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jerrinot's improvement (#607)

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* some random changes with minimal, if any, effect

* use munmap() trick
credit: thomaswue

* some smaller tweaks

* use native image
This commit is contained in:
Jaromir Hamala
2024-01-28 11:34:28 +01:00
committed by GitHub
parent a6cd83fc98
commit d9ab36a241
3 changed files with 175 additions and 106 deletions
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9
prepare_jerrinot.sh
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@@ -16,4 +16,11 @@
#
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
# ./mvnw clean verify removes target/ and will re-trigger native image creation.
if [ ! -f target/CalculateAverage_jerrinot_image ]; then
NATIVE_IMAGE_OPTS="--gc=epsilon -O3 -march=native --enable-preview -H:InlineAllBonus=10 -H:-ParseRuntimeOptions --initialize-at-build-time=dev.morling.onebrc.CalculateAverage_jerrinot"
# Use -H:MethodFilter=CalculateAverage_jerrinot.* -H:Dump=:2 -H:PrintGraph=Network for IdealGraphVisualizer graph dumping.
native-image $NATIVE_IMAGE_OPTS -cp target/average-1.0.0-SNAPSHOT.jar -o target/CalculateAverage_jerrinot_image dev.morling.onebrc.CalculateAverage_jerrinot
fi