Real Memory vs. Physical Memory.

[David de Beer]

Greetings,

When using SAM -> Performance Monitors -> System Properties:

Physical Memory: 3074.7 MB
Real Memory:
Active: 1379445.8 KB
Total: 1424073.7 KB
Virtual Memory:
Active: 1699733.2 KB
Total: 1811379.2 KB
Free Memory Pages: 60412 at 4 KB/page
Swap Space:
Avail: 3000 MB
Used: 1641 MB

What is the difference between Real and Physical Memory, and why do they differ?

[dmesg | grep Physical]
Physical: 3145712 Kbytes, lockable: 2367012 Kbytes, available: 2722636 Kbytes

[top -f file.text ; grep Memory file.text]
Memory: 1420376K (1379260K) real, 1804992K (1708672K) virtual, 245436K free Page# 1/10

Thank you.
David de Beer.

[Stf · Accepted solution]

Hello,

To get info of physical memory look at this:

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/5965-4641/5965-4641_top.html&con=/hpux/onlinedocs/5965-4641/00/00/1-con.html&toc=/hpux/onlinedocs/5965-4641/00/00/1-toc.html&searchterms=management%7cmemory&queryid=20041201-024903

and about real memory :

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B8844-90006/B8844-90006_top.html&con=/hpux/onlinedocs/B8844-90006/00/01/143-con.html&toc=/hpux/onlinedocs/B8844-90006/00/01/143-toc.html&searchterms=management%7cmemory&queryid=20041201-024903

Stf ;-)

[Pete Randall]

David,

Accordign to SAM itself:

"Physical Memory:
Amount of physical memory (RAM) installed in the machine.

Real Memory:
Amount of real memory in the machine that is available to user processes and the virtual paging system (not held by the kernel: Active: Real memory currently being used. Total: Total real memory in the system.


Pete

[David de Beer]

Thread closed.