GoudaK Posted May 16, 2018 Share Posted May 16, 2018 I have build a Win10 VM using the guides from SpaceInvader One (thank you!) Despite following the steps in his videos I seem to be not getting even close to bare metal performance and I am unsure why. I have a 980ti, which was used in a Windows build prior to moving to unRAID on the same hardware and I seem to be getting a significant performance reduction. I've done some testing in PubG, pre VM I was able to run 4k @ 53 - 59 FPS. In the VM I get 25 - 32 FPS on the same settings. Dropping down to 1440p and on High I only get 45 - 47 FPS... I expected some performance drop however this is quite significant. CPU usage is always <50%, so its not a CPU bottleneck from what I can see. Its a Threadripper build with 1900x 4 cores 8 threads passed to the VM, 32gb DDR4 with 16gb passed to the VM. I tried emulating the CPU's as per advice in another thread and this absolutely killed CPU performance pegging it at 100%, effectively making the VM unusable. Does anyone have any other ideas? Quote Link to comment
david279 Posted May 16, 2018 Share Posted May 16, 2018 Run this in the terminal.watch grep \"cpu MHz\" /proc/cpuinfoMaybe your cores aren't using xfr. I found my ryzen never used the xfr boost while in UNRAID so I just oc my chip and set The performance governor to ondemand. Sent from my SM-G955U using Tapatalk Quote Link to comment
Symon Posted May 16, 2018 Share Posted May 16, 2018 (edited) 11 hours ago, GoudaK said: I have build a Win10 VM using the guides from SpaceInvader One (thank you!) Despite following the steps in his videos I seem to be not getting even close to bare metal performance and I am unsure why. I have a 980ti, which was used in a Windows build prior to moving to unRAID on the same hardware and I seem to be getting a significant performance reduction. I've done some testing in PubG, pre VM I was able to run 4k @ 53 - 59 FPS. In the VM I get 25 - 32 FPS on the same settings. Dropping down to 1440p and on High I only get 45 - 47 FPS... I expected some performance drop however this is quite significant. CPU usage is always <50%, so its not a CPU bottleneck from what I can see. Its a Threadripper build with 1900x 4 cores 8 threads passed to the VM, 32gb DDR4 with 16gb passed to the VM. I tried emulating the CPU's as per advice in another thread and this absolutely killed CPU performance pegging it at 100%, effectively making the VM unusable. Does anyone have any other ideas? I can also say that I think that the performance in games is not where it should be but unfortunately I have no comparison to bare metal performance... However, I can't play Witcher 3 without stutters on higher video settings (with a resolution of 3440 x 1440 and a GeForce 1080) and I think this should be possible with the hardware. (I also isolated CPU's for the gaming VM) 9 hours ago, david279 said: Run this in the terminal. watch grep \"cpu MHz\" /proc/cpuinfo Maybe your cores aren't using xfr. I found my ryzen never used the xfr boost while in UNRAID so I just oc my chip and set The performance governor to ondemand. Sent from my SM-G955U using Tapatalk I just testet this with Prime 95 and you are right, the frequency never went above 3.4 GHz (with on Demand / Performance) if this command shows the correct CPU frequency (I have a Threadripper 1950 which should be able to get up to 4 GHz). Maybe this is a general problem with the new AMD CPU's on UnRaid and the current kernel.. I wonder if there isn't another way to get this working without overclocking the base CPU frequency... ? Cheers Edited May 16, 2018 by Symon Quote Link to comment
david279 Posted May 16, 2018 Share Posted May 16, 2018 The only thing i could find is to OC it. Maybe when they go to a updated linux kernel xfr will work. I plan on going to a 2700x in the future and i read that boosting does work correctly with it in linux so it maybe a issue with the 1st gen ryzen stuff. 1 Quote Link to comment
Symon Posted May 18, 2018 Share Posted May 18, 2018 (edited) On 5/16/2018 at 4:44 PM, david279 said: The only thing i could find is to OC it. Maybe when they go to a updated linux kernel xfr will work. I plan on going to a 2700x in the future and i read that boosting does work correctly with it in linux so it maybe a issue with the 1st gen ryzen stuff. Thanks for the hint ? I OC mine now to 3.8 GHz (4 was unstable) and changed the setting to on demand as well. I hope the power consumption doesn't go up too much... Wired thing though .. I hope this gets fixed in newer kernel versions.. can't replace that expensive CPU this soon ? Edited May 18, 2018 by Symon Quote Link to comment
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