// application.
//
// scavenger.lock must be held.
func printScavTrace(releasedBg, releasedEager uintptr, forced bool) {
	assertLockHeld(&scavenger.lock)

	printlock()
	print("scav ",
		releasedBg>>10, " KiB work (bg), ",
		releasedEager>>10, " KiB work (eager), ",
		gcController.heapReleased.load()>>10, " KiB now, ",
		(gcController.heapInUse.load()*100)/heapRetained(), "% util",

		// Scavenge, but back out if the limiter turns on.
		released := h.pages.scavenge(bytesToScavenge, func() bool {
			return gcCPULimiter.limiting()
		}, forceScavenge)

		mheap_.pages.scav.releasedEager.Add(released)

		// Finish up accounting.
		now = nanotime()
		if track {
			pp.limiterEvent.stop(limiterEventScavengeAssist, now)
		}
		scavenge.assistTime.Add(now - start)
	}