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pingora-limits - Rate Estimator hashes & slots configuration #76

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pingora-limits - Rate Estimator hashes & slots configuration #76

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pingora-limits - Rate Estimator hashes & slots configuration
PawelJastrzebski Sep 13, 2024
19eeddc
fix cargo fmt check
PawelJastrzebski Sep 13, 2024
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14 changes: 12 additions & 2 deletions pingora-limits/src/rate.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -43,9 +43,19 @@ const SLOTS: usize = 1024; // This value can be lower if interval is short (key
impl Rate {
/// Create a new `Rate` with the given interval.
pub fn new(interval: std::time::Duration) -> Self {
Rate::new_with_estimator_config(interval, HASHES, SLOTS)
}

/// Create a new `Rate` with the given interval and Estimator config with the given amount of hashes and columns (slots).
#[inline]
pub fn new_with_estimator_config(
interval: std::time::Duration,
hashes: usize,
slots: usize,
) -> Self {
Rate {
red_slot: Estimator::new(HASHES, SLOTS),
blue_slot: Estimator::new(HASHES, SLOTS),
red_slot: Estimator::new(hashes, slots),
blue_slot: Estimator::new(hashes, slots),
red_or_blue: AtomicBool::new(true),
start: Instant::now(),
reset_interval_ms: interval.as_millis() as u64, // should be small not to overflow
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