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| author | Roman Musin <995612+roman-r-m@users.noreply.github.com> | 2024-01-23 19:19:07 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-01-23 20:19:07 +0100 |
| commit | 6c0949969a5df71df85397ce3338f0154e6727ac (patch) | |
| tree | 852da4358648ab1992372230c16d2abc57bd3c82 /calculate_average_roman-r-m.sh | |
| parent | ba793e88cd3c1b7767e00180c721b85cf5c50e28 (diff) | |
Native image + a few smaller optimisations (#564)
* Inline parsing name and station to avoid constantly updating the offset field (-100ms)
* Remove Worker class, inline the logic into lambda
* Accumulate results in an int matrix instead of using result row (-50ms)
* Use native image
Diffstat (limited to 'calculate_average_roman-r-m.sh')
| -rwxr-xr-x | calculate_average_roman-r-m.sh | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/calculate_average_roman-r-m.sh b/calculate_average_roman-r-m.sh index b5d0b3d..acf9864 100755 --- a/calculate_average_roman-r-m.sh +++ b/calculate_average_roman-r-m.sh @@ -21,4 +21,15 @@ JAVA_OPTS="--enable-preview -XX:+UseTransparentHugePages" # see https://stackoverflow.com/questions/58087596/why-are-repeated-memory-allocations-observed-to-be-slower-using-epsilon-vs-g1 JAVA_OPTS="$JAVA_OPTS -XX:+UnlockExperimentalVMOptions -XX:-EnableJVMCI -XX:+UseEpsilonGC -Xmx1G -Xms1G -XX:+AlwaysPreTouch" -java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_roman_r_m +if [ -f target/CalculateAverage_roman_r_m_image ]; then + echo "Picking up existing native image 'target/CalculateAverage_roman_r_m_image', delete the file to select JVM mode." 1>&2 + target/CalculateAverage_roman_r_m_image +else + JAVA_OPTS="--enable-preview -XX:+UnlockExperimentalVMOptions -XX:+TrustFinalNonStaticFields -dsa -XX:+UseNUMA" + if [[ ! "$(uname -s)" = "Darwin" ]]; then + # On OS/X, my machine, this errors: + JAVA_OPTS="$JAVA_OPTS -XX:+UseTransparentHugePages" + fi + echo "Choosing to run the app in JVM mode as no native image was found, use additional_build_step_roman_r_m.sh to generate." 1>&2 + java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_roman_r_m +fi |