From: Smith, Todd (Todd.Smith@CAMC.ORG)
Date: Wed Mar 03 2004 - 16:07:32 EST
64bit code is larger then 32bit code and all factors being equal then 64bit
code will always use more RAM and this includes the kernel as well as
userspace apps.
Todd Smith todd.smith@camc.org <mailto:todd.smith@camc.org>
-----Original Message-----
From: Miller, Dave (I.S.) [mailto:Dave.Miller@BHS.ORG]
Sent: Wednesday, March 03, 2004 15:06 PM
To: aix-l@Princeton.EDU
Subject: 32bit vs. 64bit memory usage
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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