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请帮助我找出BB编程中的HTTP吞吐量和HTTP延迟。如何在BlackBerry中捕获HTTP吞吐量?
请帮助我找出BB编程中的HTTP吞吐量和HTTP延迟。如何在BlackBerry中捕获HTTP吞吐量?
您可以使用System.currentTimeMillis()
获取代码中各个时间点的时间戳,然后使用这些值计算时间。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");
问题没有什么意义。 – 2010-02-04 13:47:06