![]() ![]() As you can see, the 2D graphics score for VirtualBox linearly decreases as the number of cores increases. ![]() The attached image 'figure_2D.png' shows the results (higher score is better). Then I exported my VM to VMware Player, and I did the same benchmark. I have a very powerful machine, with 16 physical cores and 128 GB RAM, so I was able to plot the PassMark 2D score vs the number of cores (2, 4, 8 or 16) in the VM. I first believed it was due to some regression in recent versions of VirtualBox, so I did some benchmarks (using PassMark 9) in the VM with VirtualBox 5.2.x and 6.1.x, and I got the same performance drop for 2D graphics, whatever the VirtualBox version, when I increased the number of cores in the VM. To increase the performances of Adobe Lightroom in a Windows 7 VM, I tried recently to increase the number of cores in my Windows 7 VM and I noticed a serious drop in 2D graphics performances. ![]()
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