32bit vs. 64bit memory usage

From: Miller, Dave (I.S.) (Dave.Miller@BHS.ORG)
Date: Wed Mar 03 2004 - 15:06:16 EST


We recently changed to and booted a 64bit kernel on an AIX 5.2 box
(p630).

Once the application is up, we have approx. 4.5GB memory in use.

If we switch back to 32bit, and bring the app up, We have approx. 5.1GB
in use, or 11% more....

We are running the same amount of processes.,and have gone back and
forth a couple of times to confirm the numbers...

Can anyone offer an explanation on the memory savings?

Thanks.

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