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Full Discussion: vmstats interpreting
Top Forums UNIX for Advanced & Expert Users vmstats interpreting Post 15978 by MizzGail on Friday 22nd of February 2002 10:40:35 AM
Old 02-22-2002
Tools
We are maxed out on cpu and memory. It would be nice to have room to grow.

I'm not keeping the vmstat a secret.. I could not get it in a format that would paste into the message area on this posting and be readable. I would have had to re-type it.

What I'm not sure on is if I "SHOULD" see the active memory go up when the free memory goes down. It sounds logical that I should, but the tuning manual says that free memory plus wire should total "around" the total memory capacity. But it doesn't.
I'm not sure if overhead memory doesn't show, because we are short approx 50k pages in the memory reporting.
When we took the apps down, there was still 53k pages in use. After booting, there were 11k in use.
It never shows me the full 4gb in use even when the free goes as low as 20 pages...
 

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LEARN ABOUT LINUX

free

FREE(1) 							Linux User's Manual							   FREE(1)

NAME

       free - Display amount of free and used memory in the system

SYNOPSIS

       free [-b|-k|-m|-g] [-c count] [-l] [-o] [-t] [-s delay] [-V]

DESCRIPTION

       free  displays  the  total  amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel.  The
       shared memory column should be ignored; it is obsolete.

   OPTIONS
       -b     Display the amount of memory in bytes.

       -c count
	      Display the result count times.  Requires the -s option.

       -g     Display the amount of memory in gigabytes.

       -k     Display the amount of memory in kilobytes. This is the default.

       -l     Show detailed low and high memory statistics.

       -m     Display the amount of memory in megabytes.

       -o     Display the output in old format, the only difference being this option will disable the display of the "buffer adjusted" line.

       -s     Continuously display the result delay seconds apart. You may actually specify any floating point number for delay, usleep(3) is used
	      for microsecond resolution delay times.

       -t     Display a line showing the column totals.

       -V     Display version information.

FILES

       /proc/meminfo memory information

AUTHORS

       Written by Brian Edmonds.

       Send bug reports to <albert@users.sf.net>

SEE ALSO

       ps(1), slabtop(1), top(1), vmstat(8).

Cohesive Systems						    5 Oct 2009								   FREE(1)
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