A payment page is usually updated once a day (once within 24 hours). Thus, you wait a very long time until you see the results of your stress test added to the billing page for your account.
In one place that you can track (among other KPIs for your application), there is a MONITOR tab in the Management Portal . You can proceed to testing the cloud service, click on the MONITOR menu item, then click on Add Metric below and finally select Network Out . This data control panel receives data every 5 minutes, so it should reflect the usage of the network you are talking about.
Here is a screenshot of how to do this:

Another option you have is to use a network performance counter such as Network Interface : Bytes Sent/sec . You need to configure Windows Azure Diagnostics to track that specific performance counter . Then you can set the planned transmission period to 1 minute and dig into the table created by the diagnostic agent for the data.
PS And yes, you are right - INBOUND data for Azure is FREE.
source share