IONOS Sustained CPU Endurance Run
VPS XXL - Oct 06 2021

Go to IONOS



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: IONOS
Plan: VPS XXL
Number of CPU cores: 6
Burstable CPU resources: no
CPU type: Intel(R) Xeon(R) Gold 5120 CPU @ 2.20GHz


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. 19461
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. 0.74%
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. 49.7%
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. 0.00%


Number of tasks completed per hour




Date Number of iterations per hour CPU Idle % CPU Steal %
October 07, 2021 16:00 UTC 19598 52.22 0.0
October 07, 2021 14:00 UTC 19588 49.86 0.0
October 07, 2021 12:00 UTC 19583 49.85 0.0
October 07, 2021 10:00 UTC 19584 49.87 0.0
October 07, 2021 08:00 UTC 19601 49.86 0.0
October 07, 2021 06:00 UTC 19456 49.86 0.0
October 07, 2021 04:00 UTC 19377 49.85 0.0
October 07, 2021 02:00 UTC 19362 49.85 0.0
October 07, 2021 00:00 UTC 19403 49.86 0.0
October 06, 2021 22:00 UTC 19406 49.86 0.0
October 06, 2021 20:00 UTC 19279 49.86 0.0
October 06, 2021 18:00 UTC 19380 49.86 0.0
October 06, 2021 16:00 UTC 19276 49.8 0.0

Be the first to learn about new Best VPS rankings. Subscribe to our newsletter.