Struct WriteAmpTracker 

pub struct WriteAmpTracker { /* private fields */ }

Tracks cumulative bytes rewritten per compaction cycle for write-amplification budgeting.

Thread-safe via atomics; designed to be shared across concurrent compaction tasks.

Implementations

impl WriteAmpTracker

pub fn new() -> Self

Create a fresh tracker for a new compaction cycle.

pub fn record(&self, input_bytes: u64, output_bytes: u64)

Record bytes processed by a compaction task.

pub fn write_amplification(&self) -> f64

Current write amplification ratio (output / input).

Returns 0.0 if no input has been recorded.

pub fn budget_exhausted(&self, max_ratio: f64) -> bool

Returns true if the budget is exhausted.

pub fn input_bytes(&self) -> u64

Total input bytes recorded.

pub fn output_bytes(&self) -> u64

Total output bytes recorded.

pub fn reset(&self)

Reset the tracker for a new cycle.

Trait Implementations

impl Debug for WriteAmpTracker

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

Formats the value using the given formatter.

impl Default for WriteAmpTracker

fn default() -> Self

Returns the “default value” for a type.