Google Summer of Code 2012

[Norman Feske]

> Whole system statistical profiling might not be possible without kernel
> support, which makes this hard given the number of kernels Genode runs
> on.

well, the CPU session interface provides a facility to query
thread-state information including the program counter. By virtualizing
this interface, the program counter of all CPU sessions of a sub system
could be sampled quite easily. But the question is what to do with this
data? One would need tooling support to visualize the distribution of
the sampled program-counter values, showing the function names, or
presenting backtraces in an expressive manner.

Norman