Benchmarking : Same process multiple times, only one warmup?

Question

I am currently working on a Java application (Benchmark) that has for purpose to mesure some processes relative to a database.

My application is supposed to run has

Answer 1

One warmup is needed. If you covered those articles and doing a proper warmup (enough iterations, making sure your warmup code doesn't get eliminated etc.) then your warmup will be sufficient and you won't get any extra benefits of running it prior to each test.