July 18, 20232 yr Hi. I run a Win10 VM predominantly used for some statistical analysis apps. In order to increase performance, I'm looking to feed it with: - a RAID0 NVME pair using two NVME drives I have spare - a large RAM disk (my server has 128GB). RAID0..... I have the unassigned devices plugin. Am I best to make the RAID0 pair and use unassigned devices to make it available to the Win10 VM? Or somehow make a share using the RAID0 pair only (putting the RAID0 pair into a new cache pool and having a share only using that)? All tips/links to best how to posts appreciated. RAM disk.... Best to allocate more ram (say 96GB) to the Win10 VM and use a Windows RAM disk application to create say a 64GB RAM disk? ....or do something within Linux/Unraid to create a RAM disk and present it to the VM? All pointers to best practice/example posts on what to do would be much appreciated. Thanks.
July 19, 20232 yr Author OK - I've set up 2x NVME in a RAID0 pool and made this available to my Windows VM as a disk share. The write speed when copying files in Win10 is crazy low. Around 29 Mb/s. 2x Samsung Evo 870 in RAID 0 on a PCI4 threadripper build. The drives max out at around 500Mb/s. I'm not expecting that but 5% of their max?
July 19, 20232 yr On 7/18/2023 at 7:22 PM, bdbd said: RAM disk.... Best to allocate more ram (say 96GB) to the Win10 VM No, it already a RAM disk. On 7/18/2023 at 7:22 PM, bdbd said: use a Windows RAM disk application to create say a 64GB RAM disk? Below are the simple test for create qcow2 30GB image in /tmp ( RAM disk ) for testing, VM only assign 4 cores and 6GB memory. If compare a baremetal Windows on a NVMe ( not top class ), not too bad just worst in 4K test in VM. Pls align the test setting, so that they are same or similar. Edited July 19, 20232 yr by Vr2Io
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