It was an amazingly busy day in the portal. We logged our busiest day (in terms of user sessions) ever.
We sustained 4 straight hours of 1,500+ concurrent user sessions. Our servers logged 32,301 session creation events and of those sessions there were 12,892 unique users.
We’re cooking up some reports for what 2006 looked like.
Update: We define “concurrent user” as an active user session object. This may be a bit lax compared to other ways of measuring, but as long as we stay consistent we have good general usage numbers.

1 response so far ↓
1 Jim Helwig // Jan 23, 2007 at 10:40 am
How do you define concurrent user? We define this to be “a user that has requested a page within the last 5 minutes.”