Mirrored_Repos/LookingGlass
1
0
Fork 0
mirror of https://github.com/gnif/LookingGlass.git synced 2025-10-15 11:58:12 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[host] windows: make D3DKMTSetProcessSchedulingPriorityClass global

Browse Source 
Testing shows that `D3DKMTSetProcessSchedulingPriorityClass` has a
positive performance impact for NvFBC as well as DXGI, as such always
try to boost the priority for the windows host.
This commit is contained in:
Geoffrey McRae
2021-07-10 12:27:30 +10:00
parent 041b95507d
commit 78b8e2a73c
2 changed files with 38 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
host/platform/Windows/src/platform.c
View File

@@ -467,6 +467,41 @@ finish:
return result;
}
void boostPriority(void)
{
typedef enum _D3DKMT_SCHEDULINGPRIORITYCLASS
{
D3DKMT_SCHEDULINGPRIORITYCLASS_IDLE,
D3DKMT_SCHEDULINGPRIORITYCLASS_BELOW_NORMAL,
D3DKMT_SCHEDULINGPRIORITYCLASS_NORMAL,
D3DKMT_SCHEDULINGPRIORITYCLASS_ABOVE_NORMAL,
D3DKMT_SCHEDULINGPRIORITYCLASS_HIGH,
D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME
}
D3DKMT_SCHEDULINGPRIORITYCLASS;
typedef NTSTATUS WINAPI (*PD3DKMTSetProcessSchedulingPriorityClass)
(HANDLE, D3DKMT_SCHEDULINGPRIORITYCLASS);
HMODULE gdi32 = GetModuleHandleA("GDI32");
if (!gdi32)
return;
PD3DKMTSetProcessSchedulingPriorityClass fn =
(PD3DKMTSetProcessSchedulingPriorityClass)
GetProcAddress(gdi32, "D3DKMTSetProcessSchedulingPriorityClass");
if (!fn)
return;
if (FAILED(fn(GetCurrentProcess(), D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME)))
{
DEBUG_WARN("Failed to set realtime GPU priority.");
DEBUG_INFO("This is not a failure, please do not report this as an issue.");
DEBUG_INFO("To fix this, install and run the Looking Glass host as a service.");
DEBUG_INFO("looking-glass-host.exe InstallService");
}
}
bool app_init(void)
{
const char * logFile = option_get_string("os", "logFile" );
@@ -490,6 +525,9 @@ bool app_init(void)
// get the performance frequency for spinlocks
QueryPerformanceFrequency(&app.perfFreq);
// try to boost the scheduler priority
boostPriority();
return true;
}