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„Amazon AWS®“ blogas atradimas: Overselling

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

Tai yra CPU stebėjimo naudojimas EC2 egzemplioriuje Airijoje (t3a.xlarge). Du dalykai, į kuriuos reikia atkreipti dėmesį:
-kairiajame grafike yra vidurkis 40% balto fono (jis nepasiekia pilno 400% CPU aukštis)
-kairiajame grafike yra maksimalus 46% CPU vagystė (kuri yra raudonoji dalis, 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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