K 10 svn:author V 3 kib K 8 svn:date V 27 2013-07-12T10:07:48.490077Z K 7 svn:log V 476 MFC r251282: When auto-sizing the buffer cache, limit the amount of physical memory used as the estimation of size, to 16GB. This provides around 100K of buffer headers and corresponding KVA for buffer map at the peak. Sizing the cache larger is not useful, also resulting in the wasting and exhausting of KVA for large machines. MFC note: the commit message was adjusted to match the code change, the sizing cap is for 16GB, as noted by delphij. Approved by: re (delphij) END