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Full Discussion: Memory Usage check
Operating Systems Solaris Memory Usage check Post 302903223 by EAGL€ on Monday 26th of May 2014 08:19:12 AM
Old 05-26-2014
Memory Usage check
Hello Friends,

I need to check memory usage & availability before I could run a program if there is enough memory is left or not, so how could i achieve this? Which command output i should rely on? I have diplayed outputs of SAR, VMstat and PRstat commands below, But how could i check memory usage according to total mem?

Output of SAR command for Free & Swap Mem.
Code:
-bash-3.00$ sar -r 4 5 

SunOS dx352 5.10 Generic_147441-10 i86pc    05/26/2014

16:10:56 freemem freeswap
16:11:00 6541752 61892086
16:11:04 6541762 61892824
16:11:08 6541676 61892808
16:11:12 6541589 61892808
16:11:16 6541410 61892808

Average  6541638 61892667

For example i have tried this directingSAR output to a file, however i can't compare it to total memory. How could i proceed? should i use "prtconf | grep -i mem" output to compare the value below?

Code:
cat 123.txt | nawk '/Average/{print $2}'

Output of VMSTAT for Memoru Usage Status of Virtual Machine
Code:
-bash-3.00$ vmstat 4 5
 kthr      memory            page            disk          faults      cpu
 r b w   swap  free  re  mf pi po fr de sr s0 s1 s2 --   in   sy   cs us sy id
 0 0 0 37855508 28701468 31 49 49 0 0 0  0 -0  4 -0  0 2247 2054 1087  0  1 98
 0 0 0 30946784 26165180 3 14 0 0  0  0  0  0  6  0  0 2798 2554 1497  1  0 99
 0 0 0 30946632 26164856 0 4 0  0  0  0  0  0  3  0  0 2927 3488 1825  1  2 97
 0 0 0 30946632 26164308 0 2 0  0  0  0  0  0 12  0  0 5979 8694 4221  2  2 96
 0 0 0 30946632 26164040 0 0 0  0  0  0  0  0  4  0  0 3630 4079 2333  1  1 98

Output of PRSTAT command which give process status based on users.
Code:
-bash-3.00$ prstat -u sscm -a -s cpu 0 1 | sed -e '/^$/d;/sleep/d;/Total/d'
   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP       
 26306 sscm     3492K 2668K cpu7    59    0   0:00:00 0.0% prstat/1
 NPROC USERNAME  SWAP   RSS MEMORY      TIME  CPU                             
    13 sscm       25G 8581M    17%  69:43:21 1.3%

Last edited by EAGL€; 05-26-2014 at 09:25 AM..
 

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LEARN ABOUT X11R4

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
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