neoremind / 2018-polar-race

1st AliCloud Database Performance Competition in 2018 - Java rank No.1 source code 阿里云2018年第一届PolarDB数据库性能大赛Java排名第一源码

天池大赛-阿里云2018年第一届PolarDB数据库性能大赛分享

天池比赛链接

赛题描述

解题报告长文

How to build

cd engine_java && mvn assembly:assembly

How to run

默认只能在Linux上运行（因为使用了JNA的Direct I/O）。

Write:

java -server -XX:-UseBiasedLocking -Xms2000m -Xmx2000m -XX:NewSize=1400m -XX:MaxMetaspaceSize=32m -XX:MaxDirectMemorySize=1G -XX:+UseG1GC -cp engine_java-0.0.1-SNAPSHOT-jar-with-dependencies.jar com.alibabacloud.polar_race.engine.common.neoremind.benchmark.BenchMark2 64 1000000 8 4096 /please/set/directory 1

Read:

java -server -XX:-UseBiasedLocking -Xms2000m -Xmx2000m -XX:NewSize=1400m -XX:MaxMetaspaceSize=32m -XX:MaxDirectMemorySize=1G -XX:+UseG1GC -cp engine_java-0.0.1-SNAPSHOT-jar-with-dependencies.jar com.alibabacloud.polar_race.engine.common.neoremind.benchmark.BenchMark2 64 1000000 8 4096 /please/set/directory 2

Range:

java -server -XX:-UseBiasedLocking -Xms2000m -Xmx2000m -XX:NewSize=1400m -XX:MaxMetaspaceSize=32m -XX:MaxDirectMemorySize=1G -XX:+UseG1GC -cp engine_java-0.0.1-SNAPSHOT-jar-with-dependencies.jar com.alibabacloud.polar_race.engine.common.neoremind.benchmark.BenchMark2 64 1000000 8 4096 /please/set/directory 2

Note:

64 1000000 8 4096 表示64并发，每个线程100w kv，key 8B，value 4K