What zaxxon said is absolutely correct. Here is another very very quick check if everything is ok with your memory (and, no, it is neither an in-depth analysis nor does it replace one): Issue the command "svmon -G" and observe the first line of output. Here is a sample:
I have marked bold the two relevant values. As long as "inuse" is higher or roughly equal to "virtual" everything is ok with the memory size. If "virtual" is (much) higher than "inuse" then your machine needs a memory upgrade - and the size of the upgrade will be at about the difference betweeen these two values, times 4k, as the numbers represent 4k-sized memory-pages.
Hello:
Environment is: Oracle 817 on IBM RS/6000 AIX 433
I have 4GB RAM on the box and Page/Swap is about the same.
Presently I am using close to 1GB of RAM towards 5 instances of ORACLE production environments.
How can I know, how much of memory/RAM is used for :
Oracle Processes , I... (2 Replies)
Hi,
I need a clarification.
Is there any difference between AIX box and Sun Solaris box?
The bzip command with -c option works in AIX box and the same does not work in Sun Solaris box.
Can anyone please explain if there is an implementation difference in both these boxes for the shell... (1 Reply)
hi,
if I do top, I get
Memory: 19277012K (5868296K) real, 33860312K (11294208K) virtual, 795392K free
If I do swapinfo -tm I get:
% swapinfo -tm
Mb Mb Mb PCT
TYPE AVAIL USED FREE USED
dev 16384 0 16383 0%
dev ... (3 Replies)
Hi
I'be recently installed Virtouzzo on Centos 5 on 16GB box , but the system could only see 4 GB of RAM, I installed the package kernel-PAE, but the virtuozzo kernel still can't see the full memory.
even the kernel system can see 16GB of RAM
is there any idea bout that ?
Thanks (2 Replies)
I have certain questions.
1) How can i see the memory of the unix box.
2) How can i see the size of the database on the box
3)can anyone suggest an article or tutorial that explains the concept of
file systems and mount point in UNIX.
4)How can i see the dblink on the server
I... (5 Replies)
my system has 128G of installed memory. top, vmstat shows the system has just over 10G of free memory on the system. but as per prstat o/p the usage is just 50-55G is there anyway i can find which process/zone is using more memory ?
System has 3 zones and all running application servers.
... (1 Reply)
I am working on Oracle 2 node RAC 10.2.0.4 on Solaris 10 T2000 kit.
The box has around 32G of memory of which 24G is used by oracle user. There is 3G of free memory on the box.
Sga max is set to 5G and while checking v$pgastat i see that maximum pga memory memory allocated was 6.5G. So oracle... (29 Replies)
Hi,
monitor memory usage on AIX machine on any day of the week from 3:00 PM ET to 5:00 PM ET -
Povide min and max memory consumption.
Determine if all of the available memory is visible to the operating system. If it is not, determine the amount of memory which may be allocated to the... (3 Replies)
hi
i've notice a huge problem on my newly installed centOS server and i have no idea how to solve it and where to start..
memory on server 3 GB and it goes down, down, down..
after reboot it shows 71mb used
after a hour its 76mb
and after 24h it's around 200
later = more
i have NO idea... (7 Replies)
Discussion started by: tip78
7 Replies
LEARN ABOUT HPUX
eqmemsize
eqmemsize(5) File Formats Manual eqmemsize(5)NAME
eqmemsize - determines the minimum size (in pages) of the equivalently mapped reserve pool (OBSOLETED)
DESCRIPTION
This tunable has been obsoleted and removed.
If it is desired to control the total amount of equivalently mapped memory available to the kernel after boot, then use the new tunable
(see eqmem_limit(5)).
Note that generally speaking, systems where it was useful to set will not need to set
Equivalently mapped memory is memory which is given the same physical and virtual address. On PA-RISC systems, this is required to support
on-line addition of memory, and may be useful for some applications and some I/O devices.
HP-UX 11i Version 2 maintained a (small) reserve of equivalently mapped pages, which could be used for no other purpose. It could also
potentially equivalently map any page having a physical address below the maximum kernel virtual address, but only if it happened to find
both the virtual and physical addresses available; this rarely happened, except immediately after boot. The tunable was used to size this
reserve. It was kept quite small, except on systems known to use such memory, where the reserve pool size would be increased using the
tunable.
The equivalent memory allocator was completely rewritten after HP-UX 11i Version 2. The current version of the equivalent memory allocator
decides, at boot, which pages it will consider to be equivalently mappable. It makes the corresponding virtual addresses unavailable for
other purposes, thereby ensuring that if the physical page is available, it will be possible to map it equivalently. This allows such
pages to be used for other purposes, and still be reliably reused for equivalent mappings. Thus no reserve is required. The tunable
places a cap on the total amount of memory which will be considered equivalently mappable.
Such pages are treated almost identically to other pages, but not quite. The differences only matter on Cache-Coherent Non-Uniform Memory
Access (ccNUMA) systems, where in some circumstances these differences can result in reduced performance. On such systems the tunable may
be used to reduce the total amount of memory that will be designated equivalently mappable down to the maximum expected to actually be
needed. (Normally the kernel makes a very conservative estimate of the total amount that might be needed.) See eqmem_limit(5) for
details.
AUTHOR
was developed by HP.
SEE ALSO eqmem_limit(5).
OBSOLETED Tunable Kernel Parameters eqmemsize(5)