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Full Discussion: swap file not present
Operating Systems Solaris swap file not present Post 302113408 by Naanu on Thursday 5th of April 2007 07:17:15 PM
Old 04-05-2007
swap file not present
Hello all,

We are running a 2 gig Solaris10 system. The only application that's running on the system is ours which allocates 850MB through malloc at one shot.

For some reason this malloc keeps failing saying "Resource Temporarily Unavilable"

After some investigation, found that it goes away when a swap file is added. But that is not the goal. We would want the app to run without any disk i/o or any page reloads. Everything should be off the physical memory.

Any inputs?

The config is as below
# swap -s
total: 52040k bytes allocated + 4648k reserved = 56688k used, 1542344k available

# swap -l
No swap devices configured

# vmstat 2
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 -- -- -- in sy cs us sy id
0 0 0 1498888 1706336 2 17 6 0 0 0 4 1 0 0 0 2361 234 271 0 0 100
0 0 0 1542152 1561576 0 4 0 0 0 0 0 0 0 0 0 2090 222 68 0 0 100
0 0 0 1542080 1561504 0 0 0 0 0 0 0 0 0 0 0 2078 106 55 0 0 100

# prtconf | grep Memory
Memory size: 2040 Megabytes


Assuming the OS needs 700MB to stand up and 300MB for other misc purposes, there is still 1 gig left, why does it need a swap file? Where has all my memory gone

# prstat -a
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
542 root 4816K 4808K cpu1 59 0 0:00:00 0.0% prstat/1
445 root 2744K 2224K sleep 59 0 0:00:18 0.0% vmstat/1
194 root 2112K 1480K sleep 59 0 0:00:00 0.0% sac/1
168 root 2704K 1328K sleep 59 0 0:00:00 0.0% cron/1
325 root 6904K 5384K sleep 59 0 0:00:00 0.0% sshd/1
203 root 3728K 2112K sleep 59 0 0:00:00 0.0% syslogd/13
183 daemon 2712K 1888K sleep 59 0 0:00:00 0.0% rpcbind/1
92 root 4248K 3680K sleep 59 0 0:00:00 0.0% nscd/24
193 root 1360K 1160K sleep 59 0 0:00:00 0.0% utmpd/1
529 root 1336K 1232K sleep 59 0 0:00:00 0.0% sh/1
186 root 9608K 8000K sleep 59 0 0:00:02 0.0% fmd/16
70 root 2560K 1864K sleep 59 0 0:00:00 0.0% syseventd/12
9 root 7072K 5192K sleep 59 0 0:00:08 0.0% svc.configd/12
7 root 15M 12M sleep 59 0 0:00:07 0.0% svc.startd/12
96 daemon 4360K 3000K sleep 59 0 0:00:00 0.0% kcfd/5
NPROC USERNAME SIZE RSS MEMORY TIME CPU
31 root 144M 101M 5.1% 0:00:38 0.0%
2 daemon 7072K 4888K 0.2% 0:00:00 0.0%



Any help would be great.

Thanks
 

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LEARN ABOUT MOJAVE

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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