08-14-2013
Yes, you are correct. Your system has no problem with memory as long as the following have no activity/are zero:
vmstat: Columns pi and pi
topas: Values for PgspIn and PgspOut
nmon: Interactive press m and see fields for to Paging Space
For a longterm monitoring it would suit to setup nmon non-interactive per cron and have it permanently collect performance data. In case of problems this data will have a big value. You can process the data graphically with nmon2rrd.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi All,
I have a question, can you guys please help me by giving your valuable suggestons:
I am using AIX 5L, running oracle 7 version. I need to increase the oracle memory to 40 MB more. Currently Oracle occupies 260M. I wanted to know whether I can increase the memory without any problem.... (1 Reply)
Discussion started by: kollam68
1 Replies
2. AIX
Hi All,
I have a question, can you guys please help me by giving your valuable suggestons:
I am using AIX 5L, running oracle 7 version. I need to increase the oracle memory to 40 MB more. Currently Oracle occupies 260M. I wanted to know whether I can increase the memory without any problem.... (3 Replies)
Discussion started by: kollam68
3 Replies
3. AIX
Hi,
We have AIX 5.1 machine of RAM 8 GB and paging space is 8GB. we are getting high memory usage of almost 99%.Can anybody please help in this ?
Partial vmstat o/p
kthr memory
----- -----------
r b avm fre
2 1 278727 1143
There is no paging issue.Becoz in... (5 Replies)
Discussion started by: jayakumarrt
5 Replies
4. AIX
How to check the memory usage on AIX by various processes? (1 Reply)
Discussion started by: aajmani
1 Replies
5. 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
6. AIX
How to monitor the IBM AIX server for I/O usage, memory usage, CPU usage, network usage, storage usage? (3 Replies)
Discussion started by: laknar
3 Replies
7. AIX
Hi,
I have AIX 5.3TL8 two node cluster using HACMP and have 10g database using RAW devices. I am seeing gradual increase in comp% memory everyday and it reaches 100% and evicts the node, we had 4 evictions in 40days.
I am pasting vmstat and vmo output, anyone seen this issue?
... (5 Replies)
Discussion started by: navin7386
5 Replies
8. AIX
hi,
I want to ask , my AIX 6.1 is always used about 97% memory.
Is this normal ?
or any command can free up memory like Linux ?
thanks. (1 Reply)
Discussion started by: virusxx
1 Replies
9. AIX
Hello,
Am working on small program that used to calculate the memory usage of AIX servers. Am using svmon -G command to get the memory usage. For example, consider the following output.
$ svmon -G
size inuse free pin virtual mmode
memory ... (9 Replies)
Discussion started by: maruthu
9 Replies
10. AIX
Hi, i have 2 identical web servers using AIX. I use nmon analyser to check their performance.
The server A exceeds 20% memory usage for system, 5% for cache and the rest 75% for processes. While, it uses 4% of Paging Space.
The server B exceeds 20% for system, 45% for cache and 35% for processes.... (24 Replies)
Discussion started by: dim
24 Replies
LEARN ABOUT REDHAT
munlock
MUNLOCK(2) Linux Programmer's Manual MUNLOCK(2)
NAME
munlock - reenable paging for some parts of memory
SYNOPSIS
#include <sys/mman.h>
int munlock(const void *addr, size_t len);
DESCRIPTION
munlock reenables paging for the memory in the range starting at addr with length len bytes. All pages which contain a part of the speci-
fied memory range can after calling munlock be moved to external swap space again by the kernel.
Memory locks do not stack, i.e., pages which have been locked several times by calls to mlock or mlockall will be unlocked by a single call
to munlock for the corresponding range or by munlockall. Pages which are mapped to several locations or by several processes stay locked
into RAM as long as they are locked at least at one location or by at least one process.
On POSIX systems on which mlock and munlock are available, _POSIX_MEMLOCK_RANGE is defined in <unistd.h> and the value PAGESIZE from <lim-
its.h> indicates the number of bytes per page.
RETURN VALUE
On success, munlock returns zero. On error, -1 is returned, errno is set appropriately, and no changes are made to any locks in the
address space of the process.
ERRORS
ENOMEM Some of the specified address range does not correspond to mapped pages in the address space of the process.
EINVAL len was not a positive number.
CONFORMING TO
POSIX.1b, SVr4
SEE ALSO
mlock(2), mlockall(2), munlockall(2)
Linux 1.3.43 1995-11-26 MUNLOCK(2)