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Quicky hack to query gpu utilisation on linux with nvidia gpus.

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5990 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2021-07-23 19:11:33 +00:00
parent 9b38473295
commit bb4d5d1917
1 changed files with 54 additions and 0 deletions
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54
engine/client/cl_screen.c
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@ -1712,6 +1712,50 @@ void SCR_DrawNet (void)
R2D_ScalePic (scr_vrect.x+64, scr_vrect.y, 64, 64, scr_net);
}
void R_GetGPUUtilisation(float *gpu, float *mem)
{
#ifdef __linux__
static qboolean tried;
typedef void *nvmlDevice_t;
struct nvmlUtilization_s
{
unsigned int cpu;
unsigned int mem;
} util = {-1,-1};
static int (*nvmlDeviceGetUtilizationRates) (nvmlDevice_t device, struct nvmlUtilization_s *utilization);
static nvmlDevice_t dev;
if (!tried)
{
int (*nvmlInit_v2) (void);
int (*nvmlDeviceGetHandleByIndex_v2) (unsigned int index, nvmlDevice_t *device);
dllhandle_t *nvml;
dllfunction_t funcs[] =
{
{(void**)&nvmlInit_v2, "nvmlInit_v2"},
{(void**)&nvmlDeviceGetHandleByIndex_v2, "nvmlDeviceGetHandleByIndex_v2"},
{(void**)&nvmlDeviceGetUtilizationRates, "nvmlDeviceGetUtilizationRates"},
{NULL}
};
tried = true;
nvml = Sys_LoadLibrary("libnvidia-ml.so.1", funcs);
if (nvml)
{
if (!nvmlInit_v2())
if (nvmlDeviceGetHandleByIndex_v2(0, &dev))
dev = NULL;
}
}
if (dev)
nvmlDeviceGetUtilizationRates(dev, &util);
*gpu = util.cpu/100.0;
*mem = util.mem/100.0;
#else
*gpu = *mem = -1;
#endif
}
void SCR_DrawFPS (void)
{
extern cvar_t show_fps;
@ -1724,6 +1768,8 @@ void SCR_DrawFPS (void)
float frametime;
static float gpu=-1, gpumem=-1;
if (!show_fps.ival)
return;
@ -1733,6 +1779,8 @@ void SCR_DrawFPS (void)
lastfps = fps_count/(t - lastupdatetime);
fps_count = 0;
lastupdatetime = t;
R_GetGPUUtilisation(&gpu, &gpumem); //not all that accurate, but oh well.
}
frametime = t - lastsystemtime;
lastsystemtime = t;
@ -1743,6 +1791,12 @@ void SCR_DrawFPS (void)
R_FrameTimeGraph(frametime, show_fps.value-1);
sprintf(str, "%3.1f FPS", lastfps);
SCR_StringXY(str, show_fps_x.value, show_fps_y.value);
if (gpu>=0)
{
sprintf(str, "%.0f%% GPU", gpu*100);
SCR_StringXY(str, show_fps_x.value, (show_fps_y.value>=0)?(show_fps_y.value+8):(show_fps_y.value-1));
}
}
void SCR_DrawClock(void)