[clj] Combine bench and profiling

bench_filing.clj

(require '[clj-async-profiler.core :as prof] '[criterium.core :as bench])

(prof/profile {:return-file true}
  (bench/bench
    (merge {:a 1} {:b 2})))
; Execution time mean : 284.172365 ns
; /tmp/clj-async-profiler/results/03-cpu-flamegraph.svg

(prof/profile {:return-file true}
  (bench/bench
    (into {:a 1} {:b 2})))
; Execution time mean : 323.373109 ns
; /tmp/clj-async-profiler/results/04-cpu-flamegraph.svg