Interpreting ESXtop Statistics #vmware #esx. Introduction Section CPU Section Worlds and Groups Section PCPUs Section Global Statistics Section. VMware: Interpreting esxtop Statistics. Leave a reply Section Adapter, Device, VM screens Section I/O Throughput Statistics. The paper is titled “Interpreting esxtop Statistics“. “esxtop” is an utility provided by VMware which can be used to perform monitoring and.

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A sustained high value for the QUED counter signals a storage bottleneck which may be alleviated by increasing the queue depth.

Creating Disk IO Excel graphics with ESXTOP

Percentage of active guest physical memory in the near future. Suppose that CPU frequency is fixed to base frequency, e. Because there are quite a number of instances related to disk statistics, let’s list a few examples below. Response time is the sum of the time spent in queues in the storage stack and the service time spent by each resource in servicing the request. So, it is possible interlreting even though you have enough free memory, a new VM cannot power on due to the violation of memory reservation.

When hyper-threading is unavailable or disabled, a PCPU is the same as a core.

Interpreting esxtop Statistics |VMware Communities

NWLD is the number of worlds in the group. Inside each VM, the guest OS maps the virtual memory to its physical memory. This is the total swap target of all the groups.

knterpreting The sum of the active and queued commands gives the total number of outstanding commands issued by that virtual machine. Most of time, the other worlds are waiting for events. You may have set a low “limit”, which causes swapping. DuiNEd 19 november Interactive command ‘d’ can be used to switch to the adapter screen, ‘u’ for the device screen, and ‘v’ for the vm screen. One VM has one corresponding group, so they are equivalent to per-VM statistics.


If the port is connected by a virtual NIC, i. Why is “managed” memory less than the sum of “vmk”, “other” and “free” in the PMEM line? It is possible to drill down to expanded views of this data. VMKernel may use some of the managed memory. For a user world, it includes not only the virtual memory that is interpretign by statisticw machine memory, but also the reserved backing store size. Ballooning may cause guest swapping.

Tweets Time for some reading theyearofvdi vdidesignguide https: Due to the similarities in the counters of the three disk screens, this section discusses the counters without distinguishing the screens.

In September Dell announced to have completed the eesxtop of Quest Software, a Californian company with an history in systems management, security, business intelligence and, falling back in our….

Rate at which memory is being swapped out to disk. iterpreting

It is very bad for VM performance. The ESX storage stack allows these virtual disks to be statistiics on any of the multiple storage options available. This may happen even when there is plenty of free CPU cycles. Net income, from continuing operations,….


If this intermediate data also matches DAVG values, it is likely that the storage is under-configured for the application. It means the VM’s guest physical memory is not resident in machine memory, but on disk. The percentage of time the VCPU world is in idle loop. The arithmetic mean of CPU loads in 1 minute, 5 minutes, and 15 minutes, based on 6-second samples. To give two examples. The monitor maps guest physical memory to machine memory.

In the above equation, we put this part under “vmkernel usage”. The “idle” group is the container for the idle worlds, each of which corresponds stztistics one PCPU. Let’s use a few examples to illustrate this.

Beside fancy definitions, one of the most relevant perks of this release…. Introduction Esxtop allows monitoring and collection of data for all system resources: The counter names in esxtop batch mode are different from the ones in interactive mode listed in the sections above. ESX can make use of the HyperThreading technology, so, the performance counters takes HyperThreading into consideration as well.

This is the total ballooned targets of the VMs. Over time, this average will approximate the amount of active memory for the VM. If the VM suffers from ballooning, “sched. Please check what causes ballooning and take appropriate actions to reduce memory pressure.