Until today, the Munin APC plugin for Drupal displayed SMA and Cache info on the same graph, meaning RAM allocation and use coexisted with hit-related indicators, like the number of hits, misses, insertions and deletions.
In most cases, this proved to be a not-so-good idea:
- in the short term and for smaller sites, memory allocation dwarfed hits counters, making them illegible
- vice-versa, in the longer term and for bigger sites, hit counters tended to dwarf memory allocation numbers
Starting with version drupal-6--1-0-dev11b1401, these two graphs are now separated.