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如何捕获 BlackBerry 中的 HTTP 吞吐量？

发布于 2024-08-20 10:00:40 字数 33 浏览 7 评论 0原文

请帮我找出BB编程中的HTTP吞吐量和HTTP延迟。

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贵在坚持 2024-08-27 10:00:40

您可以使用 System.currentTimeMillis() 获取代码中各个点的时间戳，然后使用这些值来计算计时。例如：

long start = System.currentTimeMillis();
HttpConnection connection = (HttpConnection) Connector.open(url);
long opened = System.currentTimeMillis();
String body = new String(IOUtilities.streamToBytes(connection.openInputStream()));
long done = System.currentTimeMillis();

long bytes = body.length();
float durationSeconds = (float)(done - opened) / 1000.0f;
float bytesPerSecond = bytes / durationSeconds;

System.out.println("Latency: " + (opened - start) + " ms");
System.out.println("Bandwidth: " + bytesPerSecond + " bytes per second");

You can use System.currentTimeMillis() to get timestamps at various points in your code, then use those values to calculate timings. For example:

long start = System.currentTimeMillis();
HttpConnection connection = (HttpConnection) Connector.open(url);
long opened = System.currentTimeMillis();
String body = new String(IOUtilities.streamToBytes(connection.openInputStream()));
long done = System.currentTimeMillis();

long bytes = body.length();
float durationSeconds = (float)(done - opened) / 1000.0f;
float bytesPerSecond = bytes / durationSeconds;

System.out.println("Latency: " + (opened - start) + " ms");
System.out.println("Bandwidth: " + bytesPerSecond + " bytes per second");

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