@ParameterizedTest
    @CsvSource(
        value = [
            "myParam, true,  '--daemon'",
            "''     , true,  '--daemon'",
            "myParam, false, '--no-daemon'",
            "''     , false, '--no-daemon'"
        ]
    )
    fun `can apply defaults to linux test configurations`(extraParameters: String, daemon: Boolean, expectedDaemonParam: String) {

    timeout: Int = 90,
    daemon: Boolean = true,
    buildJvm: Jvm = BuildToolBuildJvm,
    extraSteps: BuildSteps.() -> Unit = {}
) {
    buildType.applyDefaultSettings(os, timeout = timeout, buildJvm = buildJvm)

    buildType.killProcessStep(KILL_LEAKED_PROCESSES_FROM_PREVIOUS_BUILDS, os)
    buildType.gradleRunnerStep(model, gradleTasks, os, extraParameters, daemon)

    buildType.steps {

        gradleUserHomeDir = intTestHomeDir
        // The user home dir is not wiped out by clean. Move the daemon working space underneath the build dir so they don't pile up on CI.
        // The actual daemon registry dir will be a subfolder using the name of the distribution.
        daemonRegistry = repoRoot().dir("build/daemon")
        gradleSnippetsDir = repoRoot().dir("platforms/documentation/docs/src/snippets") // TODO use dependency management

Each process, or "runtime", applies different constraints to the code that runs in that process.
For example, each process has different supported JVMs and a different set of services available for dependency injection.

    // DISCUSS
    "EqualsGetClass", // Let's agree if we want to adopt Error Prone's idea of valid equals()
    "JdkObsolete", // Most of the checks are good, but we do not want to replace all LinkedLists without a good reason

    // NEVER
    "MissingSummary", // We have another mechanism to check Javadocs on public API
    "InjectOnConstructorOfAbstractClass", // We use abstract injection as a pattern

    val testJvmVersionParameter = "testJavaVersion"
    val testTaskParameterName = "testTask"
    val testNameParameterName = "testName"
    val testTaskOptionsParameterName = "testTaskOptions"
    val daemon = true
    applyDefaultSettings(os, arch, buildJvm = BuildToolBuildJvm, timeout = 0)

    // Show all failed tests here, since that is what we are interested in
    failureConditions.supportTestRetry = false

        "-PmaxParallelForks=$maxParallelForks",
        pluginPortalUrlOverride,
        "-s",
        "--no-configuration-cache",
        "%additional.gradle.parameters%",
        if (daemon) "--daemon" else "--no-daemon",
        if (isContinue) "--continue" else ""
    )

fun Dependencies.dependsOn(buildTypeId: RelativeId) {
    dependency(buildTypeId) {
        snapshot {

  "durations" : [ {
    "testProject" : "largeJavaMultiProjectNoBuildSrc",
    "linux" : 574
  } ]
}, {
  "scenario" : "org.gradle.performance.regression.java.JavaConfigurationCachePerformanceTest.assemble loading configuration cache state with hot daemon",
  "durations" : [ {
    "testProject" : "largeJavaMultiProjectNoBuildSrc",

                    logger.lifecycle("Removing old cache directory : $stateDir")
                    delete { delete(stateDir) }
                }
            }
        }
    }
}


/**
 * Clean up daemon log files produced in integration tests.
 */
fun FileSystemOperations.removeDaemonLogFiles(dir: Directory) {
    if (dir.asFile.isDirectory) {
        val daemonLogFiles = dir.asFileTree.matching {

# Build state model

The Gradle daemon tracks state for various elements. These are arranged in a hierarchy:

```mermaid
  graph TD

  process["build process"]
  
  session["build session"]
  process --> session
  
  build_tree["build tree"]
  session --> build_tree
  
  build1["root build"]
  build_tree --> build1
  
  project1["root project"]
  build1 --> project1
  
  project2["project"]
  build1 --> project2