Calculating vSAN CPU usage
Article ID: 303646
Updated On:
Products
VMware vSAN
Issue/Introduction
In 7.0U1 and prior, the reported vSAN CPU usage is a sum of the percent used of each logical processor.
In 7.0U2 this was updated to do the division internally and report the percent of host CPU used.
In 7.0U2 this was updated to do the division internally and report the percent of host CPU used.
Environment
VMware vSAN 7.0.x
Resolution
To determine the vSAN CPU usage prior to 7.0U2 Do the following:
1) Get a reference point from the CPU performance graph.
2) Get the logical CPU cores for the host (reported in host summary).
3) Divide this number by the number of logical processors to get the percent of the host CPU used by vSAN. For example, if vSAN CPU usage reports 1510, on a host with 96 logical processors, the host CPU usage by vSAN is 1510 / 96 = 15.7%.
1) Get a reference point from the CPU performance graph.
2) Get the logical CPU cores for the host (reported in host summary).
3) Divide this number by the number of logical processors to get the percent of the host CPU used by vSAN. For example, if vSAN CPU usage reports 1510, on a host with 96 logical processors, the host CPU usage by vSAN is 1510 / 96 = 15.7%.
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