU idle Average percentage of CPU that was idle during the test. This number should be close to 50% unless the CPU is being throttled like in burstable VPS plans. 49.0%
Min CPU idle Minimum percentage of CPU idle during the test. 45.6%
Average CPU steal Average percentage of CPU steal during the test. Lower is better. 0.02%
Max CPU steal Maximum percentage of CPU steal during the test. 0.03%


Number of tasks completed per hour




Date Number of iterations per hour CPU Idle % CPU Steal %
November 29, 2019 00:00 UTC 3049 51.5 0.02
November 28, 2019 22:00 UTC 3052 49.07 0.02
November 28, 2019 20:00 UTC 3054 49.19 0.02
November 28, 2019 18:00 UTC 3058 49.3 0.02
November 28, 2019 16:00 UTC 3065 49.07 0.02
November 28, 2019 14:00 UTC 3065 48.93 0.02
November 28, 2019 12:00 UTC 3060 49.03 0.02
November 28, 2019 10:00 UTC 3061 48.82 0.02
November 28, 2019 08:00 UTC 3066 48.33 0.02
November 28, 2019 06:00 UTC 3064 48.35 0.02
November 28, 2019 04:00 UTC 3069 48.14 0.02
November 28, 2019 02:00 UTC 3061 47.83 0.02

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