DroidJitChecker

What's it

• It's a tool that checks whether your java methods is jit-friendly or not
• It will output a html file that represents the result.

Requirement

• Your Android project should be able to be built via Gradle
• jitwatch suits
• Ruby Runtime

##Setup ###Install jitWatch ####Get the source

git clone [email protected]:AdoptOpenJDK/jitwatch.git

####Build
Use only one of the following three methods.

Method 1:ant

ant clean compile test run

Method 2:maven

mvn clean compile test exec:java

Method 3:gradle

gradlew clean build run

###Configure the tool Clone the current repo and then configure the config.ini file

[setup]
jarScan = "/Users/androidyue/github/jitwatch/jarScan.sh"
maxMethodSize = 325
outputDir = "/tmp/DroidJitChecker/output_new/"

Some explanations

• jarScan Must modified, Use your jitwatch path instead
• maxMethodSize No need to modify. Please be careful if you want to change this
• outputDir can be modified as any valid directory path.

##How to use it Open your terminal and input the commend like the following

ruby jitChecker.rb your_android_project jarTask

Note: the jarTask is a task that will create a jar file for the analysis. You can find the jar tasks by performing ./gradlew tasks. And select one of the tasks starting with jar

##View the results

• After the execution of the above command, It will automatically open the result file in a browser.
• You can still see the result file path in the console
• The result file name is related to the jarTask.
• The result is sorted by byteSize and in a descending order.

The content of the result may like this

MD4.mdfour64

Package:com.app.utils
Parameters:int[]
ByteSize:1129

• MD4.mdfour64 indicates the methods and its belonging class
• Package:com.app.utils indicates where the MD4 class is placed
• Parameters:int[] indicates what parameters the method mdfour64 receives
• ByteSize:1129 indicates how much bytes the method mdfour64 holds

##How to correct Write straight, simple code
Write straight, simple code
Write straight, simple code

##Contribute Any ideas and helpful codes will be appreciated.

The following contribution(s) is(are) welcomed

• Make the result appearance beautiful(using CSS files)