Enum PoolType 

pub enum PoolType {
    ExclusivePages {
        max_alloc_size: u64,
    },
    SlicedPages {
        page_size: u64,
        max_slice_size: u64,
        max_pool_size: Option<u64>,
    },
}

The type of memory pool to use.

Variants

ExclusivePages

Use a memory where every allocation is a separate page.

Fields

max_alloc_size: u64

The minimum number of bytes to allocate in this pool.

SlicedPages

Use a memory where each allocation is a slice of a bigger allocation.

Fields

page_size: u64

The page size to allocate.

max_slice_size: u64

The maximum size of a slice to allocate in the pool.

max_pool_size: Option<u64>

Hard cap on the total bytes of pages this pool may hold.

The effective cap is floor(max_pool_size / page_size) whole pages. If max_pool_size < page_size, the page size is shrunk to the (alignment-rounded) cap so the budget is honored with a single page. When the cap is reached and no free slice fits after coalescing, reserving returns IoError PoolCapacityExceeded instead of silently growing. None (the previous behavior) keeps unbounded growth.

Note: runtimes that create one memory management per stream (CUDA, HIP) apply the cap per stream.

Trait Implementations

impl Clone for PoolType

fn clone(&self) -> PoolType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PoolType

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

Formats the value using the given formatter.