Use ESXTOP to analyze ESXi host performance in vSphere 6
- [Voiceover] In this video, I'll demonstrate how to use…ESXTOP to monitor the performance of an ESXi Host.…I'll be using the Vmware hands-on lab environment…using the vSphere with Operations Management 6 lab.…Let's begin by clicking on PuTTY.…We can use PuTTY to establish an…SSH connection to any ESXi Host.…I'll choose esx-01A, hit Load, and then open.…Now we have a command prompt session open to the ESXi Host.…From here I'll simply type ESXTOP.…
By default, ESXTOP will display CPU statistics…for this ESXi Host.…You can see here we have a lot…of information on this screen.…If I only wanna see statistics related…to my virtual machines, I can simply type V,…and now the output will condensed to only show…processes related to running virtual machines.…At the top of the screen we can see statistics…such as PCPU USED, or PCPU utilization.…Displaying the actual usage statistics…for my physical processors.…
Here I can see the virtual machine Linux Micro 01a,…which is currently running six worlds.…This means that there are six separate threads…
VMware Certified Instructor Rick Crisci provides an overview of vSphere resource controls—shares, limits, and reservations—and their impact on performance and VSWP file size. Rick explains exactly what happens when virtual machines compete for resources, the role of swap files, and how resource controls help automate allocation.
In chapter 2, Rick shows how to manage performance with resource pools, including child pools. He explains the impact a reservation has on resource pools, and includes a demo on creating and configuring a resource pool. Chapter 3 is an overview of the vFlash architecture for leveraging SSD resources. Watch this chapter to learn how to configure vFlash reservations and to assign a reservation to a VM.
Note: This course maps to the Administer and Manage vSphere 6.x Resources domain of the vSphere Certified Professional 6—Data Center Virtualization (VCP6DCV) exam.
- Allocating memory and CPU
- Using ESXTOP
- Configuring reservations, limits, and shares
- Managing performance with resource pools
- Creating child and tiered resource pools
- Leveraging SSD resources with vFlash