Script or application to test multi CPU VMs and CPU ready ?

Hi all,

I'm about to deploy multiple (3 initially) SharePoint and SQL server VMs with 4x vCPU each so I wonder if anyone here know what is the best way to perform load testing which can generate CPU request ?

The idea is to saturate the VMs and observe the CPU ready % counter when those 3 VMs fully loaded.

If it is high in CPU ready I will make a case study to my manager to dedicate dual ESXi Hosts to run those 4x vCPU VMs rather than mix it up with the rest of smaller VMs.

Thanks.
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Senior IT System EngineerIT ProfessionalAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You could start with VMware vMark

http://www.vmware.com/products/vmmark

There is also the VMware Fling I/O Analyser but this is mainly for storage, but also CPU Stress tester

http://wahlnetwork.com/2013/01/14/stress-testing-cpu-loads-on-vsphere-with-stresslinux/

There is also Load Storm, see here

http://www.yellow-bricks.com/2010/04/09/generating-load/

There are many others, but those three are the easiest to use.

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Senior IT System EngineerIT ProfessionalAuthor Commented:
Thanks Andrew, so I guess some of them are free ?

What about the conclusion ? Is it correct to say that the large VMs with greater than 4x vCPU are better off running with the other large VMs rather than mixed the load ?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
All free.

I would not put like large VMs together, but this does depend on the host capacity and current performance.
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larstrCommented:
Is the point here to see how much load you Sharepoint environment can handle? Probably best to run a stress tool for Sharepoint?

Lars
Senior IT System EngineerIT ProfessionalAuthor Commented:
Yes so that I can ask my manager to dedicate one ESXi host for SharePoint VMs with 4x vCPU along with some other SQL server VMs.
Senior IT System EngineerIT ProfessionalAuthor Commented:
Thanks !
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