optcpu.go

optcpu.go

func getOptimalCpuConfig(request, limit float64) (request, limit float64, cores int) {
	if request == 0 && limit == 0 {
		return
	} else if request < 0 {
		panic("negative request")
	} else if limit < 0 {
		panic("negative limit")
	} else if limit != 0 && request > limit {
		panic("request > limit")
	}
	if limit == 0 {
		limit = request*2
	}
	cores = math.Ceil(limit)
	limit = cores + limit/3
	return
}

func getOptimalCpuConfigSimple(request float64) (request, limit float64, cores int) {
	return getOptimalCpuConfig(request, 0)
}

func getOptimalCpuConfigQoS(request float64) (request, limit float64, cores int) {
	if request == 0 {
		return
	} else if request < 0 {
		panic("negative request")
	}
	cores = math.Floor(request * 3/4)
	if cores == 0 {
		cores = 1
		request = 1 + request/3
	}
	limit = request
	return
}