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Amazon AWS® descoperire proastă: supravânzarea

An image is worth more than words: left graph – Amazon EC2 T-family instance oversold, right graph – not oversold

Aceasta este utilizarea de monitorizare a CPU pe o instanță EC2 din Irlanda (t3a.xlarge). Două lucruri de observat:
-graficul din stânga are o medie de 40% de fundal alb (nu ajunge la plin 400% Înălțimea procesorului)
-graficul din stânga are maximum de 46% CPU fură (care este partea roșie, and it should not be above 2%).
In total: 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…

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