K 10 svn:author V 6 jasone K 8 svn:date V 27 2008-08-16T20:14:21.470708Z K 7 svn:log V 330 MFC allocator improvements and fixes: * Enhance the chunk map to support run coalescing, and substantially reduce the number of red-black tree operations performed. * Remove unused code. * Fix arena_run_reg_dalloc() to use the entire precomputed division table. * Improve lock preemption performance for hyperthreaded CPUs. END