by Corran » Mon Dec 06, 2010 3:49 pm
There is a bug on the bandwidth usage page where streaming data is retrieved along with downloads. The reason being the data is stored in the same database table as regular downloads and the queries on that page were never updated to exclude that data. Also for streaming, if a user re-watches a preview, a new row is not added. Instead, the date of the "download" is updated. Therefore for anyone with streaming enabled, their stats may jump around a bit if people later go back to re-watch the preview a month later. Additionally, since previews are smaller than the actually download the bandwidth data is a bit skewed for those with a lot of previews. Streaming bandwidth needs to be considered separately based on view count and the size of the preview encode. >_>
I have no idea though why you are having any irregularities. You've opted out of streaming and as a result no streaming related data is muddying your collected data. The collaborations you've participated in with streaming don't effect bandwidth figures on your page, only the page of the person who entered the video in the database.
What exactly are you noticing? The query responsible for retrieving that data grabs all of your downloads for the past year and then groups/sums by calendar month. It goes by the first day of the historical month, so if you view it right now, it will present data from 1 Dec, 2009 to today.