Struct Utilization 

pub struct Utilization {
    pub read_data_cycles: u64,
    pub program_data_cycles: u64,
    pub span_cycles: u64,
    pub reads: u64,
    pub programs: u64,
    pub erases: u64,
    pub worst_read_latency: u64,
    pub channels: u32,
}

The measured outcome of a plan.

Fields

read_data_cycles: u64

Read data-out cycles on the channels.

program_data_cycles: u64

Program data-in cycles on the channels (writes use the bus too, then bind the die on tPROG).

span_cycles: u64

reads: u64

programs: u64

erases: u64

worst_read_latency: u64

Worst-case observed read latency (beat − issue) across all reads.

channels: u32

Channel count — the aggregate bus can move channels data cycles per cycle.

Implementations

impl Utilization

pub fn value(&self) -> f64

Aggregate data-bus utilization ∈ [0,1]: read data-out + program data-in cycles ÷ the total bus capacity over the span (span × channels), since the channels run in parallel. A pure-write workload is tPROG-bound (die-bound), so its channel utilization is honestly low — the bus idles while the dies program.

Trait Implementations

impl Clone for Utilization

fn clone(&self) -> Utilization

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Utilization

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

Formats the value using the given formatter.

impl PartialEq for Utilization

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Utilization

impl StructuralPartialEq for Utilization