Detecting memory fragmentation problem in a process

Question

What are the various mechanisms using which we can detect if a process execution is leading to memory fragmentation?

Are there any tools available for the same? Suggestion for tools which work with 'C' code and can run on Windows, Linux and VxWorks will be helpful.

Thanks for the question. I have edited and updated my question. — Jay, Jan 22 '10 at 06:54
Same question here http://stackoverflow.com/questions/1386776/memory-fragmentation-profiler — 3lectrologos, Jan 22 '10 at 07:07

score 2 · Accepted Answer · answered Jan 29 '10 at 11:58

2

Just as a suggestion, you may want to try Valgrind. I'm not certain it's what you're looking for, but it may come in handy.

http://valgrind.org/

answered Jan 29 '10 at 11:58

Dean Pucsek

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score 1 · Answer 2 · answered Feb 19 '10 at 16:37

1

There is a maxfreeblocksize in vxworks, if it keeps gettin lower and lower its an indication its getting fragmented

answered Feb 19 '10 at 16:37

c bee

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score 0 · Answer 3 · answered Apr 19 '14 at 23:43

On linux you can see the output of:

cat /proc/buddyinfo

It tells how many pages of a given order are available. If there are very few higher order pages available and mostly lower order pages are available and it indicates your system memory is quite fragmented. Look for the "Normal" entry.

See proc.txt

Detecting memory fragmentation problem in a process

3 Answers3