加速网络 [英] Accelerated Networking

问题描述

加速网络的价格几乎是VM价格的两倍？

我知道答案将"取决于要求" 

它基本上是面向客户的app iis web服务器，sql server - 两者都位于同一地区， 

每个月大约有3000名申请人申请工作 

或者问一下所有用例会加速网络的问题有什么不同才会真正有用\有益并且额外费用会有很好的投资回报率？

解决方案

您认为使用加速网络的成本是成本的两倍？使用加速网络所需要做的就是拥有支持的VM大小。使用加速网络没有实际的额外成本。但是在某些情况下，它不需要
因此它不能直接使用。 

https://docs.microsoft.com/en-us/azure/virtual-network/create-vm-accelerated- networking-cli

我们还在上面的文档中提到了好处

好​​处

• 较低的延迟/较高的每秒数据包数（pps ）： 从数据路径中删除虚拟交换机会删除数据包在主机中花费的时间用于策略处理，
  增加了可以在VM内处理的数据包数量。
• 减少抖动： 虚拟交换机处理取决于需要应用的策略数量和CPU的工作负载正在进行处理。卸载
  对硬件的策略强制执行通过将数据包直接传送到VM，删除主机到VM通信以及所有软件中断和上下文切换来消除这种可变性。
• 降低CPU利用率： 绕过主机中的虚拟交换机会降低CPU利用率，从而处理网络流量。

is Accelerated networking worth double the price of the VM almost ?

i know the answer will be 'depend on the requirements' 

its basically a customer facing app iis web server, sql server - both located in the same region , 

roughly 3000 applicants apply for jobs every month 

or to ask the question a little different in what all use cases would accelerated networking be really useful \ beneficial and would be good ROI on the extra cost?

解决方案

Where are you seeing using Accelerated Networking is double the cost? All you need to do to utilize accelerated networking is have a supported VM size. There is not an actual additional cost to use accelerated networking. However in some cases it is not needed hence it is not something that works straight out of the box. 

https://docs.microsoft.com/en-us/azure/virtual-network/create-vm-accelerated-networking-cli

We also call out the benefits in the above doc

Benefits

• Lower Latency / Higher packets per second (pps): Removing the virtual switch from the datapath removes the time packets spend in the host for policy processing and increases the number of packets that can be processed inside the VM.
• Reduced jitter: Virtual switch processing depends on the amount of policy that needs to be applied and the workload of the CPU that is doing the processing. Offloading the policy enforcement to the hardware removes that variability by delivering packets directly to the VM, removing the host to VM communication and all software interrupts and context switches.
• Decreased CPU utilization: Bypassing the virtual switch in the host leads to less CPU utilization for processing network traffic.

这篇关于加速网络的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！