Hi Norman
Sorry I did indeed read your question to quickly. As xuzhengwei mentioned a copy of "show system processes" would be useful. Could you also include "show chassis routing-engine.
If you look at the output below, I actullay have 59% utilization while my router is doing nothing. From the "show system processes" output however you can see the memory is defided between Active, In Active, Wired, Cache, Buffered and Free.
adelport@epsom> show chassis routing-engine
Routing Engine status:
Temperature 32 degrees C / 89 degrees F
CPU temperature 37 degrees C / 98 degrees F
DRAM 768 MB
Memory utilization 59 percent
CPU utilization:
User 1 percent
Real-time threads 11 percent
Kernel 88 percent
Idle 0 percent
Model RE-J.3
Serial ID BTRD44400174
Start time 2008-08-13 15:06:50 CEST
Uptime 28 days, 21 hours, 41 minutes, 11 seconds
Load averages: 1 minute 5 minute 15 minute
0.15 0.07 0.01
adelport@epsom> show system processes summary
last pid: 12256; load averages: 0.13, 0.07, 0.01 up 28+21:41:52 12:37:22
90 processes: 3 running, 69 sleeping, 18 waiting
Mem: 47M Active, 78M Inact, 304M Wired, 62M Cache, 69M Buf, 250M Free
Swap:
PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
11 root 1 171 52 0K 12K RUN 624.0H 91.80% idle
4037 root 1 132 0 516M 276M RUN 67.9H 6.15% fwdd
adelport@epsom>