On 16.03.2016 11:28, Hannes Wallnöfer wrote:
Hi Jochen, we recently had a report on nashorn-dev that could be related. A user is re-evaluating the same or similar code again and seeing more than 20x slowdown compared to the fist evaluation. http://mail.openjdk.java.net/pipermail/nashorn-dev/2016-March/006024.html The thing is that he is using fresh ScriptEngines for the second evaluation, so the Nashorn engines should not share anything. As with your case, Jvisualvm shows that 80% of time is spent in java.lang.invoke.MethodHandleNatives.setCallSiteTargetNormal().
ok, thanks, good to know there are at least potential issues around (be it JVM or wrong use through the language)
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