Amazon AWS® slechte ontdekking: Overselling

Dit is het CPU-bewakingsgebruik op een EC2-instantie in Ierland (t3a.xgroot). Twee dingen om op te merken:
-the left graph has an average of 40% van witte achtergrond (het bereikt niet de volledige 400% CPU-hoogte)
-the left graph has a maximum of 46% CPU stelen (dat is het rode gedeelte, and it should not be above 2%).
In totaal: a maximum of 86% CPU power is GONE.

For the avoidance of the doubt: the EC2 instance was stopped and started again around 6:30AM on the left graph, so the instance was running on a new hardware from 6:30AM. This has been done to also rule out any hardware or hypervisor problem (but it did not change anything).

Conclusion: it has been confirmed that Amazon AWS® is overselling its T-family instances since November 2022, confirmed again in March 2023, and in June 2024…