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Use GraalVM native image for ebarlas submission. #698

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Jan 31, 2024
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Use GraalVM native image for ebarlas submission. #698

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9 changes: 7 additions & 2 deletions calculate_average_ebarlas.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -15,5 +15,10 @@
# limitations under the License.
#

JAVA_OPTS="--enable-preview"
java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_ebarlas
if [ -f target/CalculateAverage_ebarlas_image ]; then
echo "Picking up existing native image 'target/CalculateAverage_ebarlas_image', delete the file to select JVM mode." 1>&2
target/CalculateAverage_ebarlas_image
else
echo "Choosing to run the app in JVM mode as no native image was found, use prepare_ebarlas.sh to generate." 1>&2
java --enable-preview --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_ebarlas
fi
7 changes: 6 additions & 1 deletion prepare_ebarlas.sh
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Expand Up @@ -16,4 +16,9 @@
#

source "$HOME/.sdkman/bin/sdkman-init.sh"
sdk use java 21.0.1-graal 1>&2
sdk use java 21.0.2-graal 1>&2

if [ ! -f target/CalculateAverage_ebarlas_image ]; then
NATIVE_IMAGE_OPTS="-H:+UnlockExperimentalVMOptions --initialize-at-build-time=dev.morling.onebrc.CalculateAverage_ebarlas --gc=epsilon -O3 -march=native -R:MaxHeapSize=128m -H:-GenLoopSafepoints --enable-preview"
native-image $NATIVE_IMAGE_OPTS -cp target/average-1.0.0-SNAPSHOT.jar -o target/CalculateAverage_ebarlas_image dev.morling.onebrc.CalculateAverage_ebarlas
fi
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