Struct MemoryBudget 

pub struct MemoryBudget {
    pub total_budget: u64,
    pub memtable_budget: u64,
    pub immutable_memtables_budget: u64,
    pub block_cache_budget: u64,
    pub soft_limit: f64,
    pub hard_limit: f64,
}

Memory budget configuration for the storage engine

Fields

total_budget: u64

Maximum memory for all components (bytes)

memtable_budget: u64

Maximum memory for active memtable

immutable_memtables_budget: u64

Maximum memory for immutable memtables

block_cache_budget: u64

Maximum memory for block cache

soft_limit: f64

Percentage of budget at which to trigger early flush (0.0-1.0)

hard_limit: f64

Percentage of budget at which to block writes (0.0-1.0)

Implementations

impl MemoryBudget

pub fn from_system_memory_percent(percent: f64) -> Self

Create budget from available system memory percentage

Example: from_system_memory_percent(0.25) uses 25% of available RAM

Trait Implementations

impl Clone for MemoryBudget

fn clone(&self) -> MemoryBudget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryBudget

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

Formats the value using the given formatter.

impl Default for MemoryBudget

fn default() -> Self

Returns the “default value” for a type.