Compare with tracecode

[zvr]

During the FOSDEM presentation, there was a question about performance comparison to tracecode.

We should research this and add some documentation about this.

[zvr]

OK, from a very quick first look, tracecode seems to be scripts processing the output of strace -ff -y -ttt -qq -a1.

[fvalasiad]

@zvr Yes i looked at it too, which means that it cannot be optimized for builds or do other specific tasks.

In any way developing build_recorder is well worth it.

[samruddhibhoyar3]

I would like to contribute in the documentation