var r int64
	if rate <= 0 {
		r = 0 // disable profiling
	} else if rate == 1 {
		r = 1 // profile everything
	} else {
		// convert ns to cycles, use float64 to prevent overflow during multiplication
		r = int64(float64(rate) * float64(ticksPerSecond()) / (1000 * 1000 * 1000))
		if r == 0 {
			r = 1
		}
	}

	atomic.Store64(&blockprofilerate, uint64(r))
}

	//
	// The constants are obscured in this way for efficiency. The denominator
	// of the fraction is always a power-of-two for a quick division, so that
	// the numerator is a single constant integer multiplication.
	triggerRatioDen = 64

	// The minimum trigger constant was chosen empirically: given a sufficiently
	// fast/scalable allocator with 48 Ps that could drive the trigger ratio

func (p *PriorityQueue) calculateBackoffDuration(podInfo *framework.QueuedPodInfo) time.Duration {
	duration := p.podInitialBackoffDuration
	for i := 1; i < podInfo.Attempts; i++ {
		// Use subtraction instead of addition or multiplication to avoid overflow.
		if duration > p.podMaxBackoffDuration-duration {
			return p.podMaxBackoffDuration
		}
		duration += duration
	}
	return duration
}

	dwarf.Uleb128put(d, fsd, 1)                         // code_alignment_factor
	dwarf.Sleb128put(d, fsd, dataAlignmentFactor)       // all CFI offset calculations include multiplication with this factor
	dwarf.Uleb128put(d, fsd, int64(thearch.Dwarfreglr)) // return_address_register

	fsu.AddUint8(dwarf.DW_CFA_def_cfa)                  // Set the current frame address..

	ASUBW & obj.AMask:  rIIIEncoding,
	ASRAW & obj.AMask:  rIIIEncoding,

	// 5.3: Load and Store Instructions (RV64I)
	ALD & obj.AMask: iIEncoding,
	ASD & obj.AMask: sIEncoding,

	// 7.1: Multiplication Operations
	AMUL & obj.AMask:    rIIIEncoding,
	AMULH & obj.AMask:   rIIIEncoding,
	AMULHU & obj.AMask:  rIIIEncoding,
	AMULHSU & obj.AMask: rIIIEncoding,
	AMULW & obj.AMask:   rIIIEncoding,