Is there a way or place to go to find out how much usage and ultimately costs have accrued against your Windows Azure account ? I am really interested in usage details so that I can get an estimate of costs for our application in test and try to predict when I scale it out.
You cannot get a complete picture of metering / billing info programatically. However, your Windows Azure account has detailed monthly billing statements that break everything down: compute time per role, bandwidth, storage consumption, etc.
Here's the link on the portal, at windows.azure.com:

Then, sign in:

Finally: view your bills:

EDIT: If you need a tool to generate load on your system, for metering/billing purposes, you can easily do so with something like LoadStorm, as it's Testing-as-a-Service with nothing to install. Alternatively, you can use Visual Studio's test agents, but then you'll be throttled by local resources (load generation machines and bandwidth).
In addition to David's answer, there are some tools starting to come through to assist with this problem - e.g. see http://www.questcloudtools.com/azure/subscription-manager/

Disclaimer: I've not actually installed or used this myself
来源:https://stackoverflow.com/questions/6206810/how-to-find-acrued-billing-charges-for-windows-azure