如何使用 Java 函数中的日志记录机制分析应用程序性能？

env_variables:
  LOGGING_LEVEL: INFO

import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import java.io.BufferedWriter;
import java.io.IOException;
import java.time.Instant;
import java.util.logging.Logger;

public class AnalyzePerformance implements HttpFunction {
  private static final Logger logger = Logger.getLogger(AnalyzePerformance.class.getName());

  @Override
  public void service(HttpRequest request, HttpResponse response)
      throws IOException {
    // 记录请求信息
    logger.info("Received request for path: " + request.getPath());
    
    // 记录处理开始时间
    long startTime = Instant.now().toEpochMilli();

    // 处理请求
    // ...

    // 记录处理结束时间
    long endTime = Instant.now().toEpochMilli();
    long processingTime = endTime - startTime;
    
    // 记录处理时间
    logger.info("Request processed in " + processingTime + " milliseconds");

    // ...

  }
}

gcloud functions logs read FUNCTION_NAME \
--execution-id EXECUTION_ID