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Android - More Speed up Building with Gradle

May 20th, 2015 - Software(1 min)

In my previous post I described one thing you can easily do to improve the build speed, namely enabling the gradle daemon. In the meantime, things improved quite a bit:

  • Gradle 2.4 (at the moment of writing) has better speed
  • You can run things in parallel now like other build tools (e.g. make)
  • You can use the “configure on demand” feature even though AS complains a bit about it

How do you make it work? Here are the steps:

Using Gradle 2.4

I’ve enabled gradle 2.4 for my project and I had no negative side-effects so far. I used the following steps:

  • If you’re using the gradle wrapper, edit the version in your AS project’s properties:

gradle-wrapper

Alternatively, you can edit the wrapper properties file by hand (in <project_dir>/gradle/wrapper/gradle-wrapper.properties). My wrapper file looks like this:

#Wed Apr 29 11:52:05 CEST 2015
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip
  • Alternatively, download and install gradle 2.4 and configure AS to use it:

gradle

This works well with the daemon option

In my main build.gradle file, I’ve got also a wrapper task appended:

task wrapper(type: Wrapper) {
    gradleVersion = '2.4'
}

You can try without, particularly if you’re not using the wrapper :)

More Configuration

In addition to the daemon configuration, you can add the parallel and “on demand” options. Now, my global gradle file looks like this:

org.gradle.daemon=true
org.gradle.parallel=true
org.gradle.configureondemand=true

César Ferreira also adds VM tweaks (e.g. higher MaxPermSize). However, I haven’t seen any improvement from doing that for my project.

More stuff

If you’re just hobby developing, this should be OK for a while. Otherwise, you can look for more at César’s tweaks and tips.

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A little experiment: