Struct SimReport 

pub struct SimReport {

    pub ticks: u32,
    pub episodes: u32,
    pub misses: u32,
    pub miss_ticks: u32,
    pub stall_ticks: u32,
    pub min_slack_ticks: Option<i64>,
    pub min_slack_millis: i64,
    pub worst_miss: Option<WorstMiss>,
    pub needed_evictions: u32,
    pub reads: u32,
    pub seeks: u32,
    pub sectors_read: u64,
    pub wasted_sectors: u64,
    pub cancelled: u32,
    pub failed_reads: u32,
    pub evictions: u32,
    pub drive_busy_micros: u64,
    pub run_micros: u64,
    pub peak_pages: u32,
    pub max_fragmentation_permille: u32,
    pub protected_full: u32,
    pub pages_moved: u32,
    pub max_step_work: u32,
    pub total_work: u64,
    pub checksum: u32,
}

What a simulation found.

Fields

ticks: u32

Ticks simulated (route length).

episodes: u32

Times a region became needed.

misses: u32

Episodes where the region was not resident when needed (a stall).

miss_ticks: u32

Region-ticks needed but not resident.

stall_ticks: u32

Ticks with at least one unmet need (the player would be held).

min_slack_ticks: Option<i64>

Smallest slack over all episodes, in ticks: how long before it was needed the region was resident (negative: late). None without episodes.

min_slack_millis: i64

The same in milliseconds (0 without episodes).

worst_miss: Option<WorstMiss>

The worst miss, if any.

needed_evictions: u32

Regions evicted while the player needed them (must be 0).

reads: u32

Reads started on the drive.

seeks: u32

Reads that needed a seek.

sectors_read: u64

Sectors read.

wasted_sectors: u64

Sectors of regions evicted before the player ever needed them.

cancelled: u32

Reads cancelled for a demand.

failed_reads: u32

Reads that failed.

evictions: u32

Regions evicted.

drive_busy_micros: u64

Microseconds the drive was busy.

run_micros: u64

Microseconds simulated.

peak_pages: u32

Most pages in use at once.

max_fragmentation_permille: u32

Worst free-space fragmentation seen, in permille.

protected_full: u32

Requests that found no room (summed over steps).

pages_moved: u32

Pages moved by compaction.

max_step_work: u32

Most bookkeeping work units in one step.

total_work: u64

Work units over the run.

checksum: u32

A fingerprint of every admission, eviction and request, for determinism checks.

Implementations

impl SimReport

pub fn drive_utilization_permille(&self) -> u32

Share of the run the drive was busy, in permille.

Trait Implementations

impl Clone for SimReport

fn clone(&self) -> SimReport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimReport

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

Formats the value using the given formatter.

impl Default for SimReport

fn default() -> SimReport

Returns the “default value” for a type.

impl PartialEq for SimReport

fn eq(&self, other: &SimReport) -> 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 Eq for SimReport

impl StructuralPartialEq for SimReport