Struct PrefetchPolicy 

pub struct PrefetchPolicy {
    pub budget: usize,
}

A reader-side SpillPolicy that materializes Paged entries near the front of the queue up to a byte budget. The writer-side dual of super::threshold::Threshold: the writer pages data out, the reader pages data back in — both through SpillPolicy::apply.

Fields

budget: usize

Maximum bytes to materialize per apply invocation.

Implementations

impl PrefetchPolicy

pub fn new(budget: usize) -> Self

Create a prefetch policy with the given byte budget.

Trait Implementations

impl SpillPolicy for PrefetchPolicy

fn apply(&mut self, queue: &mut VecDeque<QueueEntry>)

Optionally transforms some (ranges of) queue entries.