bandwidth

I'm using the QNetworkAccessManager to download files from the web, it provides an easy API to the task. But I wish to add a download rate limit to the class, so all http replies won't exceed that limit (I see no reason to limit the requests). I've googled abit and found an interesting post here . But what it does is subclass QTcpSocket and gives control over the bandwidth using a separate class that manages a set of sockets. While this is nice I want to continue using the QNetworkAcessManager class. The way I see it I could: subclass QNetworkAccessManager and integrate the subclassed

Can we find the internet bandwidth from the time it takes to ping a server if yes how is it done No, ping tells you nothing about the bandwidth, it just measures latency. Measuring bandwidth is best done by a dedicated test, i.e. transferring a bunch of bits and measuring how long time it takes. You might want to consider that the bandwidth can vary dramatically with many factors, such as: Direction; A to B might be faster than B to A, or vice versa Time of day; depending on general load level of links involved The exact route taken, which in turn can vary randomly You might be able to make a

I need to calculate AWS Bandwidth usage for an year , from the account activity i cannot see Data transfer option to get the statistics , How can it get it done ? Click on your account name in the top right of the AWS console . Choose Billing & Cost Management , Reports , AWS Usage Reports and you can download metrics for almost anything. You probably want to choose: Service: Amazon Elastic Compute Cloud Usage Type: DataTransfer-Out-Bytes You can then download detailed stats in XML or CSV for any specified time period. Go to the Billing & Cost Management : 来源： https://stackoverflow.com

I want to measure the main memory bandwidth and while looking for the methodology, I found that, many used ' bcopy ' function to copy bytes from a source to destination and then measure the time which they report as the bandwidth. Others ways of doing it is to allocate and array and walk through the array (with some stride) - this basically gives the time to read the entire array. I tried doing (1) for data size of 1GB and the bandwidth I got is '700MB/sec' (I used rdtsc to count the number of cycles elapsed for the copy). But I suspect that this is not correct because my RAM config is as