Anything that has been accessed within the past x amount of time and hasn't fallen out of cache yet. For more info, check http://github.com/nex3/arc/blob/master

Anything that has been accessed within the past x amount of time and hasn't fallen out of cache yet. For more info, check http://github.com/nex3/arc/blob/master/news.arc http://github.com/nex3/arc/blob/master/news.arc around lines 1485, 1550, 233.