How long did you leave it running for before checking? (and yeah my numbers were based on change in chains per day)
About 10 minutes, although I have just checked again and it is still 9% slower. I can also see the marked drop in the chains/day stats in debug.log. Weird.
Upon further inspection the chainsperday number seems to jump around all over the place. anywhere from 0.58 to 0.89. Currently it seems to have stabilized at 0.77, which is still markedly higher than it was before the changes at 0.69.
edit: are you using other settings (or default settings)?
Also, sorry for thread jacking primedigger. We really should move this conversation back to the correct thread.