亞馬遜 AWS® 錯誤發現: overselling

這是愛爾蘭 EC2 實例的 CPU 監控使用方式 (t3a.xlarge). 需要注意的兩件事:
-the left graph has an average of 40% 白色背景 (它沒有達到全部 400% CPU 高度)
-the left graph has a maximum of 46% CPU 竊取 (這是紅色部分, and it should not be above 2%).
總計: 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…