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ftp://ftp.sunmde.com/pub/gregns/mem_on_exit.c
ftp://ftp.sunmde.com/pub/gregns/measure_proe_mem.pl
Typically, these tools are used together. Either individual users of Pro/ENGINEER can run them directly, or a startup script of some kind can do it. In the latter case, a systems administrator can collect various statistics regarding memory consumption. You can also use the measure_proe_mem.pl script on its own. If you execute it at any time while the application is running, it will output the results at that time.
Here is an example output from the measure_proe_mem.pl script executed while Pro/ENGINEER is running:
% measure_proe_mem.pl -v
5045 /export/home/proe2000i2/sun4_solaris/obj/pro:
virtual_kb = 378512; shared_kb = 4232; private_kb = 179512
5046 /export/home/proe2000i2/sun4_solaris/nms/nmsd:
virtual_kb = 2832; shared_kb = 1512; private_kb = 1016
5048 /export/home/proe2000i2/sun4_solaris/obj/pro_comm_msg:
virtual_kb = 4848; shared_kb = 1496; private_kb = 1552
5060 /export/home/proe2000i2/sun4_solaris/obj/pglclock:
virtual_kb = 157592; shared_kb = 4224; private_kb = 6936
Total memory consumed by all Pro/ENGINEER-related processes:
Total virtual address space = 531 MB
Max shared = 4 MB
Total private = 185 MB
Max shared + Total private = 189 MB
You can easily modify these tools to work with applications other than Pro/ENGINEER. All you will have to do is change the names (or name patterns) of the executables, the name of the Perl script, and the output messages.
Measuring Paging to Disk
You can measure paging to disk with vmstat(1). This technique (among others) is described in:
http://www.sun.com/technical-computing/ISV/PTCFaq.html#PERFORMANCE
Look at the sr (scan rate) column in the vmstat output. When the numbers in that column are consistently zero or less than 200 pages per second, there is no significant paging to disk occurring and the amount of your physical memory is sufficient for the current session. If the scan rate is consistently high, application performance will improve if you add more RAM.
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