In the last few days I've noticed that NB 6.60 B10 has gotten incredibly slow at processing headers for display (even once the headers are already downloaded and have been displayed, e.g reloading 1 days worth of headers.) This is mostly apparently in a.b.multimedia (29.92GB in total headers there prior to compacting) but even a.b.teevee (7.77GB) seems to have taken a monster step backwards in terms of speed (a.b.teevee takes ~3 minutes to load 1 day's worth of headers (1147 "posts")
I've checked the event logs, and ran a surface scan on the hard drive that stores the headers, neither shows any problems however displaying just one day's worth of headers for a.b.mm takes 7 minutes where it used to be able to process MM, Teevee and several other similar groups at once within 2 minutes. It seems like whatever fix was done to fix boneless may have borked other aspects. My next step will be to move the headers location, but as the headers are ~220GB, I'd prefer not to have to do that
Additionally since about B8 I've noticed the duplicate detector is finding duplicates where none exist (it gets midway through downloading something before failing it saying a duplicate was found, you then have to readd it to the list bipassing filters for it to successfully download. Maybe 1% of files hit this. Very much a minor issue.)