Struct FrameTimeStats 

pub struct FrameTimeStats { /* private fields */ }

Frame time statistics with percentile analysis.

Based on Dean & Barroso (2013): “The Tail at Scale” - p99 latency is critical for interactive systems like games.

Example

use jugar_web::loadtest::FrameTimeStats;

let mut stats = FrameTimeStats::new();
for i in 0..100 {
    stats.record(i as f64 * 0.1 + 5.0);
}
let report = stats.report();
assert!(report.p50 < report.p99);

Implementations

impl FrameTimeStats

pub fn new() -> Self

Create new empty statistics collector.

pub fn with_capacity(capacity: usize) -> Self

Create with pre-allocated capacity.

pub fn record(&mut self, frame_time_ms: f64)

Record a frame time sample (in milliseconds).

pub fn len(&self) -> usize

Get the number of samples.

pub fn is_empty(&self) -> bool

Check if empty.

pub fn percentile(&self, p: f64) -> f64

Get percentile value (0-100).

Common percentiles: p50 (median), p90, p95, p99.

pub fn min(&self) -> f64

Get minimum value.

pub fn max(&self) -> f64

Get maximum value.

pub fn mean(&self) -> f64

Get mean value.

pub fn std_dev(&self) -> f64

Get standard deviation.

pub fn report(&self) -> FrameTimeReport

Generate a summary report.

pub fn clear(&mut self)

Clear all samples.

Trait Implementations

impl Clone for FrameTimeStats

fn clone(&self) -> FrameTimeStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameTimeStats

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

Formats the value using the given formatter.

impl Default for FrameTimeStats

fn default() -> Self

Returns the “default value” for a type.