Struct AutoCountPlan 

pub struct AutoCountPlan {
    pub path: AutoCountPath,
    pub workers: usize,
    pub chunk_size: usize,
}

Auto execution plan.

Fields

path: AutoCountPath

workers: usize

chunk_size: usize

Implementations

impl AutoCountPlan

pub const CACHE_MIN_BATCH: usize = 8

Batch-size threshold where cached pipeline becomes preferable.

pub const POOL_MIN_BATCH: usize = 4_096

Batch-size threshold where pooled parallel execution becomes worthwhile.

pub const POOL_MIN_CHUNK_PER_WORKER: usize = 1_024

Keep enough work per worker to avoid coordination overhead.

pub const POOL_MAX_WORKERS: usize = 16

Hard cap to avoid over-fragmenting a single request.

pub fn for_driver(batch_len: usize) -> Self

pub fn for_pool( batch_len: usize, max_connections: usize, available_slots: usize, ) -> Self

Trait Implementations

impl Clone for AutoCountPlan

fn clone(&self) -> AutoCountPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AutoCountPlan

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

Formats the value using the given formatter.

impl PartialEq for AutoCountPlan

fn eq(&self, other: &AutoCountPlan) -> 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 AutoCountPlan

impl Eq for AutoCountPlan

impl StructuralPartialEq for AutoCountPlan