VM Junkie

September 2, 2009

VMworld session DV3260 – Protocol Benchmarking and Comparisons

Filed under: citrix, vdi, view, vmware, vmworld — ermac318 @ 11:06 pm

I arrived to this session a bit late as well (noticing a theme here?) but a lot of the basics of this session were very similar to one last year on remote user experience in virtual desktops.

The gist of it is VMware has done some internal benchmarking using the PCoIP beta code (not final!) on vSphere and compared it to PortICA 2.1 – not the newest with HDX stuff, this was asked in a question pretty early and they were (deservedly) given some guff for that – and RDP (to an XP VM so only RDP 5.1).

They talked forever about their testing methodology. Essentially they tested three things:

  • A synthetic benchmark they created in-house called RPerf (which I saw last year in the similar session) that basically exercises a display protocol in as low-impact a way as possible to the underlying host (so you can measure how much CPU/memory the protocol takes and not how much CPU/RAM running the benchmark takes)
  • A 320×240, 25fps video with mixtures of different types of video that range from fairly static, pans, zooms, areas of motion on still backgrounds, and random static.
  • An AutoIT-based workload that tests actual VM performance in addition to the connection protocol.

The results were pretty favorable to PCoIP. In many cases it wasn’t the fastest, but it was never the worst. Sometimes it would barely lose to RDP in the LAN case, and barely lose to PortICA on the WAN case. It was never far behind the in any of the tests they showed results for, and in many cases was the fastest. The other big benefit was PCoIP had lower overhead in CPU and RAM than either PortICA or RDP. Tests were run entirely with the software PCoIP implementation – no hardware.

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2 Comments

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