12 ms·

Might also be that newer versions of macOS need more RAM than Snow Leopard and therefore less is available for filesystem caches.

by planb 8y ago

lloeki 8y ago
This might be a factor although IIRC there has been some work after Lion (Mavericks?) where OS RAM usage went down significantly. It was really noticeable on 2GB VMs.
- saagarjha 8y ago
  Mavericks introduced compressed memory, so that may be the improvement you’re talking about.