First, a solid statement: virtualization has always levied a CPU “tax.” Early on, this was very high, recently not so much. Probably the most comprehensive recent non-vendor benchmark of performance vs. native is AnandTech’s, which recently showed anywhere from a 2% to a 7% CPU tax on a fully loaded system running mixed workload 4-CPU virtual machines on recent hardware.
via engineyard.com
This blog post from Engine Yard shows the evolution of x86 virtualization technology and tackles the CPU tax imposed by Virtualization technologies over time. A must read if you are implementing big virtualization projects.
Comments (1)
Thanks for the shout out, and glad you liked the piece! We’ll work on brainstorming for more virtualization content in the future
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