IONOS Sustained CPU Endurance Run
Basic Cube XL - May 12 2026

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: Basic Cube XL
Number of CPU cores: 16
Burstable CPU resources: no
CPU type: AMD EPYC-Milan Processor


Number of tasks completed per hour




Date Number of iterations per hour CPU Idle % CPU Steal %
May 13, 2026 10:00 UTC 39243 49.71 0.0
May 13, 2026 08:00 UTC 41021 49.73 0.0
May 13, 2026 06:00 UTC 40095 49.77 0.0
May 13, 2026 04:00 UTC 39268 49.79 0.0
May 13, 2026 02:00 UTC 39676 49.79 0.0
May 13, 2026 00:00 UTC 40417 49.79 0.0
May 12, 2026 22:00 UTC 39433 49.79 0.0
May 12, 2026 20:00 UTC 39088 49.78 0.0
May 12, 2026 18:00 UTC 38591 49.73 0.0

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