shad0wca7 Posted September 19, 2019 Share Posted September 19, 2019 I have 2 Xeon E5 2690s (eight core, 2.9Ghz) and 384 ram so not short of resources. I'm trying UnRAID (used to ESXI) as it seems to be interesting and I've seen a fair bit of buzz about it lately so wanted to give it a go before I purchase. However I'm having some serious issues with performance on VMs. I first noticed that the Linux VM felt rather laggy and today have installed Windows 10 which will be my main VM (headless) for some development and gaming. My Windows 10 VM is configured with 8 pinned cores (16 threads) and 16gb ram - core 8 onwards so it should all be on one physical CPU. I've run a Cinebench R20 score which was disappointing - 684. I've also run a Geekbench 5 score - an appalling 235 single and 1841 multicore. For context, I have another machine using an AMD Opteron 3280 (8 core, 2.4ghz) running Windows 10 with only 4 cores assigned through ESXI that pulls in 384 on single core... Sometime seems badly wrong? Diagnostics attached. powerpig-diagnostics-20190919-1816.zip Quote Link to comment
shad0wca7 Posted September 19, 2019 Author Share Posted September 19, 2019 I think I've found why... for some reason the CPUs are clocking well below where they should (even though Windows reports it's pegged at 2.9Ghz). Whilst running Geekbench in Windows, if I do a cat /proc/cpuinfo | grep MHz: root@PowerPig:~# cat /proc/cpuinfo | grep MHz cpu MHz : 1199.905 cpu MHz : 1199.911 cpu MHz : 1199.913 cpu MHz : 1199.919 cpu MHz : 1199.899 cpu MHz : 1199.899 cpu MHz : 1199.894 cpu MHz : 1199.908 cpu MHz : 1199.895 cpu MHz : 1199.925 cpu MHz : 1199.909 cpu MHz : 1199.907 cpu MHz : 1199.911 cpu MHz : 1199.905 cpu MHz : 1199.905 cpu MHz : 1199.907 cpu MHz : 1199.897 cpu MHz : 1199.887 cpu MHz : 1199.900 cpu MHz : 1199.910 cpu MHz : 1199.934 cpu MHz : 1199.902 cpu MHz : 1199.906 cpu MHz : 1199.893 cpu MHz : 1199.889 cpu MHz : 1199.903 cpu MHz : 1199.907 cpu MHz : 1199.910 cpu MHz : 1199.909 cpu MHz : 1199.910 cpu MHz : 1199.911 cpu MHz : 1199.912 Now to figure out why.. Quote Link to comment
m0ngr31 Posted September 22, 2019 Share Posted September 22, 2019 That much RAM might cause an issue with hugepages. Could also be NUMA issues. Quote Link to comment
shad0wca7 Posted September 22, 2019 Author Share Posted September 22, 2019 I think I’ve got it figured out - I was using PSU2 and idrac gave a critical power warning (wasn’t happy that PSU1 was either not present or not being used) which I believe was causing it to throttle. I’ve switched to PSU1 and changed the profile to “performance” in BIOS and I’m getting the performance now that I’d expect. Quote Link to comment
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