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Full Discussion: Process memory usage
Operating Systems Solaris Process memory usage Post 302966580 by oakville on Saturday 13th of February 2016 07:45:59 PM
Old 02-13-2016
Process memory usage
hi all gurus:

I want to find out Solaris process memory usage, but got a bit confused, see if any one can provide me some guidance.

i tend to use prstat -a to get total memory consumption by user (I know prstat likely have a bug that simply sum up the memory, regardless if the memory being shared memory). Based on this command this hvr have a rss size of 121G .

Code:
prstat -a
 NPROC USERNAME  SWAP   RSS MEMORY      TIME  CPU
     6 hvr       120G  121G    47%   3:05:36 0.1%

then goes to ps, only two processes under hvr, with rss of 588400 + 41212 bytes, this appears varied a lot with above prstat output

Code:
$ ps -eo user,pid,project,taskid,args,rss|sort

    USER   PID  PROJECT TASKID COMMAND                                                                           RSS
     hvr  7289   system 881828 /export/home/hvr/HVR_HOME/bin/hvr -r -EHVR_HOME=/export/home/hvr/HVR_HOME -EHVR  41212
     hvr  7291   system 881829 /export/home/hvr/HVR_HOME/bin/hvr -r -EHVR_HOME=/export/home/hvr/HVR_HOME -EHVR  588400

goes to prstat -t, the project 881829 and 881829 under hvr have rss of 4594M + 4296M

Code:
$ prstat -T
   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
  8177 hvr        60G 4594M sleep   49    0   1:07:19 0.0% oracle/2
  7306 hvr        60G 4296M sleep   59    0   0:31:05 0.0% oracle/2

goes to prstat -J, then the project 881829 and 881829 under hvr have rss of 60G + 61G, which tend to match with prstat -a

Code:
prstat -J

TASKID    NPROC  SWAP   RSS MEMORY      TIME  CPU PROJECT
881828        1   60G   60G    24%   1:11:55 0.0% system
881829        1   60G   61G    24%   0:33:36 0.0% system

i am very confused, how to accurately find out how much memory process consume in solaris? thanks
Last edited by Don Cragun; 02-13-2016 at 08:48 PM.. Reason: Add CODE AND ICODE tags.
 

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LEARN ABOUT V7

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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