Vultr Sustained CPU Endurance Run
High Performance 1GB - Jul 24 2022

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: High Performance 1GB
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. 4089
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. 0.65%
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. 49.6%
Min CPU idle Minimum percentage of CPU idle during the test. 48.7%
Average CPU steal Average percentage of CPU steal during the test. Lower is better. 0.00%
Max CPU steal Maximum percentage of CPU steal during the test. 0.01%


Number of tasks completed per hour




Date Number of iterations per hour CPU Idle % CPU Steal %
July 26, 2022 00:00 UTC 4110 58.75 0.0
July 25, 2022 22:00 UTC 4070 49.52 0.0
July 25, 2022 20:00 UTC 4076 49.65 0.0
July 25, 2022 18:00 UTC 4085 49.65 0.0
July 25, 2022 16:00 UTC 4084 49.63 0.01
July 25, 2022 14:00 UTC 4075 49.62 0.0
July 25, 2022 12:00 UTC 4082 49.64 0.0
July 25, 2022 10:00 UTC 4077 49.63 0.0
July 25, 2022 08:00 UTC 4079 49.55 0.0
July 25, 2022 06:00 UTC 4109 49.65 0.0
July 25, 2022 04:00 UTC 4100 49.66 0.0
July 25, 2022 02:00 UTC 4114 49.63 0.0
July 25, 2022 00:00 UTC 4116 49.64 0.0

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