Amazon AWS Sustained CPU Endurance Run
m8i.xlarge - Apr 02 2026

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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: Amazon AWS
Plan: m8i.xlarge
Number of CPU cores: 4
Burstable CPU resources: no
CPU type: Intel(R) Xeon(R) 6975P-C


Number of tasks completed per hour




Date Number of iterations per hour CPU Idle % CPU Steal %
April 02, 2026 20:50 UTC 958 50.0 0.0
April 02, 2026 20:40 UTC 955 49.86 0.0
April 02, 2026 20:30 UTC 946 49.85 0.0
April 02, 2026 20:20 UTC 962 49.9 0.0
April 02, 2026 20:10 UTC 951 49.82 0.0
April 02, 2026 20:00 UTC 949 49.95 0.0
April 02, 2026 19:50 UTC 960 49.76 0.0
April 02, 2026 19:40 UTC 956 49.97 0.0
April 02, 2026 19:30 UTC 952 49.86 0.0
April 02, 2026 19:20 UTC 940 47.57 0.0

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