Theodore Ts'o <tytso <at> mit.edu> writes: <snip> > If we are to do page-level caching, we really need to change the VM to > use something like IBM's Adaptive Replacement Cache[1], which allows > us to track which pages have been more frequently used, so that we > only cache those pages, as opposed to those that land in the cache > once and then aren't used again. (Consider what might happen if you > are using clean cache and then the user does a full backup of the > system.) > > [1] http://en.wikipedia.org/wiki/Adaptive_replacement_cache <snip> It's a topic that's come up before, [2] is probably the best resource on the web right now regarding efforts to change the page-replacement algorithm in Linux. CAR/CART in particular are rather interesting. Seemingly not much motion recently, though. [1] NMF [2] http://linux-mm.org/AdvancedPageReplacement -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>