Struct MemoryStats 

pub struct MemoryStats {
    pub budget_bytes: usize,
    pub reserved_bytes: usize,
    pub peak_bytes: usize,
    pub bytes_spilled: usize,
    pub spill_count: usize,
    pub active_reservations: usize,
    pub spill_threshold: f64,
}

Statistics snapshot from the memory controller

A point-in-time view of memory usage and spill statistics. Useful for monitoring, debugging, and query profiling.

Fields

budget_bytes: usize

Total memory budget

reserved_bytes: usize

Currently reserved memory

peak_bytes: usize

Peak memory usage (high water mark)

bytes_spilled: usize

Total bytes written to disk during spills

spill_count: usize

Number of spill operations performed

active_reservations: usize

Number of currently active reservations

spill_threshold: f64

Spill threshold (0.0 - 1.0)

Implementations

impl MemoryStats

pub fn utilization(&self) -> f64

Get memory utilization as a percentage (0.0 - 1.0)

pub fn is_under_pressure(&self) -> bool

Check if memory is under pressure (above spill threshold)

pub fn available_bytes(&self) -> usize

Get available memory

Trait Implementations

impl Clone for MemoryStats

fn clone(&self) -> MemoryStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryStats

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

Formats the value using the given formatter.

impl Display for MemoryStats

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

Formats the value using the given formatter.