The practical effects of Hyper-V on gaming are being explored.
The practical effects of Hyper-V on gaming are being explored.
I recently tested PCMark 10 and 3DMark prior to and after adding the Hyper-V role on Windows 10 Enterprise 1909. The data indicates minimal performance drop when installed. Hardware: Core i7 9700k, 32 GB RAM, GPU NV 1080. Before scores – PCMark 6680, 3DMark 7501. After installation: PCMark 6591 (1.34% loss), 3DMark 7477 (0.32% loss). I can't predict how a weaker machine would perform.
HyperV operates without additional software, running directly on hardware. When activated, the entire Windows environment functions within a virtual machine. This feature is described in the Hyper-V documentation as the Root Partition.
I noticed a significant rise in memory latency while running Hyper-V, which affects the smooth performance of games at low frame rates. Using WSL2 with a level 1 hypervisor isn’t viable for gaming on my desktop; I prefer a VM or switching to Linux. The graph below demonstrates higher latency—over 70ns—when Hyper-V is enabled.
Your setup appears to be using a distinct virtualization method for Linux, which impacts gaming performance due to increased memory latency. It’s possible the issue stems from checking or toggling Hyper-V in Windows settings. Since you rely on Docker and have a Ryzen machine, you may need to adjust your environment to minimize latency. For testing memory latency, AIDA64 offers a free trial at https://www.aida64.com/downloads; choose the appropriate version based on your needs.
Discovered this tool from Intel for assessing memory latency: https://software.intel.com/content/www/u...ecker.html Applying the command helps confirm memory latency.
I'm not sure why, but lately I've observed pops and breaks in audio when playing media, plus sudden FPS drops in games. It might be a recent update that caused issues, though I checked using LatencyMon and found vmswitch.sys to be the culprit. Apparently disabling all virtual adapters tied to Hyper-V in network settings resolved the problem—no VMs, Docker, or WSL needed, just turning on the network adapter fixed it. I suspect Hyper-V has a significant impact, even when inactive; since I have WSL2 and Docker Desktop installed regularly, I've noticed frequent microlags lately, possibly linked to Hyper-V. I'm trying to find a better alternative but haven't found one that's easy to set up.
same here. running a 20-core Xeon server with Hyper-V works fine when no machines are active, but launching a VM causes extreme high DPC latency. The server becomes very choppy with random lag spikes. I removed Hyper-V and recreated the VM in VirtualBox—no lag and low DPC latency now. https://www.resplendence.com/latencymon. Checked if it was due to Spectre or Meltdown patches. No changes made after turning mitigation off.
Incorrect. Docker Desktop supports WSL2, but it relies on the "Virtual Machine Platform" feature, which depends on a running hypervisor. You'll see that after changing bcdedit /set hypervisorlaunchtype off, Docker Desktop won't start correctly.
It's a bit of a nostalgic thread, but it's one of the few conversations online about WSL 2 and its impact on gaming performance. Has anything changed with Windows 11? I noticed some older discussions mentioning latency measurements from latencymon that didn't show much extra delay when WSL 2 was active, especially with NVIDIA drivers being the main contributor. Most talks seem focused on audio and video work where delays matter most. How does this relate to gaming specifically?
I believe this could affect performance differently than VMWARE or Virtual Box since HyperV runs each VM alongside the host partition, enhancing VM speed at the cost of the host. In contrast, Virtual Box and similar tools keep the host running directly on hardware, which may limit VM efficiency but keeps the OS closer to the physical machine.