Struct ResourceEstimate 

#[non_exhaustive]
pub struct ResourceEstimate { /* private fields */ }

Predicted resources for a conversion plan. Every field is Option — fillers may model what they can and leave the rest None. wall_ms is already scaled to compute.cores() when produced by ConvertPlan::estimate_in; the internal threading-bottleneck model is in estimate_plan (docs/ESTIMATE.md). #[non_exhaustive], shape-compatible with zencodec::estimate::ResourceEstimate; build via new / unknown + the with_* setters.

Implementations

impl ResourceEstimate

pub fn unknown() -> Self

All-None estimate — for stages that don’t model their resource use.

pub fn new(peak_memory_bytes_est: u64, wall_ms: u64) -> Self

Estimate from the two essentials: typical peak memory + wall time. Buffer count left None; refine with with_intermediate_buffer_count.

pub fn with_intermediate_buffer_count(self, n: u32) -> Self

Full-image intermediate buffers held simultaneously, NOT counting input or output. Distinguishes 1-giant-buffer from N-medium-buffer plans for paging-pressure decisions.

pub fn peak_memory_bytes_est(&self) -> Option<u64>

Typical (≈ p50) estimated peak memory, bytes.

pub fn wall_ms(&self) -> Option<u64>

Predicted wall-clock ms. Already scaled to ComputeEnvironment::cores when produced by ConvertPlan::estimate_in. Rounded up, so sub-millisecond work reports Some(1) and Some(0) means genuinely zero work (empty plan / zero pixels) — schedulers summing many small conversions overestimate slightly rather than seeing a stream of zeros.

pub fn intermediate_buffer_count(&self) -> Option<u32>

Full-image intermediate buffers held simultaneously (input/output excluded). None when the planner can’t determine it.

Trait Implementations

impl Clone for ResourceEstimate

fn clone(&self) -> ResourceEstimate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ResourceEstimate

impl Debug for ResourceEstimate

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

Formats the value using the given formatter.

impl PartialEq for ResourceEstimate

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ResourceEstimate