Struct Histogram 

pub struct Histogram { /* private fields */ }

Histogram for tracking value distributions.

Uses power-of-two bucket boundaries for efficient indexing. Bucket boundaries: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, inf

Example

use reovim_kernel::debug::Histogram;

static RESPONSE_TIMES: Histogram = Histogram::new();

fn handle_request() {
    let start = std::time::Instant::now();
    // ... handle request ...
    RESPONSE_TIMES.record(start.elapsed().as_micros() as u64);
}

Implementations

impl Histogram

pub const fn new() -> Self

Create a new histogram.

pub fn record(&self, value: u64)

Record a value in the histogram.

Value 0 goes to bucket 0. Values 1-1 go to bucket 1 (2^0). Values 2-3 go to bucket 2 (2^1). And so on…

pub fn mean(&self) -> f64

Get the mean value of all recorded samples.

pub fn count(&self) -> u64

Get the total count of recorded samples.

pub fn sum(&self) -> u64

Get the sum of all recorded values.

pub fn buckets(&self) -> [u64; 16]

Get bucket counts.

pub fn reset(&self)

Reset all histogram data.

Trait Implementations

impl Default for Histogram

fn default() -> Self

Returns the “default value” for a type.