SemanticMetadata.net

Flickr uploads per minute – mean uploads per hour

I was wondering when people actually uploaded all their stuff, so I started to grab the uploads per minute on a regular basis some time ago (see here). It seems that people upload 4,682 images per minute in average. This remained more or less stable from the last experiment, which gave an average number of 4,602. Now I have enough data, 1,938 samples, for a first shot on the question: when do people upload their stuff?

It seams that people concentrate their uploads in between 3 pm and 11 pm (CET) and that there is not much going on around 8-10 am (CET). So that looks reasonable to me if the typical Flickr user is American or European

Average Flickr uploads in the last minute …

I grabbed the number of photos uploaded in the last minute every 5 minutes from February 25th 2010, 1 pm to March 5th 2010, 2.30 pm (CET). This resulted in a number of 1,703 samples. This does not sum up to the actual time because timeouts and network problems occurred in between. Nevertheless I found:

• Average uploads per minute: 4,602
• Sample minimum and maximum: 1,852 and 8,849

This is interesting as many research papers (including some of my own) talk about upload rates of 6,000-8,000 photos per minute, which definitely does not reflect the average value. This might be a good reminder that systems actually working with people change and that we have to take a look at the number periodically.