I would like to take some time and pontificate about a subject that is near and dear to my heart – Debugging Code.  So here are some basic principles:

1)  Developers should be responsible for debugging – not Quality Assurance.

Developers know the code – they wrote it.
The same is not true for QA.
So there is no way that QA can debug code as well as Development.

My last four blogs posts have presented:

1. Symmetric Multi Processor (SMP) scaling problem.
2. Solution as presented by Pyramid Technology.
3. User space SMP problem.
4. Various lock primitives.

It’s logical to now explore how to debug an SMP system. But first I need to present the classic locking problem as defined by Dijkstra.