Milter-greylist

Hi, gang.  Is anyone else running milter-greylist on OpenBSD and, if
so, how's the new 3.1 branch performing?  In our environment (OpenBSD
3.9 on i386), we see a substantial (geometric-scale) slowdown in the
time required to load the greylist.db file on startup, which is of
particular concern when that file grows, as ours does, to hundreds of
thousands of entries, or more.

greylist.db lines     m-gr 3.0 startup     m-gr 3.1.1 startup
1,000                 0.06s                  0.03s
5,000                 0.11s                  0.15s
10,000                0.20s                  1.05s
20,000                0.33s                  6.71s
35,000                0.58s                 22.05s
50,000                0.80s                 44.62s
75,000                1.16s                101.12s

The slowdown seems to be isolated to the dump_parse() routine, but
I've been unable to figure out why, and Emmanuel suggested that I post
to the list for assistance.  Any ideas out there?

Cheers,

Erick.