Hi. I have a code base which is a mix of Scala and Java source code. I am currently using Gradle 2.11 and would like to upgrade to a more recent version. Before upgrading I’ve done some measurements and I’ve found compilation to be much slower in Gradle 2.12 than in 2.11. A clean build takes aroun…

Using this in build.gradle in Gradle 2.12+ gives me performance similar to that of Gradle 2.11: tasks.withType(ScalaCompile) { scalaCompileOptions.useAnt = true } This is deprecated though, and will be removed in Gradle 3.0. Any other solutions are more than welcome. Thanks, Jacob

We just upgraded to from 2.10 to 3.0 and are also seeing a major performance drop when having switched to the Zinc compiler. Assembling our project, which currently is a multiproject setup with about 50 subprojects, previously took about 1.5mins when running in parallel mode (about an extra minute …

I haven’t found any ways to improve it but in the near future I plan to investigate this a bit more - maybe trying to upgrade to a more recent version of Zinc. We also see worse performance when running in parallel.

I’ve tried the latest and greatest version available (which currently seems to be 0.3.12), but it does unfortunately not make any difference for me.

You might want to try out https://github.com/sbt/zinc which is the successor to https://github.com/typesafehub/zinc

Gradle’s Scala compile-task seems to explicitly require the typesafe-version. I guess it would be possible to create a custom task or something, but I’d rather use what “natively” supported!

Slow Scala compilation in Gradle 2.12 and later

Help/Discuss

jacobilsoe (Jacob Ilsø) September 8, 2016, 7:42am 8

OK, thanks for trying that out. I created this bug report: Scala compilation performance decrease in Gradle 2.12+

Topic		Replies	Views
Scala compilation performance decrease in Gradle 2.12+ Bugs	1	1032	September 12, 2016
New version of Zinc incremental compiler for Scala Help/Discuss	1	1818	July 3, 2018
Default Scala Compiler Doesn't Work in Gradle 2.12 & Scala 2.11 Bugs gradle-3443 , issue-acknowledged	6	7332	May 25, 2016
Gradle 6.6 Scala zincVersion override does not work Help/Discuss	0	502	October 20, 2020
Exception when using zinc for scala project Old Forum Archive	5	2977	January 29, 2013

Slow Scala compilation in Gradle 2.12 and later

Related topics