You might also consult the entries given below, which take into account some late improvements in Boost.MultiIndex not present at the beginning of the series:

http://bannalia.blogspot.com/2014/01/a-better-hash-table.htm... http://bannalia.blogspot.com/2014/01/a-better-hash-table-gcc... http://bannalia.blogspot.com/2014/01/a-better-hash-table-cla...