Performance measurement is a hot topic
in IT, and it has always been so. How fast is the new hardware, which RDBMS has the highest TPS, which implementation has the lowest memory footprint…
Nowadays, pretty much anyone with a decent knowledge of a programming language can write some benchmark and publish his results, so benchmarks flourish everywhere.
Please read them with the colloquial grain of salt: measurement is hard and more often than not, the benchmark may include some bias favoring the author expectations. The bias will probably be accidental and of limited impact, but it will be there nonetheless.
But I wanted to discuss about microbenchmarking, with a focus on concurrency related ones.