Vultr Sustained CPU Endurance Run
Regular 1GB 1 core - Jun 05 2021

Go to Vultr



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: Vultr
Plan: Regular 1GB 1 core
Number of CPU cores: 1
Burstable CPU resources: no
CPU type: Intel Xeon Processor (Cascadelake)


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. 3187
Coefficient of variation iterations per hour This represents the dispersion of the number of tasks per hour. It's the standard variation 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. 3.79%
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. 48.8%
Min CPU idle Minimum percentage of CPU idle during the test. 47.5%
Average CPU steal Average percentage of CPU steal during the test. Lower is better. 1.46%
Max CPU steal Maximum percentage of CPU steal during the test. 2.61%


Number of tasks completed per hour




Date Number of iterations per hour CPU Idle % CPU Steal %
June 07, 2021 00:00 UTC 3350 50.17 0.6
June 06, 2021 22:00 UTC 3301 48.69 1.14
June 06, 2021 20:00 UTC 3108 48.63 1.99
June 06, 2021 18:00 UTC 3080 48.61 2.1
June 06, 2021 16:00 UTC 3009 48.57 2.41
June 06, 2021 14:00 UTC 3093 48.56 2.05
June 06, 2021 12:00 UTC 3111 49.03 1.76
June 06, 2021 10:00 UTC 3159 48.93 1.43
June 06, 2021 08:00 UTC 3239 48.97 1.17
June 06, 2021 06:00 UTC 3287 49.05 0.96
June 06, 2021 04:00 UTC 3308 49.11 0.78
June 06, 2021 02:00 UTC 3194 49.04 1.0
June 06, 2021 00:00 UTC 3356 49.01 0.69

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