Start up time in sbt 1.0.0-RC2 is slower

jvican in /data/rw/code/scala/experiment-performance                                                         [12:04:03] 
> $ vim project/build.properties // change to 0.13.16-M1
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:04:11] 
> $ time sbt "exit"             
[info] Loading global plugins from /home/jvican/.sbt/0.13/plugins
[info] Updating {file:/home/jvican/.sbt/0.13/plugins/}global-plugins...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Compiling 1 Scala source to /home/jvican/.sbt/0.13/plugins/target/scala-2.10/sbt-0.13/classes...
[info] Loading project definition from /data/rw/code/scala/experiment-performance/project
[info] Updating {file:/data/rw/code/scala/experiment-performance/project/}experiment-performance-build...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Set current project to experiment-performance (in build file:/data/rw/code/scala/experiment-performance/)
/home/jvican/bin/sbt "exit"  39.40s user 0.70s system 321% cpu 12.476 total
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:04:26] 
> $ time sbt "exit"
[info] Loading global plugins from /home/jvican/.sbt/0.13/plugins
[info] Loading project definition from /data/rw/code/scala/experiment-performance/project
[info] Set current project to experiment-performance (in build file:/data/rw/code/scala/experiment-performance/)
/home/jvican/bin/sbt "exit"  13.05s user 0.25s system 296% cpu 4.493 total
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:04:33] 
> $ time sbt "exit"
[info] Loading global plugins from /home/jvican/.sbt/0.13/plugins
[info] Loading project definition from /data/rw/code/scala/experiment-performance/project
[info] Set current project to experiment-performance (in build file:/data/rw/code/scala/experiment-performance/)
/home/jvican/bin/sbt "exit"  12.64s user 0.26s system 294% cpu 4.385 total
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:04:48] 
> $ vim project/build.properties // change to sbt 1.0.0-RC2
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:04:54] 
> $ time sbt "exit"             
[info] Loading project definition from /data/rw/code/scala/experiment-performance/project

[info] Loading settings from build.sbt ...

[info] Set current project to experiment-performance (in build file:/data/rw/code/scala/experiment-performance/)

/home/jvican/bin/sbt "exit"  22.35s user 0.34s system 291% cpu 7.778 total
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:05:04] 
> $ time sbt "exit"
[info] Loading project definition from /data/rw/code/scala/experiment-performance/project

[info] Loading settings from build.sbt ...

[info] Set current project to experiment-performance (in build file:/data/rw/code/scala/experiment-performance/)

/home/jvican/bin/sbt "exit"  14.34s user 0.29s system 267% cpu 5.477 total
                                                                                                                        
jvican in /data/rw/code/scala/experiment-performance                                                         [12:05:13] 
> $ time sbt "exit"
[info] Loading project definition from /data/rw/code/scala/experiment-performance/project

[info] Loading settings from build.sbt ...

[info] Set current project to experiment-performance (in build file:/data/rw/code/scala/experiment-performance/)

/home/jvican/bin/sbt "exit"  13.74s user 0.22s system 266% cpu 5.247 total
                                                                            

We have to figure out why. The tested project has the following build.sbt:

name := "experiment-performance"
organization := "ch.epfl.scala"
libraryDependencies ++= List(
  "io.circe" %% "circe-core" % "0.8.0",
  "io.circe" %% "circe-generic" % "0.8.0",
  "io.circe" %% "circe-parser" % "0.8.0",
  "com.chuusai" %% "shapeless" % "2.3.2"
)

[yellowmegaman]

Any news here?

[info] Updating ProjectRef(uri("file:/drone/src/bitbucket.org/someteam/somrepo/someproject/"), "server-build")... 
  46s
[info] Done updating.   766s

sbt 1.1.4

So it’s 720 seconds really ((

[schmitch]

this is even worse on first runs (which might often happen in docker build-Environments). The sbt 1.x.x builds hanging forever at Loading project definition from. Well at least dependency resolution is faster when coursier is plugged in…