semantic-ds-toolkit/dist/src/optimization/performance-profiler.d.ts

Performance-first semantic layer for modern data stacks - Stable Column Anchors & intelligent inference

import { ColumnData } from '../types/anchor.types';
interface PerformanceMetrics {
    operation: string;
    duration: number;
    throughput?: number;
    memoryUsage: NodeJS.MemoryUsage;
    timestamp: number;
    metadata?: Record<string, any>;
}
export declare class PerformanceProfiler {
    private metrics;
    private activeOperations;
    private simdOps;
    constructor();
    private initializeSimdOperations;
    private mixHash64;
    private rotateLeft64;
    startOperation(operationId: string, metadata?: Record<string, any>): void;
    endOperation(operationId: string, rowsProcessed?: number): PerformanceMetrics;
    profileColumnProcessing(column: ColumnData, operation: string): PerformanceMetrics;
    profileBatchOperation(columns: ColumnData[], operation: string): PerformanceMetrics;
    private columnToBuffer;
    benchmarkThroughput(operation: () => void, iterations?: number): {
        avgDuration: number;
        throughput: number;
        memoryDelta: number;
    };
    getMetrics(): PerformanceMetrics[];
    getMetricsByOperation(operation: string): PerformanceMetrics[];
    getThroughputStats(): {
        avgThroughput: number;
        maxThroughput: number;
        p95Throughput: number;
    };
    clearMetrics(): void;
    get hashFunction(): (data: ArrayBuffer) => bigint;
    get vectorOps(): {
        sum: (values: Float64Array) => number;
        dot: (a: Float64Array, b: Float64Array) => number;
        distance: (a: Float64Array, b: Float64Array) => number;
    };
}
export declare const globalProfiler: PerformanceProfiler;
export {};
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