Thanks very much AlleyViper! Your explanations give me the confidence to give this a try.
Unexpectedly, when I examind my original cache partition it showed the starting offseet as 2048. I’d always heard to start at 4096 (or multiples) to get a 4k alignment ??
I was researching SSD partitioning and ran into the following: http://www.tomshardware.com/forum/292105-32-best-format-partition-performance-wear-leveling#6100306 . One thing they say is that trying to use more than 80% of the allocated space on an SSD will result in performance issues. Well, 0.8 x 29 GB = 23.2 GB – that number looks familiar! Maybe these full cache slowdowns are just symptoms of a normal ssd issue of needing at least 20% slack space, and reducing the cache partition size is the actual fix and not just a work-around…
