How to check memory usage of on demand module loading

[alokprasad]

I am trying to load the module while system is up and then starting memstrack ,
but dont see any stats collected by it.
i have tried both kmalloc and get_free_pages , but none is captured.

./memstrack --report module_summary,module_top,proc_slab_static --notui -o /memory-debug

will be good to have a feature just to capture memory usage of a particular module

[ryncsn]

I am trying to load the module while system is up and then starting memstrack ,

You have to start memstrack before load the module, else the memory allocation events won't be catched by memstrack.

but dont see any stats collected by it.
i have tried both kmalloc and get_free_pages , but none is captured.

Currently, memstrack only track mm_page_alloc, so only real used memory is calculated.
So for kmalloc, if it didn't alloc enough memory to trigger a page allocation it won't be tracked.

./memstrack --report module_summary,module_top,proc_slab_static --notui -o /memory-debug

will be good to have a feature just to capture memory usage of a particular module

Good suggestion, I'll work on it.