sbt-jfr is an sbt plugin to configure Java Flight Recorder via command-line arguments.
Add the following settings to your project/plugins.sbt:
addSbtPlugin("nl.zolotko.sbt" % "sbt-jfr" % "latest.release")The latest version is
An example of build.sbt with two JFR recordings and overridden JFR recorder options:
import nl.zolotko.sbt.jfr.{JfrRecording, JfrRecorderOptions}
import scala.concurrent.duration.DurationInt
lazy val root = (project in file("."))
.settings(
version := "0.1",
scalaVersion := "2.13.5",
jfrRecordings := Seq(
JfrRecording(),
JfrRecording(
delay = 20.seconds.some,
disk = true.some,
dumpOnExit = true.some,
duration = 30.seconds.some,
fileName = file("test-jfr-recording").toPath.some,
name = "test-jfr-recording".some,
maxAge = 1.minute.some,
maxSize = 524288L.some,
pathToGcRoots = true.some,
settings = file("settings.jfc").toPath.some
)
),
jfrRecorderOptions := JfrRecorderOptions(
globalBufferSize = 524288L.some,
maxChunkSize = 10485760L.some,
memorySize = 20971520L.some,
numGlobalBuffers = 40.some,
oldObjectQueueSize = 512L.some,
repository = file("jfr-repository").toPath.some,
retransform = true.some,
sampleThreads = true.some,
stackDepth = 96.some,
threadBufferSize = 16384L.some
).some,
fork := true
)sbt scripted