Struct PrefetcherConfig 

pub struct PrefetcherConfig {
    pub max_read_window_size: usize,
    pub sequential_prefetch_multiplier: usize,
    pub max_forward_seek_wait_distance: u64,
    pub max_backward_seek_distance: u64,
    pub initial_request_size: usize,
}

Fields

max_read_window_size: usize

Maximum size of the read window

sequential_prefetch_multiplier: usize

Factor to increase the request size by whenever the reader continues making sequential reads

max_forward_seek_wait_distance: u64

The maximum amount of unavailable data the prefetcher will tolerate during a seek operation before resetting and starting a new S3 request.

max_backward_seek_distance: u64

The maximum distance the prefetcher will seek backwards before resetting and starting a new S3 request. We keep this much data in memory in addition to any inflight requests.

initial_request_size: usize

Size of the initial request. This request, of size possibly smaller than part_size, is made to lower the latency in small-random-reads usage pattern. If set to 0, initial request is skipped.

Trait Implementations

impl Clone for PrefetcherConfig

fn clone(&self) -> PrefetcherConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrefetcherConfig

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

Formats the value using the given formatter.

impl Default for PrefetcherConfig

fn default() -> Self

Returns the “default value” for a type.

impl Copy for PrefetcherConfig