ludus::graphics::rhi::GpuTiming¶

Struct

Copied GPU duration; the device-local clock has no correlation with CPU/display time.

Declared in modules/graphics/rhi/include/ludus/graphics/rhi/measurement.h

#include <ludus/graphics/rhi/measurement.h>

struct ludus::graphics::rhi::GpuTiming final

Fields¶

State¶

GpuTimingState ludus::graphics::rhi::GpuTiming::State = GpuTimingState::Empty

Explicit lifecycle/availability; DurationNanoseconds is meaningful only when Available.

Related types: GpuTimingState

Declared in modules/graphics/rhi/include/ludus/graphics/rhi/measurement.h

DurationNanoseconds¶

foundation::float64 ludus::graphics::rhi::GpuTiming::DurationNanoseconds = 0

Device-clock elapsed interval: the acquired frame for ArmGpuTiming, or the backend stage interval for a GpuPassTiming operation. Frame probes include graph/compute commands, clear and GPU stalls. WebGL may include idle gaps while the CPU feeds commands. Excludes readback/display latency; this is not a CPU timer or a sum of GPU busy cycles.

Related types: foundation::float64

Declared in modules/graphics/rhi/include/ludus/graphics/rhi/measurement.h

TickNanoseconds¶

foundation::float64 ludus::graphics::rhi::GpuTiming::TickNanoseconds = 0

Clock tick in nanoseconds when specified by the API; zero means unknown precision. This does not claim an accuracy bound or browser privacy-quantization interval.

Related types: foundation::float64

Declared in modules/graphics/rhi/include/ludus/graphics/rhi/measurement.h

ValidBits¶

foundation::uint32 ludus::graphics::rhi::GpuTiming::ValidBits = 0

Number of valid timestamp bits, or zero when not exposed by the API.

Related types: foundation::uint32

Declared in modules/graphics/rhi/include/ludus/graphics/rhi/measurement.h