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Tuning and subprocess spawn for thomaswue (#533)

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* Some clean up, small-scale tuning, and reduce complexity when handling longer names.

* Do actual work in worker subprocess. Main process returns immediately
and OS clean up of the mmap continues in the subprocess.

* Update minor Graal version after CPU release.

* Turn GC back to epsilon GC (although it does not seem to make a
difference).

* Minor tuning for another +1%.
This commit is contained in:
Thomas Wuerthinger
2024-01-21 20:13:48 +01:00
committed by GitHub
parent 6b95ac6113
commit d0a28599c2
2 changed files with 99 additions and 72 deletions
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4
prepare_thomaswue.sh
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@@ -16,11 +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_thomaswue_image ]; then
NATIVE_IMAGE_OPTS="--gc=epsilon -O3 -march=native --enable-preview"
NATIVE_IMAGE_OPTS="--gc=epsilon -O3 -march=native --enable-preview -H:InlineAllBonus=10 -H:-ParseRuntimeOptions --initialize-at-build-time=dev.morling.onebrc.CalculateAverage_thomaswue\$Scanner"
# Use -H:MethodFilter=CalculateAverage_thomaswue.* -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_thomaswue_image dev.morling.onebrc.CalculateAverage_thomaswue
fi