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Decrease gpu scheduling priority for NVIDIA

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Fixes #1031
This commit is contained in:
ns6089 2023-07-04 23:47:01 +03:00 committed by Cameron Gutman
parent c5bf78176e
commit 6dfe56518c
1 changed files with 5 additions and 1 deletions
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6
src/platform/windows/display_base.cpp
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@ -510,7 +510,11 @@ namespace platf::dxgi {
PD3DKMTSetProcessSchedulingPriorityClass fn =
(PD3DKMTSetProcessSchedulingPriorityClass) GetProcAddress(gdi32, "D3DKMTSetProcessSchedulingPriorityClass");
if (fn) {
status = fn(GetCurrentProcess(), D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME);
// Set scheduling priority to "high" for NVIDIA, or to "realtime" for other gpu vendors
// As of 2023.07, NVIDIA driver has unfixed bug(s) where "realtime" can cause unrecoverable encoding freeze or outright driver crash
// This issue happens more frequently with HAGS, in DX12 games or when VRAM is filled close to max capacity
// Track OBS to see if they find better workaround or NVIDIA fixes it on their end, they seem to be in communication
status = fn(GetCurrentProcess(), adapter_desc.VendorId == 0x10DE ? D3DKMT_SCHEDULINGPRIORITYCLASS_HIGH : D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME);
if (FAILED(status)) {
BOOST_LOG(warning) << "Failed to set realtime GPU priority. Please run application as administrator for optimal performance.";
}