[rdtsc]

> I never stop being impressed at how often people will jump to odd, unsupportable, conclusions like, "using MySQL will make this thing faster".

That is a good opportunity to ask questions and learn about the person, their knowledge and their use case.

Yeah sometimes the answer is they don't know how stuff works underneath and are just following a blog post or a trend or heard someone talk about it at meetup.

Programmers love programming tools / frameworks / languages. There are so many new shiny things out there. New ones pop up every month. New language, new build system, new db, new UI library, new message queue etc. Interstingly over the years, lots of those have had great performance improvements. Maybe they took advantage of new kernel API or some new algorithm and so on. That feeds the hype -- put new shiny things in and performance doubles.

So people have been trained to expect all the new things to just magically be better. But like said, you have to probe and find out the reason they propose the change, only then you can only see if it is justified or not (one of the resonable responses could be "I've actually measured with a production load and it does look better"),