Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8134403

Nashorn react.js benchmark performance regression

    XMLWordPrintable

Details

    • b80

    Backports

      Description

        https://github.com/maximenajim/java-vs-node-react-rendering-microbenchmark

        This benchmark is reported to exhibit a significant performance regression that was introduced between 8u31 and 8u40.

        Running the benchmark with -Xprof indicates a ca. 88 % profile for java.lang.invoke.MethodHandleNatives.setCallSiteTargetNormal; a JFR run (-XX:+UnlockCommercialFeatures -XX:+FlightRecorder -XX:FlightRecorderOptions=defaultrecording=true,disk=true,dumponexit=true,dumponexitpath=react.jfr,stackdepth=1024) indicates megamorphism around calls to "construct" functions from "instantiateReactComponent" functions.

        In principle, this can be due to either Nashorn or java.lang.invoke changes in between 8u31 and 8u40.

        JFR log is attached.

        Attachments

          1. react.jfr
            3.31 MB
            Michael Haupt

          Issue Links

            Activity

              People

                attila Attila Szegedi
                mhaupt Michael Haupt
                Votes:
                0 Vote for this issue
                Watchers:
                5 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: