Real world benchmarks also wouldn't be great because they would be showing how well it works in someone else's program, rather than yours. This at least gives

Real world benchmarks also wouldn't be great because they would be showing how well it works in someone else's program, rather than yours. This at least gives you an idea of what the relative cost of different operations are so you can consider what are frequent operations in your program and then benchmark a couple from there, rather than everything.