I've been experiencing and documenting a pretty severe performance problem with SA versions 3.0.1 through 3.1x (nightly) under Solaris 8 and 9, Perl 5.8.3.
What is the simplest way for me to see this problem? I use CSW packages for sendmail, MD, SA, perl and others. Running Solaris 9 on a small V210 with dual sparc CPU and 2Gb ram. I have not seen any large spikes in CPU usage, but my volumes may be too low.
I would like to simulate your test with MD. I have spamass-milter available if needed. Also, I have a single 360Mhz sparc Solaris 8 or 10 box with plenty of ram available for testing, but it may be too far away from production horsepower. I also have a dual 450Mhz sparc Solaris 10 with plenty of ram that I can use for testing. Actually, that one may be the simplest for me to use for a test.
Alex