AIX memory consumption

Question: how can we report the REAL memory usage (without the cache!) using nmon or vmstat or svmon on AIX 6?

nmon:

vmstat:

svmon:

Like on Linux, we can use the free command, but it's not available in AIX:

[user@notebook ~]$ free -m
         total       used       free     shared    buffers     cached
Mem:          7797       4344       3453          0        219       2745
-/+ buffers/cache:       1379       6417
Swap:         2047          0       2047
[user@notebook ~]$ free -m | grep cache: | awk '{print $3}'
1379
[user@notebook ~]$