String Deduplication Log Parser

Parses HotSpot string deduplication logs.

License	MIT
GroupId	com.github.marschall
ArtifactId	string-dedup-parser
Last Version	0.3.0
Release Date	Jul 3, 2017
Type	jar
Description	String Deduplication Log Parser Parses HotSpot string deduplication logs.
Project URL	https://github.com/marschall/string-dedup-parser
Source Code Management	https://github.com/marschall/string-dedup-parser

Download string-dedup-parser

Filename	Size
string-dedup-parser-0.3.0.pom
string-dedup-parser-0.3.0.jar	27 KB
string-dedup-parser-0.3.0-sources.jar	6 KB
string-dedup-parser-0.3.0-javadoc.jar	32 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.github.marschall/string-dedup-parser/ -->
<dependency>
    <groupId>com.github.marschall</groupId>
    <artifactId>string-dedup-parser</artifactId>
    <version>0.3.0</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.github.marschall/string-dedup-parser/
implementation 'com.github.marschall:string-dedup-parser:0.3.0'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.github.marschall/string-dedup-parser/
implementation ("com.github.marschall:string-dedup-parser:0.3.0")

Apache Buildr

'com.github.marschall:string-dedup-parser:jar:0.3.0'

Apache Ivy

<dependency org="com.github.marschall" name="string-dedup-parser" rev="0.3.0">
  <artifact name="string-dedup-parser" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.github.marschall', module='string-dedup-parser', version='0.3.0')
)

Scala SBT

libraryDependencies += "com.github.marschall" % "string-dedup-parser" % "0.3.0"

Leiningen

[com.github.marschall/string-dedup-parser "0.3.0"]

Dependencies

compile (2)

Group / Artifact	Type	Version
com.github.marschall : line-parser	jar	0.4.2
com.github.marschall : charsequences	jar	0.4.2

provided (1)

Group / Artifact	Type	Version
junit : junit	jar	4.12

Project Modules

There are no modules declared in this project.

String Deduplication Log Parser

A parser for HotSpot string deduplication logs. Tested with JDK 8 and JDK 9.

Usage

Download string-dedup-parser-0.3.0-shaded.jar

Run the JAR with log file to parse as the first command line argument

java -jar string-dedup-parser-0.3.0-shaded.jar src/test/resources/middleware.log

the output will look something like this

total memory saved 162.1M in 148 deduplications

To get the logs you to to run at least with

-XX:+UseStringDeduplication -XX:+UseG1GC -XX:+PrintGC -XX:+PrintGCDetails

as string deduplication is only available with G1.

Versions

Version
0.3.0 Jul 3, 2017
0.2.3 Feb 5, 2017
0.2.1 Jan 9, 2017
0.2.0 Dec 30, 2016
0.1.0 Nov 27, 2016