On Monday, 3 March 2014 02:18:39 UTC+5:30, tbc++ wrote:
>
> How are you running these tests? The "correct" way to benchmark such
> things is via a real benchmark framework (such as criterium) then compile
> your clojure app to a jar (perhaps via lein uberjar) and finally run it via
> a bare java invocation: java -jar my.jar.
>
> Lein for example sometimes uses sub-par JVM settings, trading runtime
> performance for startup speed.
>
Relevant bits from my project.clj are below:
:dependencies [[org.clojure/clojure "1.5.1"]
[criterium "0.4.3"]]
:global-vars {*warn-on-reflection* true
*assert* false
*unchecked-math* true}
:jvm-opts ^:replace ["-server" "-Xmx1g"]
I believe this overrides Lein's default tiered compilation setting. I
bench'ed both Java and Clojure code using Criterium.
Shantanu
>
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