On February 28, 2016 at 02:00:54, ben j (btpprogr...@gmail.com(mailto:btpprogr...@gmail.com)) wrote: > > > I've narrowed it down to a cpu issue, I was giving 6 cores (I only have 6) to > the VM and from looking at htop it seems to start lagging from major cpu > spikes. For a moment Skype spikes to 250% cpu usage when it launches which > would explain why it triggered the issue. Is there a steadfast rule for cpu > allocation to gaming VM's? So far 6 has been unstable, 3 has always been > choppy on boot, and 4 seems fairly stable but has still occasionally gotten > choppy. I'm currently testing 5 but I expect it will be worse than 4. I'm > also only currently running at 3.3GHz and could easily overclock to ~3.9 if > that would make a big difference. I find it difficult to believe that it's > not just an optimization issue though since I've never had any issues with > this cpu before. > >
Hi Ben, My first thought is, have you tried enabling MSI on the guest? [1] What kernel is the host running? Although kernel 4.4.x should fix the utterly slow boot, my guest still suffer from it when I set the guest memory > 8 GB. Which when I set the host kernel back to 4.1.x, I never encountered this issue. Another issue that I noticed with kernel 4.4.x, is that the CPU usage when playing any sorts of audio, be it from games or even iTunes loads a very high CPU usage (around 70%), whilst quite low at kernel 4.1.x (around 30%). So if your kernel is at 4.4.x now, can you try using 4.1.x? [1] http://vfio.blogspot.com/2014/09/vfio-interrupts-and-how-to-coax-windows.html Best regards, Okky Hendriansyah
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