ArticHost Sustained CPU Endurance Run
LIN-SSD-L - Nov 30 2020

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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: ArticHost
Plan: LIN-SSD-L
Number of CPU cores: 8
Burstable CPU resources: no
CPU type: Intel Xeon E3-12xx v2 (Ivy Bridge)


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. 13414
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. 1.04%
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. 49.9%
Min CPU idle Minimum percentage of CPU idle during the test. 49.6%
Average CPU steal Average percentage of CPU steal during the test. Lower is better. 0.01%
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 %
December 01, 2020 18:00 UTC 13138 60.26 0.01
December 01, 2020 16:00 UTC 13038 49.89 0.02
December 01, 2020 14:00 UTC 13413 49.89 0.01
December 01, 2020 12:00 UTC 13455 49.89 0.01
December 01, 2020 10:00 UTC 13475 49.89 0.01
December 01, 2020 08:00 UTC 13465 49.89 0.01
December 01, 2020 06:00 UTC 13473 49.88 0.01
December 01, 2020 04:00 UTC 13464 49.84 0.01
December 01, 2020 02:00 UTC 13465 49.9 0.01
December 01, 2020 00:00 UTC 13359 49.89 0.01
November 30, 2020 22:00 UTC 13494 49.89 0.01
November 30, 2020 20:00 UTC 13488 49.89 0.01
November 30, 2020 18:00 UTC 13426 49.86 0.01

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