10 More Discussions You Might Find Interesting
1. Red Hat
Hi
the version is RedHat 6.2 (Oracle DB server)
I don't know why swap memory usage keeps increasing...
I used to check swap memory usage Free -m and another way.
total used free shared buffers cached
Mem: 32183 31861 322 ... (3 Replies)
Discussion started by: tom8254
3 Replies
2. Red Hat
Hi ,
There is one following alert .
Message : cdm:Average (2 samples) swap memory usage is now 91%, which is above the warning threshold (90%)
Here is my findings.
Output of TOP command in Linux server.
top - 14:21:44 up 6 days, 4:48, 1 user, load average: 2.55, 2.06,... (3 Replies)
Discussion started by: Maddy123
3 Replies
3. Solaris
Hi
We have 2 identical T4-1's running Solaris 10 8/11 patched to 07/2012.
Both have 8G of swap allocated on the zfs root pool however a swap -s on one server shows 8G of swap available but on the other shows between 60 and 115G of swap available.
Both servers have the same amount of... (6 Replies)
Discussion started by: gregsih
6 Replies
4. Shell Programming and Scripting
Its rather confusing, the output of top command is below:
The "swap" field of top is described by the manpage as: "The swapped out portion of a task's total virtual memory image."
But the output of free command suggests something else and it does tally with the output of swapon... (3 Replies)
Discussion started by: proactiveaditya
3 Replies
5. Shell Programming and Scripting
Hi Folks,
I am looking for a way to write a script to calculate swap usage in Solaris so that the current usage will be shown in Percentage value. Thanks!!
Based on 'swap -s' command
# swap -s
total: 1378936k bytes allocated + 1236880k reserved = 2615816k used, 2725104k available (2 Replies)
Discussion started by: jaapar
2 Replies
6. Solaris
hi guys
i am new to opensolaris and i have installed opensolaris 2009.6 preview
and i would like to know how much swap using each process currently..... (6 Replies)
Discussion started by: srinivas2828
6 Replies
7. Solaris
Is there any way to get list of processes which are taking maximum swap , my system is showing no swap space in /var/adm/messages and i 'm unable to pin down the process which is consuming max swap space. (11 Replies)
Discussion started by: fugitive
11 Replies
8. HP-UX
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Discussion started by: alert0919
3 Replies
9. UNIX for Dummies Questions & Answers
Trying to come up with a command that will show all processes sorted from highest cpu usage to lowest. Any ideas? (9 Replies)
Discussion started by: cwsmichigan
9 Replies
10. Shell Programming and Scripting
Hi,
How do i get the swap space used and cpu usage for a particular application ?
thanks
una (2 Replies)
Discussion started by: una
2 Replies
maxdsiz(5) File Formats Manual maxdsiz(5)
NAME
maxdsiz, maxdsiz_64bit - maximum size (in bytes) of the data segment for any user process
VALUES
Default
Allowed values
DESCRIPTION
User programs on HP-UX systems are composed of five discrete segments of virtual memory: text (or code), data, stack, shared, and I/O.
Each segment occupies an architecturally defined range of the virtual address space that sets the upper limit to their size. However,
text, data, and stack segments may have a smaller maximum enforced by the and tunables.
This tunable defines the maximum size of the static data storage segment for 32-bit and 64-bit processes. The data storage segment con-
tains fixed data storage such as globals, arrays, static variables, local variables in main(), strings, and space allocated using and
Who is Expected to Change This Tunable?
Anyone.
Restrictions on Changing
Changes to this tunable take effect only for processes started after the modification. In addition, a process which modifies its for the
data segment propagates the modified limit to all child processes, thereby exempting them from any future modification of The value speci-
fied is expected to be a multiple of the base page size. See the description of in getconf(1) for more details. If the value specified is
not a multiple of the base page size, it will be rounded down to the nearest multiple of the base page size.
When Should the Value of This Tunable Be Raised?
This tunable should be raised if user processes are receiving the error message:
or
This may or may not cause a process failure depending on the program code.
What Are the Side Effects of Raising the Value?
Raising this tunable by definition allows larger data segments for every process. This means that and function as limitations on the
amount of swap space that can be reserved or used by each process. Therefore, using more virtual address space does not translate directly
into using more physical address space because virtual pages can be swapped out.
If swap space on the machine is near capacity, raising this tunable increases the amount of reservable swap per process. This could
exhaust the swap space on the system by allowing a process with a memory leak or a malicious program that uses huge amounts of memory to
reserve too much swap space.
When Should the Value of This Tunable Be Lowered?
This tunable should be lowered if swap space is at a premium on the machine and programs that are using too much swap space are affecting
the execution of other critical user processes.
What Are the Side Effects of Lowering the Value?
If swap space on the machine is near capacity, lowering this tunable will limit the amount of swap reserved for each process and will cause
the processes that consume large amounts of swap space to receive the error.
What Other Tunable Values Should Be Changed at the Same Time?
The tunable should be considered because it also limits swap usage by process stack segment.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by HP.
SEE ALSO
getconf(1), getrlimit(2), setrlimit(2), maxtsiz(5), maxssiz(5).
Tunable Kernel Parameters maxdsiz(5)