What do you think of these modification to keep track of time spent in C extensions

[allan-simon]

https://github.com/mgedmin/djdt-flamegraph/blob/70a3a2c297fd0da6b175d9fd24bdc555890b885c/djdt_flamegraph/djdt_flamegraph.py

which was made after this issue https://github.com/23andMe/djdt-flamegraph/issues/5 where the author is telling he see signal being delayed because of C extensions

Is it something you've encountered too ?