Solved

VMWare, esxtop

Posted on 2013-11-05
1
643 Views
Last Modified: 2013-11-14
I am using esxtop on my system:    I am running HT

I have three values

PCPU USED  (AVG)
PCPU UTIL (AVG)
CORE UTIL (AVG)

which of these three averages represent the utilization for the ESXi system.

I am guessing its the avg of PCPU UTIL ?

Thanks
0
Comment
Question by:Los Angeles1
1 Comment
 
LVL 119

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 39625846
Do you not remember you asked the same question here in March 2012, I remembered!

This is cut and paste from this question I answered in March 2012...

CPU

CPU load average of 1.00 means full utilisation of all CPU’s. A load of 2.00 means the host is using twice as many physical CPU’s as are currently available, likewise 0.50 means half are being utilised.

CPU Screen

PCPU USED(%) – Physical hardware execution context. Can be a physical CPU core if hyperthreading is unavilable or disabled or a logical CPU (LCPU) or SMT thread if hyperthreading is enabled. This displays PCPU percentage of CPU usage when averaged over all PCPUs.

PCPU UTIL(%) - Physical CPU utilised. (real time) Indicates how much time the PCPU was busy, in an unhalted state, in the last snapshot duration. Might differ from PCPU USED(%) due to power management technologies or hyperthreading.

If hyper threading is enabled these figures can be different, likewise if the frequency of the PCPU is changed due to power management these figures can also be adjusted.

As an example if PCPU USED(%) is 100 and PCPU UTIL(%) is 50 this is because hyper threading is splitting the load across the two PCPUs. If you then look in the vSphere client you may notice that CPU usage is 100%. This is because the vSphere client will double the statistics if hyperthreading is enabled.

In a dual core system, each PCPU is charged by the CPU scheduler half of the elapsed time when both PCPUs are busy.

Source
http://www.experts-exchange.com/Software/VMWare/Q_27637187.html

Also see my EE Article


HOW TO:  Performance Monitor vSphere 4.x or 5.0
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is an issue that we can get adding / removing permissions in the vCSA 6.0. We can also have issues searching for users / groups in the AD (using your identify sources). This is how one of the ways to handle this issues and fix it.
When rebooting a vCenters 6.0 and try to connect using vSphere Client we get this issue "Invalid URL: The hostname could not parsed." When we get this error we need to do some changes in the vCenter advanced settings to fix the issue.
Teach the user how to edit .vmx files to add advanced configuration options Open vSphere Web Client: Edit Settings for a VM: Choose VM Options -> Advanced: Add Configuration Parameters:
This Micro Tutorial walks you through using a remote console to access a server and install ESXi 5.1. This example is showing remote access and installation using a Dell server. The hypervisor is the very first component of your virtual infrastructu…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question