if err != nil {
		return "", err
	}

	// Limit the number of frames we request.
	pcs = pcs[:min(len(pcs), 16)]

	if len(pcs) == 0 {
		// This can occur if all goroutines are idle, as when
		// caught in a deadlock, or killed by an async signal
		// while blocked.
		//
		// TODO(adonovan): consider how to report such
		// situations. Reporting a goroutine in [sleep] or

Blocking APIs may be inefficient because you hold a thread idle while waiting on the network. Threads are expensive because they have both a memory overhead and a context-switching overhead.

#### Framed protocols

                                  format: int32
                                  type: integer
                                idleTimeout:
                                  description: The idle timeout for upstream connection
                                    pool connections.
                                  type: string
                                maxConcurrentStreams:

====

When a unit of work for a worker daemon is submitted, Gradle will first look to see if a compatible, idle daemon already exists.
If so, it will send the unit of work to the idle daemon, marking it as busy.
If not, it will start a new daemon.

pkg net, type KeepAliveConfig struct #62254
pkg net, type KeepAliveConfig struct, Count int #62254
pkg net, type KeepAliveConfig struct, Enable bool #62254
pkg net, type KeepAliveConfig struct, Idle time.Duration #62254
pkg net, type KeepAliveConfig struct, Interval time.Duration #62254
pkg net, type ListenConfig struct, KeepAliveConfig KeepAliveConfig #62254
pkg net/http, func ParseCookie(string) ([]*Cookie, error) #66008

 * thread, which yields its execution privilege while calling [runTasks], [runNextTask], or
 * [advanceUntil]. These functions don't return until the task threads are all idle.
 *
 * Task threads release their execution privilege in these ways:
 *
 *  * By yielding in [TaskRunner.Backend.coordinatorWait].
 *  * By yielding in [BlockingQueue.poll].
 *  * By completing.
 */

      encodings[ 0x13] = encoding // Device Control 3 (oft. XOFF)
      encodings[ 0x14] = encoding // Device Control 4
      encodings[ 0x15] = encoding // Negative Acknowledgment
      encodings[ 0x16] = encoding // Synchronous idle
      encodings[ 0x17] = encoding // End of Transmission Block
      encodings[ 0x18] = encoding // Cancel
      encodings[ 0x19] = encoding // End of Medium
      encodings[ 0x1a] = encoding // Substitute

        //(SF) this is a workaround until this story is completed. I'm hardcoding setting the idle timeout to be max X mins.
        //this way we avoid potential runaway daemons that steal resources on linux and break builds on windows.
        //We might leave that in if we decide it's a good idea for an extra safety net.

When set to `true` the <<gradle_daemon.adoc#gradle_daemon, Gradle Daemon>> is used to run the build.
+
_Default is `true`._

`org.gradle.daemon.idletimeout=(# of idle millis)`::
Gradle Daemon will terminate itself after a specified number of idle milliseconds.
+
_Default is `10800000` (3 hours)._

`org.gradle.debug=(true,false)`::

${COMMON_HINT}""")
    }

    @ToBeFixedForConfigurationCache(because = "Gradle.buildFinished")
    def "expires daemon when heap leaks while daemon is idle"() {
        def initial = 256
        def max = 512
        def events = eventsFor(initial, max, 35, garbageCollector.monitoringStrategy.gcRateThreshold + 0.2)
        def initScript = file("init.gradle")