#!/bin/sh+
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#+
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# Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.+
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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# +
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# This code is free software; you can redistribute it and/or modify it+
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# under the terms of the GNU General Public License version 2 only, as+
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# published by the Free Software Foundation.+
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# +
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# This code is distributed in the hope that it will be useful, but WITHOUT+
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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# version 2 for more details (a copy is included in the LICENSE file that+
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# accompanied this code).+
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# +
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# You should have received a copy of the GNU General Public License version+
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# 2 along with this work; if not, write to the Free Software Foundation,+
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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# +
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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# or visit www.oracle.com if you need additional information or have any+
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# questions.+
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#+
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+
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###########################################################################################+
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# This is a helper script to evaluate nashorn with optimistic types+
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# it produces a flight recording for every run, and uses the best +
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# known flags for performance for the current configration+
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###########################################################################################+
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+
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# Flags to instrument lambdaform computation, caching, interpretation and compilation+
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# Default compile threshold for lambdaforms is 30+
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#FLAGS="-Djava.lang.invoke.MethodHandle.COMPILE_THRESHOLD=3 -Djava.lang.invoke.MethodHandle.DUMP_CLASS_FILES=true -Djava.lang.invoke.MethodHandle.TRACE_METHOD_LINKAGE=true -Djava.lang.invoke.MethodHandle.TRACE_INTERPRETER=true"+
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+
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+
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# Flags to run trusted tests from the Nashorn test suite+
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#FLAGS="-Djava.security.manager -Djava.security.policy=../build/nashorn.policy -Dnashorn.debug"+
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+
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+
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# Unique timestamped file name for JFR recordings. For JFR, we also have to+
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# crank up the stack cutoff depth to 1024, because of ridiculously long lambda form+
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# stack traces.+
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#+
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# It is also recommended that you go into $JAVA_HOME/jre/lib/jfr/default.jfc and+
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# set the "method-sampling-interval" Normal and Maximum sample time as low as you+
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# can go (10 ms on most platforms). The default is normally higher. The increased+
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# sampling overhead is usually negligible for Nashorn runs, but the data is better+
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+
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JFR_FILENAME="./nashorn_$(date|sed "s/ /_/g"|sed "s/:/_/g").jfr"+
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+
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+
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# Directory where to look for nashorn.jar in a dist folder. The default is "..", assuming+
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# that we run the script from the make dir+
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DIR=..+
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NASHORN_JAR=$DIR/dist/nashorn.jar+
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+
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+
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# The built Nashorn jar is placed first in the bootclasspath to override the JDK+
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# nashorn.jar in $JAVA_HOME/jre/lib/ext. Thus, we also need -esa, as assertions in+
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# nashorn count as system assertions in this configuration+
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+
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# Type profiling default level is 111, 222 adds some compile time, but is faster+
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+
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$JAVA_HOME/bin/java \+
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$FLAGS \+
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-ea \+
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-esa \+
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-Xbootclasspath/p:$NASHORN_JAR \+
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-Xms2G -Xmx2G \+
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-XX:TypeProfileLevel=222 \+
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-cp $CLASSPATH:../build/test/classes/ \+
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jdk.nashorn.tools.Shell ${@}+
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+
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# Below are flags that may come in handy, but aren't used for default runs+
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+
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# Testing out new code optimizations using the generic hotspot "new code" parameter+
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#-XX:+UnlockDiagnosticVMOptions \+
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#-XX:+UseNewCode \+
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+
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# Flight recorder+
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#-XX:+UnlockCommercialFeatures \+
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#-XX:+FlightRecorder \+
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#-XX:FlightRecorderOptions=defaultrecording=true,disk=true,dumponexit=true,dumponexitpath=$JFR_FILENAME,stackdepth=1024 \+
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+
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+
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# Type specialization and math intrinsic replacement should be enabled by default in 8u20 and nine,+
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# keeping this flag around for experimental reasons. Replace + with - to switch it off+
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#-XX:+UseTypeSpeculation \+
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+
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+
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# Same with math intrinsics. They should be enabled by default in 8u20 and 9+
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#-XX:+UseMathExactIntrinsics \+
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+
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+
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# Add -Dnashorn.time to time the compilation phases.+
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#-Dnashorn.time \+
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+
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+
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# Add ShowHiddenFrames to get lambda form internals on the stack traces+
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#-XX:+ShowHiddenFrames \+
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+
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+
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# Add print optoassembly to get an asm dump. This requires 1) a debug build, not product,+
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# That tired compilation is switched off, for C2 only output and that the number of+
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# compiler threads is set to 1 for determinsm.+
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#-XX:+PrintOptoAssembly -XX:-TieredCompilation -XX:CICompilerCount=1 \+
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+
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# Tier compile threasholds. Default value is 10. (1-100 is useful for experiments)+
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# -XX:IncreaseFirstTierCompileThresholdAt=XX+
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+
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