The talk

The tools

OProfile on ARM

To be able to generate backtraces with oprofile on ARM you will need to compile code with -fno-omit-frame-pointer. This option is enabled with at least -O2 in recent gcc's.

Tasks for OProfile

In OProfile 0.9.5 the timer based profiling is broken. Would be cool if something is fixing it.

MemProf

MemProf is the best tool for memory analysis I have found so far. In the future it might be just a frontend for SystemTap but this will take some years. Specially the utrace framework needs to be merged before. Currently the following things would be cool for memprof.

Create a python tab and be able to filter and sort the data with python. It should be similiar to the python performance module.
Merge and speedup raster's memory fragmentation visualiation. It might be necessary to generate the fragmentation view only on request
Provide a histogram tab. Which sizes of memory are allocated the most? Or which call site is allocating the most memory?
Provide a tab (or based on python) a view that shows how long memory allocations live.
Make it work on MIPS, ARM, SPARC...
Talk to me about more ideas. I will buy Cookies for whoever is sending me patches during foss.in