Struct Predictor 

pub struct Predictor { /* private fields */ }

Predicts a job’s peak from the runs it learned.

Implementations

impl Predictor

pub fn new(rules: &Sizing) -> Predictor

A predictor that knows no run yet, with [sizing]’s margin and minimum runs.

pub fn learn(&mut self, run: &Ran, profile: &str, cap: u64, at: u64)

Learns a run of profile that finished at at (ms), having run under cap: its peak, and how it ended.

pub fn learn_cpu(&mut self, run: &Ran, profile: &str)

Learns the CPU a finished run of profile used, without its peak: as learn does, and alone for a run whose peak says nothing of its memory, as one sampled with page cache counted.

pub fn predict_cpu(&self, key: &Key, profile: &str, cap: u64) -> CpuPrediction

The CPU to reserve for a run of key in profile, whose cpus are cap millicores: the job’s average CPU (its CPU time over its run time), by the same fallbacks as memory without the margin. CPU is shared, not a kill limit, so neither a run at its cap nor copies of the job beside it change it.

pub fn mark(&mut self, run: &Ran, cap: u64, at: u64)

Learns only how a run ended, not its peak, as for a cancelled one: a run that met its cap (Ran::met_cap) makes its job unpredictable for UNPREDICTABLE_FOR, a peak past what it reserved makes its job reserve its largest peak for as long.

pub fn predict( &self, key: &Key, profile: &str, cap: u64, now: u64, copies: Copies, ) -> Prediction

The memory to reserve for a run of key in profile, whose cap is cap, at now (ms), with copies of it beside.

Trait Implementations

impl Clone for Predictor

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Predictor

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

Formats the value using the given formatter.