jmh-clojure uberjar example

core.clj

;; src/demo/core.clj

(ns demo.core
  (:require [clojure.core.async :as async]))

(defn blocking-put [ch]
  (async/>!! ch 42))

(defn blocking-take [ch]
  (async/<!! ch))

jmh.edn

;; resources/jmh.edn

{:benchmarks
 [{:name :put
   :fn demo.core/blocking-put
   :args [:chan]
   :options {:threads 3}}
  {:name :take
   :fn demo.core/blocking-take
   :args [:chan]}]

 :states
 {:chan
  {:scope :group :fn clojure.core.async/chan :args [:chan-n]}}

 :params
 {:chan-n [1]}

 :options
 {:async
  {:group :g
   :timeout [1 :sec]
   :mode :average
   :output-time-unit :ns
   :fork {:count 1 :warmups 0}
   :measurement 2
   :warmup 2}}}

project.clj

(defproject demo "0.1.0-SNAPSHOT"
  :dependencies [[org.clojure/clojure "1.10.1"]
                 [org.clojure/core.async "1.3.610"]]
  :plugins [[lein-jmh "0.3.0-SNAPSHOT"]]
  :profiles {:jmh {:jvm-opts []}
             :uberjar {:dependencies [[jmh-clojure/task "0.1.0-SNAPSHOT"]]
                       :main jmh.main
                       :aot [jmh.main]}})

run.sh

#! /usr/bin/env bash
set -e

lein uberjar
mkdir -p target/tmp/classes && cd target/tmp

cp=classes:../demo-0.1.0-SNAPSHOT-standalone.jar
java -Dfile.encoding=UTF-8 -cp "$cp" jmh.main '{:fail-on-error false, :format [:table :pprint], :type :async, :status true, :verbose true}'