VMPerfMon: Measure Real Usage Within A VM
Thursday, 24 August 2006 by Michel Roth
Richard Garsthagen, Technical Marketing Manager of VMware EMEA, published an interesting article about measuring the performance of ESX Server 3.0:

"Since the release of VI3, VMware has also introduced a GuestSDK. What they have done is open up VMware Tools so your own applications can talk to it and request information about the real outside world, especially about resource consumption. The nice thing about using the GuestSDK is that you can get information fast and very frequent. VMware support querying the VMware Tools for information by at least 4 times a second without major overhead and I have found out in practice you can go much higher then that."

Read more here.

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