Struct FastPathCacheManager 

pub struct FastPathCacheManager {
    pub caches: [SizeClassCache; 52],
    pub config: FastPathCacheConfig,
    pub fast_path_allocations: usize,
    pub fast_path_deallocations: usize,
    pub slow_path_allocations: usize,
}

Thread-local fast-path cache manager.

This structure manages multiple per-size-class caches, allowing threads to satisfy allocation requests from thread-local pools without contention on global allocator structures.

Fields

caches: [SizeClassCache; 52]

Per-size-class caches.

config: FastPathCacheConfig

Configuration for this cache manager.

fast_path_allocations: usize

Total allocations served from fast-path.

fast_path_deallocations: usize

Total deallocations through fast-path.

slow_path_allocations: usize

Fallback allocations (slow path).

Implementations

impl FastPathCacheManager

pub fn new() -> FastPathCacheManager

Creates a new fast-path cache manager with default configuration.

pub fn with_config(config: FastPathCacheConfig) -> FastPathCacheManager

Creates a new fast-path cache manager with a custom configuration.

pub fn try_allocate(&mut self, size_class: usize) -> Option<usize>

Attempts to allocate from the fast-path cache for the given size class. Returns Some(index) if successful, None if the cache is disabled or full.

pub fn record_deallocation(&mut self, size_class: usize)

Records a deallocation in the fast-path cache.

pub fn reset_class_cache(&mut self, size_class: usize)

Resets the cache for a specific size class.

pub fn reset_all(&mut self)

Resets all caches.

pub fn class_stats(&self, size_class: usize) -> Option<(usize, u8)>

Returns cache statistics for a specific size class.

pub fn efficiency_metrics(&self) -> FastPathEfficiencyMetrics

Returns overall fast-path cache efficiency metrics.

Trait Implementations

impl Default for FastPathCacheManager

fn default() -> FastPathCacheManager

Returns the “default value” for a type.