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I’m developing a software that requires creation and deletion of a large number of threads.
When I create a thread the memory increases and when delete them (this is confirmed by using the command ps -mo THREAD -p <pid>), the memory related to the program/software does not decrease (top command). As a result I run out of memory.
I have used Valgrind to check for memory error/leak and I can’t find any. This is on a debian box. Please let me know what the issue could be.
How are you deleting the threads?
The notes here http://www.kernel.org/doc/man-pages/online/pages/man3/pthread_join.3.html talk about needing to call join in some cases to free up resources.