// sweeping here until the next mark phase.
		//
		// Overflow can happen here if gcPaceSweeper is called concurrently with
		// sweeping (i.e. not during a STW, like it usually is) because this code
		// is intentionally racy. A concurrent call to gcPaceSweeper can happen
		// if a GC tuning parameter is modified and we read an older value of
		// heapLive than what was used to set the basis.
		//

	trace := traceAcquire()
	if trace.ok() {
		trace.HeapGoal()
		traceRelease(trace)
	}

	trigger, heapGoal := gcController.trigger()
	gcPaceSweeper(trigger)
	gcPaceScavenger(gcController.memoryLimit.Load(), heapGoal, gcController.lastHeapGoal)