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PercentileTracker

presentar_terminal::perf_trace

Struct PercentileTracker 

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pub struct PercentileTracker { /* private fields */ }
Expand description

Approximate percentile tracker using fixed buckets (trueno-viz pattern)

Provides O(1) approximate percentiles using histogram-based estimation. Buckets: [0-1, 1-5, 5-10, 10-25, 25-50, 50-100, 100-250, 250-500, 500-1000, 1000+] ms

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impl PercentileTracker

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pub fn new() -> Self

Create a new percentile tracker with default latency buckets

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pub fn with_boundaries(boundaries: [u64; 10]) -> Self

Create with custom bucket boundaries (in microseconds)

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pub fn record_us(&mut self, value_us: u64)

Record a value in microseconds (O(1))

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pub fn record_ms(&mut self, value_ms: f64)

Record a value in milliseconds (O(1))

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pub fn percentile_us(&self, pct: f64) -> u64

Get approximate percentile value in microseconds (O(1))

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pub fn percentile_ms(&self, pct: f64) -> f64

Get approximate percentile value in milliseconds (O(1))

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pub fn p50_ms(&self) -> f64

Get p50 (median) in milliseconds

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pub fn p90_ms(&self) -> f64

Get p90 in milliseconds

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pub fn p99_ms(&self) -> f64

Get p99 in milliseconds

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pub fn count(&self) -> u64

Get total count

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pub fn reset(&mut self)

Reset tracker

Trait Implementations§

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impl Clone for PercentileTracker

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fn clone(&self) -> PercentileTracker

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for PercentileTracker

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

Formats the value using the given formatter. Read more
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impl Default for PercentileTracker

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fn default() -> Self

Returns the “default value” for a type. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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where Self: LowerExp,

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where Self: LowerHex,

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where Self: UpperHex,

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