Kamatera Sustained CPU Endurance Run
Availability 4GB 2 cores - Mar 20 2023

Go to Kamatera



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: Kamatera
Plan: Availability 4GB 2 cores
Number of CPU cores: 2
Burstable CPU resources: no
CPU type: Intel(R) Xeon(R) Platinum 8358P CPU @ 2.60GHz


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. 3960
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. 35.02%
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. 47.8%
Min CPU idle Minimum percentage of CPU idle during the test. 44.4%
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 %
March 21, 2023 18:00 UTC 2013 45.25 0.0
March 21, 2023 16:00 UTC 2871 46.63 0.0
March 21, 2023 14:00 UTC 4048 48.17 0.0
March 21, 2023 12:00 UTC 4969 48.94 0.0
March 21, 2023 10:00 UTC 5217 48.99 0.0
March 21, 2023 08:00 UTC 4944 48.85 0.0
March 21, 2023 06:00 UTC 5310 49.02 0.0
March 21, 2023 04:00 UTC 5255 49.11 0.0
March 21, 2023 02:00 UTC 4802 48.79 0.0
March 21, 2023 00:00 UTC 3295 47.07 0.0
March 20, 2023 22:00 UTC 3039 46.71 0.0
March 20, 2023 20:00 UTC 1688 45.4 0.0
March 20, 2023 18:00 UTC 2163 45.6 0.0

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