48a47609bc
hash with names of its hooks. It starts with size of 16, and grows when number of hooks reaches twice the current size. A failure to grow (memory is allocated with M_NOWAIT) isn't fatal, however. I used standard hash(9) function for the hash. With 25000 hooks named in the mpd (ports/net/mpd5) manner of "b%u", the distributions is the following: 72.1% entries consist of one element, 22.1% consist of two, 5.2% consist of three and 0.6% of four. Speedup in a synthetic test that creates 25000 hooks and then runs through a long cyclce dereferencing them in a random order is over 25 times.