[Xymon] Actual and physical

Paul.A.Gallegos at wellsfargo.com Paul.A.Gallegos at wellsfargo.com
Wed Jul 27 22:54:18 CEST 2011

Old hobbit ML had this answer:


*	To: hobbit (at) hswn.dk 
*	Subject: Re: [hobbit] Difference between the actual memory and
physical memory 
*	From: Stef Coene <stef.coene (at) docum.org> 
*	Date: Tue, 6 May 2008 19:24:14 +0200 
*	References: <2C2023F85B068F42AB3BED42FD7EB3F904B39FDD (at)
*	User-agent: KMail/1.9.9 


On Tuesday 06 May 2008, Thangappandi, Arun (Ge Money, consultant) wrote:

> Can any one let me know the difference between the actual memory and

> physical memory which is being monitored by hobbit?


It depends on the OS. But the basic is: physical is the memory in the box.  

Actual is the memory in use by programs.


Total physical memory = program in physical memory + cache + free memory

Actual = program in memory + program in swap


Total physical memory will be 100% because the disk cache will consume all 

available memory.







Thank you! 

Paul Gallegos 



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From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of
Steve Holmes
Sent: Wednesday, July 27, 2011 1:00 PM
To: xymon at xymon.com
Subject: [Xymon] Actual and physical


On our Linux (5.1) hosts the memory page (Xymon 4.2.3) reports three values:
Actual, physical, and swap. What do the Actual and Physical numbers refer
to? The man page for hobbit-clients.cfg doesn't say.



Steve Holmes

Purdue University.

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