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监控和分析
本文档详细介绍了Eagle2Ae AE扩展的监控和分析策略,帮助开发者了解扩展的性能表现并进行持续优化。
概述
监控和分析是确保Eagle2Ae扩展持续优化和稳定运行的关键。本指南涵盖性能监控、内存使用监控等分析技术。
性能监控
实施性能监控
通过性能监控了解各操作的执行时间,识别性能瓶颈:
javascript
class PerformanceMonitor {
constructor() {
this.metrics = new Map();
this.enabled = true; // 生产环境可设为false
}
startTimer(operation) {
if (!this.enabled) return null;
const startTime = performance.now();
return {
operation,
startTime,
end: () => {
const endTime = performance.now();
const duration = endTime - startTime;
this.recordMetric(operation, duration);
return duration;
}
};
}
recordMetric(operation, duration) {
if (!this.metrics.has(operation)) {
this.metrics.set(operation, {
count: 0,
totalTime: 0,
minTime: Infinity,
maxTime: 0,
avgTime: 0
});
}
const metric = this.metrics.get(operation);
metric.count++;
metric.totalTime += duration;
metric.minTime = Math.min(metric.minTime, duration);
metric.maxTime = Math.max(metric.maxTime, duration);
metric.avgTime = metric.totalTime / metric.count;
// 记录性能异常
if (duration > 1000) { // 超过1秒
console.warn(`[PERF] 性能警告: ${operation} 耗时 ${duration.toFixed(2)}ms`);
}
}
getReport() {
const report = {};
for (const [operation, metric] of this.metrics) {
report[operation] = {
调用次数: metric.count,
总耗时: `${metric.totalTime.toFixed(2)}ms`,
平均耗时: `${metric.avgTime.toFixed(2)}ms`,
最小耗时: `${metric.minTime.toFixed(2)}ms`,
最大耗时: `${metric.maxTime.toFixed(2)}ms`
};
}
return report;
}
}
// 使用示例
const perfMonitor = new PerformanceMonitor();
async function optimizedFileCheck(files) {
const timer = perfMonitor.startTimer('项目文件检测');
try {
const result = await this.isProjectInternalFile(files);
const duration = timer.end();
console.log(`[PERF] 项目文件检测完成,耗时: ${duration.toFixed(2)}ms,文件数: ${files.length}`);
return result;
} catch (error) {
timer.end();
throw error;
}
}性能监控类
另一种性能监控实现方式:
javascript
class PerformanceMonitor {
constructor() {
this.metrics = new Map();
this.startTimes = new Map();
}
startTimer(name) {
this.startTimes.set(name, performance.now());
}
endTimer(name) {
const startTime = this.startTimes.get(name);
if (startTime) {
const duration = performance.now() - startTime;
this.recordMetric(name, duration);
this.startTimes.delete(name);
return duration;
}
}
recordMetric(name, value) {
if (!this.metrics.has(name)) {
this.metrics.set(name, []);
}
const values = this.metrics.get(name);
values.push(value);
// 保持最近100个值
if (values.length > 100) {
values.shift();
}
}
getAverageMetric(name) {
const values = this.metrics.get(name);
if (!values || values.length === 0) return 0;
return values.reduce((sum, val) => sum + val, 0) / values.length;
}
generateReport() {
const report = {};
for (const [name, values] of this.metrics) {
report[name] = {
average: this.getAverageMetric(name),
min: Math.min(...values),
max: Math.max(...values),
count: values.length
};
}
return report;
}
}内存使用监控
实施内存监控
定期检查内存使用情况,避免内存泄漏:
javascript
class MemoryMonitor {
constructor() {
this.checkInterval = 30000; // 30秒检查一次
this.memoryThreshold = 100 * 1024 * 1024; // 100MB阈值
this.startMonitoring();
}
startMonitoring() {
setInterval(() => {
if (performance.memory) {
const used = performance.memory.usedJSHeapSize;
const total = performance.memory.totalJSHeapSize;
const limit = performance.memory.jsHeapSizeLimit;
const usage = (used / limit) * 100;
if (used > this.memoryThreshold) {
console.warn(`[MEMORY] 内存使用警告: ${(used / 1024 / 1024).toFixed(2)}MB (${usage.toFixed(1)}%)`);
// 触发垃圾回收建议
this.suggestGarbageCollection();
}
}
}, this.checkInterval);
}
suggestGarbageCollection() {
// 清理缓存
if (window.pathCache) {
window.pathCache.clear();
}
// 清理事件监听器
if (window.eventManager) {
window.eventManager.cleanup();
}
console.log('[MEMORY] 已执行内存清理建议');
}
}内存监控类
另一种内存监控实现方式:
javascript
class MemoryMonitor {
constructor() {
this.checkInterval = 30000; // 30秒检查一次
this.startMonitoring();
}
startMonitoring() {
setInterval(() => {
this.checkMemoryUsage();
}, this.checkInterval);
}
checkMemoryUsage() {
if (performance.memory) {
const memory = performance.memory;
const usage = {
used: Math.round(memory.usedJSHeapSize / 1024 / 1024),
total: Math.round(memory.totalJSHeapSize / 1024 / 1024),
limit: Math.round(memory.jsHeapSizeLimit / 1024 / 1024)
};
console.log('内存使用情况:', usage);
// 内存使用率超过80%时警告
if (usage.used / usage.limit > 0.8) {
console.warn('内存使用率过高,建议清理资源');
this.triggerCleanup();
}
}
}
triggerCleanup() {
// 触发垃圾回收(如果可用)
if (window.gc) {
window.gc();
}
// 清理缓存
this.clearCaches();
}
}最佳实践总结
1. 监控分析
- 实施性能监控
- 定期检查内存使用
- 生成性能报告
通过遵循这些监控和分析策略,可以持续优化Eagle2Ae扩展的性能和稳定性。