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Operating Systems AIX AIX memory usage by processes Post 303025043 by dim on Tuesday 23rd of October 2018 10:40:23 AM
Old 10-23-2018
Thanks for your reply too..

There is no problem on functionality yet... but this is why i check the performance daily using nmon analyser, to prevent any issue! I hope so.. :P

Both servers have web services, http, java etc..
It shouldn't use that much memory for processes (server A). Actually it should work as server B.
This is why i am concerned...

I am new in AIX, but what i understood for memory usage is that the system uses some, then the processes uses whatever they need and the rest memory will be used for filesystem. In case, there is need for more memory there will be used paging space, is this correct?

If what i understood is correct, then there is problem on server A as there are processes which use paging space!
 

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SWAPON(8)						      System Manager's Manual							 SWAPON(8)

NAME
swapon - specify additional device for paging and swapping SYNOPSIS
swapon -a swapon name ... DESCRIPTION
Swapon is used to specify additional devices on which paging and swapping are to take place. The system begins by swapping and paging on only a single device so that only one disk is required at bootstrap time. Calls to swapon normally occur in the system multi-user initial- ization file /etc/rc making all swap devices available, so that the paging and swapping activity is interleaved across several devices. Normally, the -a argument is given, causing all devices marked as ``sw'' swap devices in /etc/fstab to be made available. The second form gives individual block devices as given in the system swap configuration table. The call makes only this space available to the system for swap allocation. SEE ALSO
swapon(2), init(8) FILES
/dev/[ru][pk]?b normal paging devices BUGS
There is no way to stop paging and swapping on a device. It is therefore not possible to make use of devices which may be dismounted dur- ing system operation. swapon is not implemented in 2.11BSD. 4th Berkeley Distribution November 17, 1996 SWAPON(8)
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