Hi, Blake Jones píše v út 30. 03. 2010 v 22:15 -0700: > > Could the same algorithm used for ZFS deduplication be used for memory > > page deduplication? That may be an alternative to page out under > > memory shortage. > > We have memory page deduplication -- it's called copy-on-write, which we > use for multiply referenced private anonymous pages. Doing "dedup" on > arbitrary pages of memory would require removing all writable > translations to those pages before checking them, and the check would be > invalid as soon as the page was written to. >
But this is missing cases around virtualization, like many VirtualBox instances of MS Windows running on one system, isn't it? Best regards, Milan _______________________________________________ on-discuss mailing list on-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/on-discuss
