Is there any support for sbt 1.x ?

raffaell...@gmail.com

unread,

May 6, 2019, 8:23:01 PM5/6/19

to ScalaMeter

Hi,

I tried to use Scalameter with SBT 1.2 and i have unexpected behavior running with a bench:test as reported in the example.

The error reported was: "unable to create a system terminal".

Furthermore the computation is hanging on forever.... it should not last more than few seconds.

Is it something that i misconfigured?

Looking at the source code, the examples are failing to pass CI and even the sbt version used is still 0.13.

Does Scalameter support SBT 1.x and Scala 2.12.8 [and JVM 11]?

thanks

Aleksandar Prokopec

unread,

May 7, 2019, 7:58:18 AM5/7/19

to ScalaMeter

Hi,

Did you try the instructions for SBT from:

https://scalameter.github.io/home/download/

In particular:

fork := true

outputStrategy := Some(StdoutOutput)

connectInput := true

This should enable the use of JLine when forking programs from SBT.

Thanks,

Alex

Raffaello Bertini

unread,

May 13, 2019, 5:35:49 PM5/13/19

to ScalaMeter

yes.
I tried:
build.properties: sbt.version = 1.2.7

benchmark test (like the example basic):

package benchmark

import org.scalameter.api._

object Array2dClone extends Bench.LocalTime {
  val ranges = for {
    size <- sizes
  } yield 0 until size

  performance of "Range" in {
    measure method "map" in {
      using(ranges) in {
        r => r.map(_ + 1)
      }
    }
  }
}

build.sbt
basic version in test folder:

name := "tic-tac-toe"
version := "0.1"
scalaVersion := "2.12.8"

libraryDependencies += "org.scalactic" %% "scalactic" % "3.0.5"
libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.5" % "test"
libraryDependencies += "org.scalacheck" %% "scalacheck" % "1.14.0" % "test"
libraryDependencies += "com.typesafe" % "config" % "1.3.2"

// ---- scalameter
// see: https://github.com/scalameter/scalameter-examples/blob/master/basic-with-separate-config/build.sbt
resolvers ++= Seq(
  "Sonatype OSS Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots",
  "Sonatype OSS Releases" at "https://oss.sonatype.org/content/repositories/releases"
)

libraryDependencies += "com.storm-enroute" %% "scalameter" % "0.17"
testFrameworks += new TestFramework("org.scalameter.ScalaMeterFramework")
parallelExecution in Test := false
logBuffered := false

fork := true
outputStrategy := Some(StdoutOutput)
connectInput := true

// --- end - scalameter

OUTPUT:

Unable to create a system terminal

[error] Uncaught exception when running benchmark.Array2dClone: java.lang.RuntimeException: Cannot recognize classloader (not URLClassLoader): jdk.internal.loader.ClassLoaders$AppClassLoader@6e5e91e4

[error] sbt.ForkMain$ForkError: java.lang.RuntimeException: Cannot recognize classloader (not URLClassLoader): jdk.internal.loader.ClassLoaders$AppClassLoader@6e5e91e4

[error] at scala.sys.package$.error(package.scala:30)

[error] at org.scalameter.ScalaMeterFramework$$anon$1.$anonfun$computeClasspath$1(ScalaMeterFramework.scala:56)

[error] at org.scalameter.utils.ClassPath$.extract(ClassPath.scala:77)

[error] at org.scalameter.ScalaMeterFramework$$anon$1.computeClasspath(ScalaMeterFramework.scala:55)

[error] at org.scalameter.ScalaMeterFramework$$anon$1.run(ScalaMeterFramework.scala:73)

[error] at sbt.RunnerWrapper$1.runRunner2(FrameworkWrapper.java:230)

[error] at sbt.RunnerWrapper$1.execute(FrameworkWrapper.java:243)

[error] at sbt.ForkMain$Run.lambda$runTest$1(ForkMain.java:304)

[error] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)

[error] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

[error] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

[error] at java.base/java.lang.Thread.run(Thread.java:834)

---------------------------------------------------------------------------------------------------

with advanced sbt 1.x configuration:

lazy val Benchmark = config("bench") extend Test
lazy val root = (project in file("."))
    .configs(Benchmark)
    .settings(
      inConfig(Benchmark)(Defaults.testSettings): _*
    )

scalaVersion := "2.12.8"
scalacOptions += "-Ypartial-unification"
scalacOptions += "-Xdisable-assertions"
javacOptions += "--illegal-access=warn"

libraryDependencies += "org.scalactic" %% "scalactic" % "3.0.5"
libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.5" % "test"
libraryDependencies += "org.scalacheck" %% "scalacheck" % "1.14.0" % "test"
libraryDependencies += "com.typesafe" % "config" % "1.3.2"

// ---- scalameter
// see: https://github.com/scalameter/scalameter-examples/blob/master/basic-with-separate-config/build.sbt
resolvers ++= Seq(
  "Sonatype OSS Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots",
  "Sonatype OSS Releases" at "https://oss.sonatype.org/content/repositories/releases"
)

libraryDependencies += "com.storm-enroute" %% "scalameter" % "0.17" % "bench"
libraryDependencies += "com.storm-enroute" %% "scalameter-core" % "0.17" % "bench"
testFrameworks += new TestFramework("org.scalameter.ScalaMeterFramework")
parallelExecution in Benchmark := false
logBuffered := false

fork := true
outputStrategy := Some(StdoutOutput)
connectInput := true

// --- end - scalameter

OUTPUT (the same):