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Diffstat (limited to 'calculate_average_obourgain.sh')
| -rwxr-xr-x | calculate_average_obourgain.sh | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/calculate_average_obourgain.sh b/calculate_average_obourgain.sh new file mode 100755 index 0000000..67c91b3 --- /dev/null +++ b/calculate_average_obourgain.sh @@ -0,0 +1,31 @@ +#!/bin/sh +# +# Copyright 2023 The original authors +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +# runs with -Xmx24m on my machine, playing it safe with a larger heap +JAVA_OPTS="-Xmx64m --enable-preview" +# to use some black magic options +JAVA_OPTS="$JAVA_OPTS -XX:+UnlockExperimentalVMOptions" +# no GC, not needed +JAVA_OPTS="$JAVA_OPTS -XX:+UseEpsilonGC -XX:+AlwaysPreTouch" +# my finals are really final +JAVA_OPTS="$JAVA_OPTS -XX:+TrustFinalNonStaticFields" +# to get CalculateAverage_obourgain$OpenAddressingMap::getOrCreate to inline. A compile command wasn't enough, it was still hitting 'already compiled into a big method' +JAVA_OPTS="$JAVA_OPTS -XX:InlineSmallCode=10000" +# seems to be a bit faster +JAVA_OPTS="$JAVA_OPTS -XX:-TieredCompilation -XX:CICompilerCount=2 -XX:CompileThreshold=1000" + +time java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_obourgain |