03-13-2013
Yes, good old shared memory is used by the traditional UNIX IPCs, including semaphores and queues. I am not sure why these have to be pinned. Pinning is usually for peripheral/I/O support or the paranoid.
You can do similar things without shared memory or pinning using mmap() and files. An area of a file can be mmap()'d by all related processes, no root required. The content is durable through boots, too!
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LEARN ABOUT LINUX
memusagestat
MEMUSAGESTAT(1) Linux programmer's manual MEMUSAGESTAT(1)
NAME
memusagestat - generate graphic from memory profiling data
SYNOPSIS
memusagestat [option]... datafile [outfile]
DESCRIPTION
memusagestat creates a PNG file containing a graphical representation of the memory profiling data in the file datafile; that file is gen-
erated via the -d (or --data) option of memusage(1).
The red line in the graph shows the heap usage (allocated memory) and the green line shows the stack usage. The x-scale is either the num-
ber of memory-handling function calls or (if the -t option is specified) time.
OPTIONS
-o file, --output=file
Name of the output file.
-s string, --string=string
Use string as the title inside the output graph.
-t, --time
Use time (rather than number of function calls) as the scale for the X axis.
-T, --total
Also draw a graph of total memory consumption.
-x size, --x-size=size
Make the output graph size pixels wide.
-y size, --y-size=size
Make the output graph size pixels high.
-?, --help
Print a help message and exit.
--usage
Print a short usage message and exit.
-V, --version
Print version information and exit.
EXAMPLE
See memusage(1).
BUGS
To report bugs, see <http://www.gnu.org/software/libc/bugs.html>
SEE ALSO
memusage(1), mtrace(1)
GNU
2014-09-06 MEMUSAGESTAT(1)