diff options
Diffstat (limited to 'calculate_average_ddimtirov.sh')
| -rwxr-xr-x | calculate_average_ddimtirov.sh | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/calculate_average_ddimtirov.sh b/calculate_average_ddimtirov.sh index d463991..f69b3f0 100755 --- a/calculate_average_ddimtirov.sh +++ b/calculate_average_ddimtirov.sh @@ -1,4 +1,4 @@ -#!/bin/sh +#!/bin/bash # # Copyright 2023 The original authors # @@ -15,9 +15,12 @@ # limitations under the License. # +# also tried: 23.ea.3-open, 21.0.1-graalce, 21.0.1-graal, 21.0.1.crac-librca (tried CRaC API to see if it preserves JIT state) +. "$HOME/.sdkman/bin/sdkman-init.sh" +sdk use java 21.0.1-tem + # --enable-preview to use the new memory mapped segments # We don't allocate much, so just give it 1G heap and turn off GC; the AlwaysPreTouch was suggested by the ergonomics -JAVA_OPTS="--enable-preview -da -dsa -Xms1g -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+AlwaysPreTouch" +# Experimenting on the target VM config with various memory tweaks showed that UseTransparentHugePages gives us 10% boost +JAVA_OPTS="--enable-preview -da -dsa -Xms1g -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+AlwaysPreTouch -XX:+UseTransparentHugePages" time java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_ddimtirov - -# & "$Env:JAVA_HOME/bin/java" --enable-preview -Xms1g -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+AlwaysPreTouch --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_ddimtirov |