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тАО09-11-2017 02:57 AM
тАО09-11-2017 02:57 AM
Experts, I am monitoring memory usage from swapinfo command on production servers and its showing almost 99% usage of memory so could you please help me to find out exact memory usage of server and which process is using more memory ? Please note that glance is not available on server.
Please find below kmeminfo output :
tool: kmeminfo 10.57 - libp4 9.873 - libhpux 1.507 - HP CONFIDENTIAL
unix: HP-UX B.11.31 64bit Tukwila 9320
core: /dev/kmem live kernel!
link: Sat Jul 22 01:09:04 IST 2017
boot: Sat Jul 22 01:17:28 2017
time: Mon Sep 11 15:10:14 2017
nbpg: 4096 bytes
----------------------------------------------------------------------
Physical memory usage summary (in page/byte/percent):
Physical memory = 8344708 31.8g 100%
Free memory = 71214 278.2m 1%
User processes = 1326587 5.1g 16% details with -user
Detached SHMEM = 1 4.0k 0% details with -shmem
System = 6946907 26.5g 83%
Solved! Go to Solution.
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тАО09-11-2017 03:13 AM
тАО09-11-2017 03:13 AM
Re: Memory utilization very high on HP-UX 11.31
Where is your "swapinfo -tam" output?
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тАО09-11-2017 04:07 AM
тАО09-11-2017 04:07 AM
Re: Memory utilization very high on HP-UX 11.31
Please find below requested output :
-bash-4.3# swapinfo -atm
Mb Mb Mb PCT START/ Mb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 16384 704 15680 4% 0 - 1 /dev/vg00/lvol2
reserve - 4840 -4840
memory 15485 4473 11012 29%
total 31869 10017 21852 31% - 0 -
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тАО09-11-2017 09:25 AM - edited тАО09-16-2017 08:13 PM
тАО09-11-2017 09:25 AM - edited тАО09-16-2017 08:13 PM
Solution100% memory usage is not a problem. It means your system is making best use of that resource. If more memory is needed, the paging subsystem will provide more by deactivating low priority processes and moveing inactive pages to the swap area. Are you trying to run additional processes that fail due to lack of memory?
You can get a simple picture of memory usage with these three commands:
# swapinfo -tam
# ipcs -bmop
# UNIX95=1 ps -e -o vsz,ruser,pid,args | sort -nk1
The first command show paging (swap) statistics, the second shows shared memory usage and the last shows the ram usage for each process with the largest programs at the bottom.
Note that some programs may report a lack of available memory because they were not prepared to handle large amounts of RAM. And kernel parameters may limit the amount of memory that a program is allowed to use. Both of these limits can be changed.
Bill Hassell, sysadmin
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тАО09-11-2017 10:23 AM
тАО09-11-2017 10:23 AM
Re: Memory utilization very high on HP-UX 11.31
>memory 15485 4473 11012 29%
You need to run this when you are near 100%.
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тАО09-12-2017 12:37 AM
тАО09-12-2017 12:37 AM
Re: Memory utilisation very high on HP-UX 11.31
Thank you very much for help....I got clear picture of memory utilisation now....thanks again
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тАО09-16-2017 07:48 PM
тАО09-16-2017 07:48 PM
Re: Memory utilisation very high on HP-UX 11.31
> Correction to my last post.
You can use Post Options > Edit reply to correct it and similarly delete your correction post.
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тАО09-16-2017 08:15 PM
тАО09-16-2017 08:15 PM
Re: Memory utilisation very high on HP-UX 11.31
Done
Bill Hassell, sysadmin