EC2专用实例是否共享RAM带宽? [英] Does EC2 dedicated instance share RAM bandwidth?

问题描述

如果我创建一个专用实例，并且该实例在多模服务器上启动，它是否共享自己CPU的RAM带宽?如果邻居运行一些占用内存带宽的任务会怎样?它会影响我的实例吗?

If I create a dedicated instance and if it starts on a multi die server, does it share RAM bandwidth of its own CPU? What happens if a neighbor runs some memory bandwidth consuming task? Does it affect my instance?

这在共享实例上如何?

存在哪种RAM寻址模式?仅在其自己的numa节点上，还是在多管芯服务器的所有记忆棒上交错?

What kind of RAM addressing mode is there? Only on its own numa node or interleaved on all memory sticks of multi-die server?

推荐答案

没有Amazon EC2实例共享任何内容.您永远不会受到吵闹的邻居"的影响.

No Amazon EC2 instances share anything. You will never be impacted by a "noisy neighbour".

在资源有限的地方(例如RAM，网络带宽，CPU)，为每个实例分配最大限制.资源永远不会过度分配，因此每个实例都可以访问其最大RAM，网络带宽等限制.

Where resources are limited (eg RAM, network bandwidth, CPU), each instance is allocated a maximum limit. Resources are never over-allocated, so each instance will have access to its maximum limit of RAM, network bandwidth, etc.

这适用于所有类型的实例. 专用实例的区别在于，只有一个AWS账户将使用主机.

This applies to all types of instances. The difference with a dedicated instance is that only one AWS account will be using the host computer.

所有资源都是虚拟化的，因此不存在底层硬件的指示，例如RAM寻址模式.

All resources are virtualized, so there is no indication of underlying hardware, such as RAM addressing modes.

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