Struct FrameMetrics 

pub struct FrameMetrics {
    pub tracked_chunks: usize,
    pub upload_in_flight_bytes: u64,
    pub pending_frame_submissions: u32,
    pub last_submission_id: u64,
    pub submission_timestamp_ns: u64,
    pub completion_timestamp_ns: Option<u64>,
    pub derived_cache_gpu_bytes: u64,
    pub derived_cache_peak_gpu_bytes: u64,
    pub physical_buffer_bytes: u64,
    pub physical_texture_bytes: u64,
    pub physical_total_bytes: u64,
    pub physical_peak_bytes: u64,
}

Stable, allocation-free counters captured with a frame report.

Fields

tracked_chunks: usize

Provider chunks tracked by the GPU residency layer.

upload_in_flight_bytes: u64

Upload bytes still protected by GPU fences.

pending_frame_submissions: u32

Presentation submissions not yet reported complete by the GPU.

last_submission_id: u64

Monotonic identifier for the most recently submitted frame.

submission_timestamp_ns: u64

Submission timestamp in the engine monotonic clock, in nanoseconds: host time when the frame’s encoder reached the queue. CPU cost of the frame is separately observable as the duration of the native render call; this is not device execution time.

completion_timestamp_ns: Option<u64>

Host timestamp when the last submission’s fence was observed complete, in the same monotonic clock. None while the frame is pending, and None on native backends because the engine only observes the fence on the browser path; even when set, this is host-observation latency, not exact device completion or GPU execution time. GPU execution time requires timestamp queries via the profiling path.

derived_cache_gpu_bytes: u64

Retained recomputable device bytes.

derived_cache_peak_gpu_bytes: u64

Peak recomputable device bytes since engine construction.

physical_buffer_bytes: u64

Live physical GPU buffer bytes owned through the device boundary.

physical_texture_bytes: u64

Live physical GPU texture bytes owned through the device boundary.

physical_total_bytes: u64

Total live physical GPU bytes owned through the device boundary.

physical_peak_bytes: u64

Peak live physical GPU bytes since device construction.

Trait Implementations

impl Clone for FrameMetrics

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FrameMetrics

impl Debug for FrameMetrics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FrameMetrics

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FrameMetrics

impl PartialEq for FrameMetrics

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FrameMetrics