topic memory info in Operating System - HP-UX

memory info

Vishu — Thu, 25 Jun 2009 23:04:57 GMT

Hi guys,

when i do the following to find the memory installed in my server, i got the output..

# dmesg | grep -i phy
physical page size = 4096 bytes, logical page size = 4096 bytes
Physical: 8251256 Kbytes, lockable: 5940420 Kbytes, available: 6921028 Kbytes

Please tell me, what is lockable and available memory in it. and what they are pointing to like, is the total memory is the sum of lockable and available memory.

thanks

Re: memory info

Don Morris_1 — Thu, 25 Jun 2009 23:38:10 GMT

Lockable is memory which can be mlock/plock'ed. (Which just means it gets marked such that it will not be paged out). The kernel dynamic memory is also implicitly locked since HP-UX doesn't support paging kernel memory.

Part or all of lockable is in available. There's no direct correlation (usually available will be greater than lockable since you should start out with more free memory than the system can pin down).

Re: memory info

Venkatesh BL — Fri, 26 Jun 2009 03:10:18 GMT

> Physical: 8251256 Kbytes, lockable: 5940420 Kbytes, available: 6921028

It means you have 6921028 worth of RAM free now. Of which, 5940420 could be locked by user if their process wants to.

Re: memory info

Suraj K Sankari — Fri, 26 Jun 2009 05:00:10 GMT

Hi,
see the below link
http://docs.hp.com/en/5965-4641/ch01s03.html

Suraj

Re: memory info

R.K. # — Fri, 26 Jun 2009 05:25:43 GMT

Hi Vishnu,

Size of your physical memory is "8251256 Kbytes".

Regds,
R.K.