Geeking Out
0

Throughput Testing – VM’s between Hypervisors with SR-IOV

Throughput testing over 10 GbE has been an interesting exercise and Virtual Machines using the VMXNET3 adapter achieve impressive throughput while maintaining complete mobility around a VMware Cluster (vMotion/HA/DRS).

The following series of tests validate throughput when using VM’s configured to use SR-IOV…

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Geeking Out
0

Throughput Testing – VM’s between Hypervisors

My testing of Virtual Machine to Virtual Machine throughput demonstrated that with minimal tuning, considerable throughput can be obtained between virtual machines running on the same Hypervisor.

Clearly, the next step was to test throughput between Hypervisors… I had planned on running some initial tests, then based on the results, going “all out” and configuring SR-IOV as needed to obtain as close to wire speed as possible, but initial testing generated some great results…

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Geeking Out
2

Throughput Testing – Same Hypervisor and VM to VM

Just some weekend testing with two Windows 2012 R2 VM’s on the same Hypervisor and tests to see what throughput can be generated using the Microsoft NTttcp utility…

These are truly science experiments given there is no application that runs with a single IP stream between internal VM’s (such as App to DB) or to external users… By definition, every user connection would be a unique IP stream.

Overall, pretty straight forward to achieve multi gigabit performance out of the box and with more simultaneous streams, the aggregate bandwidth could easily exceed physical wire speed of the server.

The 64KB window is also a worst case scenario and certainly bigger window sizes can assist in improve throughput…

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Introduction, Software
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NSX vSphere 6.1 now GA

What’s New in NSX for vSphere 6.1.0

NSX vSphere 6.1 includes multiple new features as well as operations, consumption, and hardening enhancements…

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Education, VMWorld
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Hands On Labs Updated with 2014 Content

Appears 2014 Hands On Labs content is now online! Enjoy 😉

http://labs.hol.vmware.com

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