More clever autorefresh intervals
02 Jul 2007
The automatic refresh (when viewing an issue) used to happen every 40 seconds. That's now been changed to happen every 3 seconds (to start with).
An interval of 3 seconds is much more likely to actually help the user since it's more often. However, if you leave a few tabs of issuetracker issues open, you'll have n AJAX requests every 3 seconds (where n is the number of open tabs). If you leave your browser tabs open and go away for lunch you'll have incurred 1200*n requests in one hour.
The refresh interval is more clever than that. In fact, it increases the interval by 30% every time it does a refresh check. Meaning the next time it will wait for 3.1 seconds the second time, 3.2 seconds the third time and so on.
If you've left a page open viewing an issue, after one hour the refresh interval will have cooled down to only do an AJAX request every minute (roughly).
