traceperf/dist/utils/timing.d.ts

High-performance function execution tracking and monitoring for Node.js

/**
 * High-resolution timing utilities for performance tracking
 */
/**
 * Get the current high-resolution time
 *
 * @returns The current high-resolution time
 */
export declare function getHighResTime(): [number, number];
/**
 * Calculate the duration between a start time and now
 *
 * @param startTime - The start time from getHighResTime()
 * @returns The duration in milliseconds
 */
export declare function getDuration(startTime: [number, number]): number;
/**
 * Format a duration in milliseconds to a human-readable string
 *
 * @param duration - The duration in milliseconds
 * @returns A formatted string (e.g., "1.23ms", "1.23s")
 */
export declare function formatDuration(duration: number): string;
/**
 * A simple timer class for measuring durations
 */
export declare class Timer {
    private _startTime;
    private _endTime;
    private _label;
    /**
     * Create a new Timer instance
     *
     * @param label - A label for the timer
     */
    constructor(label: string);
    /**
     * Stop the timer
     *
     * @returns The duration in milliseconds
     */
    stop(): number;
    /**
     * Get the duration of the timer
     *
     * @returns The duration in milliseconds
     */
    getDuration(): number;
    /**
     * Get the label of the timer
     *
     * @returns The timer label
     */
    getLabel(): string;
    /**
     * Reset the timer
     */
    reset(): void;
    /**
     * Get a formatted string with the duration
     *
     * @returns A formatted string (e.g., "label: 1.23ms")
     */
    toString(): string;
}