On 09/30/10 18:37, Andre Oppermann wrote: > Both the vmmap and page table make use of splay trees to manage the > entries and to speed up lookups compared to long to traverse linked > lists or more memory expensive hash tables. Some structures though > do have an additional linked list to simplify ordered traversals.
The property of splay tree requiring *writes* for nearly every read really is a thorn in the eye for SMP. It seems to me that even if the immediate benefits from converting to something else are not directly observable, it will still be worth doing it. It's a shame that RCU is still a patent minefield :/ http://mirror.leaseweb.com/kernel/people/npiggin/patches/lockless/2.6.16-rc5/radix-intro.pdf Slightly off-topic: a scare-mongering topic on Slashdot: http://hardware.slashdot.org/story/10/09/30/1528229/Linux-May-Need-a-Rewrite-Beyond-48-Cores _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
