Just wondering if anyone has any hints or tips for improving the performance of a Windows Guest running under a Linux Host. I just upgraded from Ubuntu 10.04 LTS to 12.04.2 LTS. I had my Windows XP Guest running very smoothly under 10.04 but under 12.04.2 the performance is much degraded. My perf benchmark is based on running Netflix "watch instantly" videos in my WinXP Guest. My old 10.04 system would allow these Netflix videos to run very smoothly with no noticeable video/audio interrupts. Under the 12.04.2 LTS Host the same video and audio is very choppy; basically unusable. I remember having similar perf issues when I first installed VMWare under 10.04; I made a kernel runtime parameter change that resolved the Guest perf problem, but I cannot recall what that parameter was (my mistake not writing it down). Or could it be a fundamental difference between Linux V2 and V3 kernels that would cause this? Hope not, as that would mean moving from 10.04 to 12.04.2 was not such a good idea for me.
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