如何在 iPhone 中执行延迟测试

发布于 2024-10-15 08:44:10 字数 134 浏览 1 评论 0原文

我想对我的 iPhone 应用程序中的不同 url 执行延迟测试，一种方法是对 url 发出异步请求，并根据控件到达 connectionDidFinish 委托的时间来测量持续时间，这是正确的方法吗或者 iPhone 中有一些替代方案可以测量延迟时间？

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剧终人散尽 2024-10-22 08:44:10

我不确定你如何定义延迟。请参阅wiki 文章以获得一些说明。

我会分析响应时间来了解网络延迟，这在移动连接中非常有趣。我在我开发的应用程序之一中使用了这种方法：

- (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse
{  
    ...
    self.reqStart = [NSDate date];
    self.url = [[request URL] absoluteString];
    NSLog(@"--> Requesting : %@", url);
    ...
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)aResponse
{
    NSLog(@"<-- Response time %fs : %@", [[NSDate date] timeIntervalSinceDate:reqStart], url);
    ...
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSLog(@"<== Request time %fs : %@", [[NSDate date] timeIntervalSinceDate:reqStart], url);
    ...
}

限制带宽用于模拟器测试可能是非常有帮助。

I am not sure how you define latency. Look at the wiki article for some clarification.

I'd profile for the response time to get a picture of the network lag, very interesting in mobile connections. I am using this approach in one of the apps I've developed:

- (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse
{  
    ...
    self.reqStart = [NSDate date];
    self.url = [[request URL] absoluteString];
    NSLog(@"--> Requesting : %@", url);
    ...
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)aResponse
{
    NSLog(@"<-- Response time %fs : %@", [[NSDate date] timeIntervalSinceDate:reqStart], url);
    ...
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSLog(@"<== Request time %fs : %@", [[NSDate date] timeIntervalSinceDate:reqStart], url);
    ...
}

Throttling bandwidth for simulator testing could be very helpful.

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