Wrong Free Memory Calculation?

[moe2006]

In / ZenPacks / Rackspace / LinuxMonitor / objects / objects.xml

Line 37:

((memAvailReal + memCached) - memBuffer) *1024

Shouldn't the real free memory be calculated like this ?

(memAvailReal + memCached + memBuffer) *1024

[Hackman238]

While that's true buffers don't get freed quickly so I decided to not treat them as free memory to avoid flapping cases on linux. Any ideas how I could represent the value as you suggest while avoiding this problem?