03-12-2013
Quote:
Originally Posted by
maruthu
Am using "in use" value at the 6-th line number as memory usage. It gives 26 % as a memory usage. Also am using /bin/ps -eo comm,pmem,args to get the all the process memory usage to confirm with previous calculation.But value calculated by both methods does not match.
I noticed the amount of pinned memory. Have you taken shared memory segments into consideration? Use
ipcs to analyse these.
I hope this helps.
bakunin
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IPCS(1) User Commands IPCS(1)
NAME
ipcs - provide information on ipc facilities
SYNOPSIS
ipcs [-asmq] [-tclup]
ipcs [-smq] -i id
ipcs -h
DESCRIPTION
ipcs provides information on the ipc facilities for which the calling process has read access.
The -i option allows a specific resource id to be specified. Only information on this id will be printed.
Resources may be specified as follows:
-m shared memory segments
-q message queues
-s semaphore arrays
-a all (this is the default)
The output format may be specified as follows:
-t time
-p pid
-c creator
-l limits
-u summary
SEE ALSO
ipcrm(1), ipcmk(1)
CONFORMING TO
The Linux ipcs utility is not fully compatible to the POSIX ipcs utility. The Linux version does not support the -b and -o options, but
does support the -l and -u options not defined by POSIX. The portable application shall not use the -a, -b, -o, -l, and -u options.
AUTHOR
krishna balasubramanian (balasub@cis.ohio-state.edu)
AVAILABILITY
The ipcs command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux February 2008 IPCS(1)