pandora-metrics/dist/common/metrics/Meter.d.ts

## Overview

import { EWMA } from '../util/EWMA';
import { BucketCounter } from './BucketCounter';
import { Metered, Metric } from '../domain';
/**
 * A meter metric which measures mean throughput and one-, five-, and fifteen-minute
 * exponentially-weighted moving average throughput.
 * 一种用于度量一段时间内吞吐率的计量器。例如，一分钟内，五分钟内，十五分钟内的qps指标，
 * 这段时间内的吞吐率通过指数加权的方式计算移动平均得出。
 */
export interface IMeter extends Metric, Metered {
    /**
     * Mark the occurrence of an event.
     * 标记一次事件
     */
    mark(): void;
    /**
     * Mark the occurrence of a given number of events.
     * 标记n次事件
     *
     * @param n the number of events
     */
    mark(n: number): void;
}
/**
 * A meter metric which measures mean throughput and one-, five-, and fifteen-minute
 * exponentially-weighted moving average throughputs.
 *
 * @see EWMA
 */
export declare class BaseMeter implements IMeter {
    type: string;
    m1Rate: EWMA;
    m5Rate: EWMA;
    m15Rate: EWMA;
    startTime: any;
    lastTick: any;
    uncounted: number;
    bucketCounter: BucketCounter;
    constructor(interval?: number, numberOfBucket?: number);
    private tickIfNecessary();
    mark(n?: number): void;
    getCount(): number;
    getInstantCount(startTime?: number): Map<number, number>;
    getInstantCountInterval(): number;
    getFifteenMinuteRate(): number;
    getFiveMinuteRate(): number;
    getMeanRate(): number;
    getOneMinuteRate(): number;
}