1brc/calculate_average_yonatang.sh
Yonatan Graber e1a0b79259
yonatang solution: a jdk8 friendly, no unsafe code, epsilon-gc friendly solution (#499)
* 1bc challenge, but one that will run using jdk 8 without unsafe and still do reasonably well.

* Better hashtable

* the fastest GC is no GC

* cleanups

* increased hash size

* removed Playground.java

* collision-handling allocation free hashmap

* formatting
2024-01-20 15:02:55 +01:00

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#!/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.
#
# GC is overrated
JAVA_OPTS="-XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+AlwaysPreTouch -Xms512m -Xmx512m"
java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_yonatang