Jason Evans e5bf0d71c9 Implement red-black trees without using parent pointers, and store the
color bit in the least significant bit of the right child pointer, in
order to reduce red-black tree linkage overhead by ~2X as compared to
sys/tree.h.

Use the new red-black tree implementation in malloc, which drops
memory usage by ~0.5 or ~1%, for 32- and 64-bit systems, respectively.
2008-04-23 16:09:18 +00:00
..
2008-03-07 15:25:56 +00:00
2008-04-10 00:12:44 +00:00
2008-03-26 07:32:08 +00:00