K 10
svn:author
V 6
jasone
K 8
svn:date
V 27
2008-06-16T23:42:05.697194Z
K 7
svn:log
V 614
MFC allocator improvements and fixes:

* Implement more compact red-black trees, thus reducing memory usage
  by ~0.5-1%.

* Add a separate tree to track dirty-page-containing chunks, thus
  improving worst case allocation performance.

* Fix a deadlock in base_alloc() for the error (OOM) path.

* Catch integer overflow for huge allocations when using sbrk(2).

* Fix bit vector initialization for run headers.  This fix has no
  practical impact for correct programs.  Incorrect programs will
  potentially experience allocation failures rather than memory
  corruption, both of which are "undefined behavior".

END