GPUUsageMonitor Struct Reference

Reads GPU utilization % via Linux DRM fdinfo (same method as MangoHud). More...

#include <gpu_usage.h>

Data Fields
FILE *	streams [GPU_USAGE_MAX_FDS]
int	stream_count
uint64_t	prev_gpu_time_ns
uint64_t	prev_wall_time_ns
float	load_percent
char	driver [GPU_USAGE_MAX_KEY_LEN]
char	engine_key [GPU_USAGE_MAX_KEY_LEN]
bool	available

Detailed Description

Reads GPU utilization % via Linux DRM fdinfo (same method as MangoHud).

Scans /proc/self/fdinfo/ for DRM render node file descriptors, reads cumulative engine time (drm-engine-render for i915, drm-engine-gfx for amdgpu, etc.), and computes utilization as delta_gpu_time / delta_wall_time.

Supported drivers: i915, xe, amdgpu, nouveau.

Field Documentation

available

bool GPUUsageMonitor::available

driver

char GPUUsageMonitor::driver[GPU_USAGE_MAX_KEY_LEN]

engine_key

char GPUUsageMonitor::engine_key[GPU_USAGE_MAX_KEY_LEN]

load_percent

float GPUUsageMonitor::load_percent

prev_gpu_time_ns

uint64_t GPUUsageMonitor::prev_gpu_time_ns

prev_wall_time_ns

uint64_t GPUUsageMonitor::prev_wall_time_ns

stream_count

int GPUUsageMonitor::stream_count

streams

FILE* GPUUsageMonitor::streams[GPU_USAGE_MAX_FDS]

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The documentation for this struct was generated from the following file:

• include/gpu_usage.h