As a final part of our Data center virtualization initiative, We recently moved from a traditional hardware-based Intel Dialogic T1 dialer from Edulink to an Intel Dialogic SIP solution running 24 channels peered to our ShoreTel PBX.
Since Intel does not recommend running their Dialogic SIP software inside a VM since CPU time slicing and resource sharing dont play well with real time applications, we came up with a workaround.
Here are the custom settings we had to setup for the VM
CPU
1 vCPU
High Resource Shares
2000 MHz Reservation
Memory
2048 MB RAM
High Resource Shares
1024 MB Reservation
Hyperthreaded Core Sharing
Mode: Internal - This keeps the physical CPU core to just this VM
No Scheduling Affinity
Stats
Over the last month it has maxed out at
14.9% (444 MHz) CPU
10.99% (230MB) Memory
No reported issues since
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