image::performance/parallel-task-slow.png[title="Bottleneck in parallel execution"]

Tweaking the build configuration to run the two slow tasks early on and in parallel
reduces the overall build time from 8 seconds to 5 seconds:

image::performance/parallel-task-fast.png[title="Optimized parallel execution"]

[[enable_daemon]]
== Re-enable the Gradle Daemon

// Since the Dial to kms-plugin is non-blocking we expect the construction of gRPC service to succeed even when
// kms-plugin is not yet up - dialing happens in the background.
func TestKMSPluginLateStart(t *testing.T) {
	t.Parallel()
	callTimeout := 3 * time.Second
	s := newEndpoint()

	ctx := testContext(t)

	service, err := NewGRPCService(ctx, s.endpoint, testProviderName, callTimeout)
	if err != nil {

					}
				}
			})

			// Stop the servers.
			parallel(servers, func(server *EtcdMigrateServer) {
				err := server.Stop()
				if err != nil {
					t.Fatalf("Failed to stop server: %v", err)
				}
			})

			// Check that version.txt contains the correct end version.
			parallel(servers, func(server *EtcdMigrateServer) {

         """
    }

    def "link task is executed in parallel"() {
        createTaskThatRunsInParallelUsingCustomToolchainWith("linkDebug")

        when:
        succeeds "assemble", "parallelTask"

        then:
        assertTaskIsParallel("linkDebug")
    }

    def "compile task is executed in parallel"() {
        createTaskThatRunsInParallelUsingCustomToolchainWith("compileDebugSwift")

	}
	// The msan tests require support for the -msan option.
	if !compilerRequiredTsanVersion(goos, goarch) {
		t.Skipf("skipping on %s/%s; compiler version for -tsan option is too old.", goos, goarch)
	}

	t.Parallel()
	requireOvercommit(t)
	config := configure("thread")
	config.skipIfCSanitizerBroken(t)

	mustRun(t, config.goCmd("build", "std"))

	cases := []struct {
		src          string
		needsRuntime bool
	}{

                <artifactId>maven-surefire-plugin</artifactId>
                <!--<version>2.5</version>-->
                <!--<configuration>-->
                    <!--<parallel>classes</parallel>-->
                    <!--<threadCount>4</threadCount>-->
                <!--</configuration>-->
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>

		os.Exit(1)
	}
	fmt.Println(pwd)
}

func TestCredentialNoSetGroups(t *testing.T) {
	if runtime.GOOS == "android" {
		maySkipHelperCommand("echo")
		t.Skip("unsupported on Android")
	}
	t.Parallel()

	u, err := user.Current()
	if err != nil {
		t.Fatalf("error getting current user: %v", err)
	}

	uid, err := strconv.Atoi(u.Uid)
	if err != nil {

# tests seed values and the worker tests mutated values on the fuzz target.

[short] skip
env GOCACHE=$WORK/cache

go test -fuzz=FuzzA -fuzztime=100x -parallel=1 -log=fuzz
go run check_logs.go fuzz fuzz.worker

# TODO(b/181800488): remove -parallel=1, here and below. For now, when a
# crash is found, all workers keep running, wasting resources and reducing
# the number of executions available to the minimizer, increasing flakiness.

	func (c *T) Log(args ...any)

	// Logf formats its arguments according to the format, analogous ...
	func (c *T) Logf(format string, args ...any)

	// Parallel signals that this test is to be run in parallel with ...

		t.Skipf("not supported on %s", runtime.GOOS)
	}

	t.Parallel()

	ln := newLocalListener(t, "tcp")
	defer func() {
		if err := ln.Close(); err != nil {
			t.Error(err)
		}
	}()

	for _, tt := range dialTimeoutTests {
		t.Run(fmt.Sprintf("%v/%v", tt.initialTimeout, tt.initialDelta), func(t *testing.T) {
			// We don't run these subtests in parallel because we don't know how big