![]() ![]() So now let’s talk more in detail about this metric. And it is the st value in the cpu section of the top command. The steal value for cpu metrics in linux show the percentage of time the virtual cpus (vcpus) are waiting for physical cpu time, this would be because the physical cpu is being used by other vms or processes in the physical host and the physical cpus are being shared by vms/processes. So, what is the steal value in cpu metrics? It is something engineers probably overlook and probably don’t even know, if I have known this a couple of months ago would have saved me some troubleshooting time. This is something I recently found and didn’t know it even existed, but it can be very useful when running in virtualized environments and helping us tune either the vm, or the physical host that runs the vms. In a previous post I talked about Taming the cpu metrics, while that post was an overview of cpu metrics I thought it was a good topic to emphasize on the cpu steal metric in linux hosts.
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