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MTE Performance under XEN

Posted by vipcarrier on Sun, 10/11/2009

We have two XEN nodes each node has 16 cores and 32 GB of ram, and behind it is fiber channel storage.

We want to install MTE on a top of XEN... but before we will try this can someone tells me how is performance? Is there any additional configurations need to be made to XEN host?

How much RAM should we give to MTE system and how many cores? How many end points the system would be able to support? How many simultenius calls would the system be able to support?

Please advice…


Submitted by eeman on Sun, 10/11/2009 Permalink

Its not going to work. At first it will work well enough to fool you into thinking its ok. As time progresses it becomes apparent that playing audio files, transcoding, and conferencing just dont work inside a virtual machine. There is no realtime-clock (INT 8) and as a result things get pretty sloppy. Basically regardless of how many cores or how much ram you throw at a VM, you are only getting 1/10th the capabilities you would on the same amount of ram and processors of a non virtualized server.