54 lines
1.5 KiB
TypeScript
54 lines
1.5 KiB
TypeScript
// services/performance-monitor.ts
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/**
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* 性能指标接口
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*/
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interface PerformanceMetrics {
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loadTime: number; // 加载时间（毫秒）
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memoryUsage: number; // 内存使用量（bytes）
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errors: string[]; // 错误信息列表
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}
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/**
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* 性能监控服务
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*/
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export class PerformanceMonitor {
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private static metrics: Map<string, PerformanceMetrics> = new Map();
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/**
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* 开始监控性能
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* @param id 监控对象的唯一标识符
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*/
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static startMonitoring(id: string) {
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const startTime = performance.now();
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const startMemory = (performance as any).memory?.usedJSHeapSize || 0;
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return {
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// 结束监控并记录指标
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end: () => {
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const loadTime = performance.now() - startTime;
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const memoryUsage = ((performance as any).memory?.usedJSHeapSize || 0) - startMemory;
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this.metrics.set(id, {
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loadTime,
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memoryUsage,
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errors: []
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});
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},
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// 记录错误信息
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error: (err: string) => {
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const metrics = this.metrics.get(id) || { loadTime: 0, memoryUsage: 0, errors: [] };
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metrics.errors.push(err);
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this.metrics.set(id, metrics);
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}
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};
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}
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/**
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* 获取性能指标
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* @param id 监控对象的唯一标识符
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*/
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static getMetrics(id: string): PerformanceMetrics | undefined {
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return this.metrics.get(id);
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}
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} |