Golang Resources.CPUPercent方法代碼示例

func verifyContainerResources(resources *containertypes.Resources, isHyperv bool) ([]string, error) {
	warnings := []string{}

	if !isHyperv {
		// The processor resource controls are mutually exclusive on
		// Windows Server Containers, the order of precedence is
		// CPUCount first, then CPUShares, and CPUPercent last.
		if resources.CPUCount > 0 {
			if resources.CPUShares > 0 {
				warnings = append(warnings, "Conflicting options: CPU count takes priority over CPU shares on Windows Server Containers. CPU shares discarded")
				logrus.Warn("Conflicting options: CPU count takes priority over CPU shares on Windows Server Containers. CPU shares discarded")
				resources.CPUShares = 0
			}
			if resources.CPUPercent > 0 {
				warnings = append(warnings, "Conflicting options: CPU count takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				logrus.Warn("Conflicting options: CPU count takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				resources.CPUPercent = 0
			}
		} else if resources.CPUShares > 0 {
			if resources.CPUPercent > 0 {
				warnings = append(warnings, "Conflicting options: CPU shares takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				logrus.Warn("Conflicting options: CPU shares takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				resources.CPUPercent = 0
			}
		}
	}

	if resources.NanoCPUs > 0 && resources.CPUPercent > 0 {
		return warnings, fmt.Errorf("Conflicting options: Nano CPUs and CPU Percent cannot both be set")
	}

	if resources.NanoCPUs > 0 && resources.CPUShares > 0 {
		return warnings, fmt.Errorf("Conflicting options: Nano CPUs and CPU Shares cannot both be set")
	}
	if resources.NanoCPUs < 0 || resources.NanoCPUs > int64(sysinfo.NumCPU())*1e9 {
		return warnings, fmt.Errorf("Range of Nano CPUs is from 1 to %d", int64(sysinfo.NumCPU())*1e9)
	}

	// TODO Windows: Add more validation of resource settings not supported on Windows

	if resources.BlkioWeight > 0 {
		warnings = append(warnings, "Windows does not support Block I/O weight. Block I/O weight discarded.")
		logrus.Warn("Windows does not support Block I/O weight. Block I/O weight discarded.")
		resources.BlkioWeight = 0
	}
	if len(resources.BlkioWeightDevice) > 0 {
		warnings = append(warnings, "Windows does not support Block I/O weight-device. Weight-device discarded.")
		logrus.Warn("Windows does not support Block I/O weight-device. Weight-device discarded.")
		resources.BlkioWeightDevice = []*pblkiodev.WeightDevice{}
	}
	if len(resources.BlkioDeviceReadBps) > 0 {
		warnings = append(warnings, "Windows does not support Block read limit in bytes per second. Device read bps discarded.")
		logrus.Warn("Windows does not support Block I/O read limit in bytes per second. Device read bps discarded.")
		resources.BlkioDeviceReadBps = []*pblkiodev.ThrottleDevice{}
	}
	if len(resources.BlkioDeviceWriteBps) > 0 {
		warnings = append(warnings, "Windows does not support Block write limit in bytes per second. Device write bps discarded.")
		logrus.Warn("Windows does not support Block I/O write limit in bytes per second. Device write bps discarded.")
		resources.BlkioDeviceWriteBps = []*pblkiodev.ThrottleDevice{}
	}
	if len(resources.BlkioDeviceReadIOps) > 0 {
		warnings = append(warnings, "Windows does not support Block read limit in IO per second. Device read iops discarded.")
		logrus.Warn("Windows does not support Block I/O read limit in IO per second. Device read iops discarded.")
		resources.BlkioDeviceReadIOps = []*pblkiodev.ThrottleDevice{}
	}
	if len(resources.BlkioDeviceWriteIOps) > 0 {
		warnings = append(warnings, "Windows does not support Block write limit in IO per second. Device write iops discarded.")
		logrus.Warn("Windows does not support Block I/O write limit in IO per second. Device write iops discarded.")
		resources.BlkioDeviceWriteIOps = []*pblkiodev.ThrottleDevice{}
	}
	return warnings, nil
}

//.........這裏部分代碼省略.........
	}
	// The highest precision we could get on Linux is 0.001, by setting
	//   cpu.cfs_period_us=1000ms
	//   cpu.cfs_quota=1ms
	// See the following link for details:
	// https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt
	// Here we don't set the lower limit and it is up to the underlying platform (e.g., Linux) to return an error.
	// The error message is 0.01 so that this is consistent with Windows
	if resources.NanoCPUs < 0 || resources.NanoCPUs > int64(sysinfo.NumCPU())*1e9 {
		return warnings, fmt.Errorf("Range of CPUs is from 0.01 to %d.00, as there are only %d CPUs available", sysinfo.NumCPU(), sysinfo.NumCPU())
	}

	if resources.CPUShares > 0 && !sysInfo.CPUShares {
		warnings = append(warnings, "Your kernel does not support CPU shares or the cgroup is not mounted. Shares discarded.")
		logrus.Warn("Your kernel does not support CPU shares or the cgroup is not mounted. Shares discarded.")
		resources.CPUShares = 0
	}
	if resources.CPUPeriod > 0 && !sysInfo.CPUCfsPeriod {
		warnings = append(warnings, "Your kernel does not support CPU cfs period or the cgroup is not mounted. Period discarded.")
		logrus.Warn("Your kernel does not support CPU cfs period or the cgroup is not mounted. Period discarded.")
		resources.CPUPeriod = 0
	}
	if resources.CPUPeriod != 0 && (resources.CPUPeriod < 1000 || resources.CPUPeriod > 1000000) {
		return warnings, fmt.Errorf("CPU cfs period can not be less than 1ms (i.e. 1000) or larger than 1s (i.e. 1000000)")
	}
	if resources.CPUQuota > 0 && !sysInfo.CPUCfsQuota {
		warnings = append(warnings, "Your kernel does not support CPU cfs quota or the cgroup is not mounted. Quota discarded.")
		logrus.Warn("Your kernel does not support CPU cfs quota or the cgroup is not mounted. Quota discarded.")
		resources.CPUQuota = 0
	}
	if resources.CPUQuota > 0 && resources.CPUQuota < 1000 {
		return warnings, fmt.Errorf("CPU cfs quota can not be less than 1ms (i.e. 1000)")
	}
	if resources.CPUPercent > 0 {
		warnings = append(warnings, fmt.Sprintf("%s does not support CPU percent. Percent discarded.", runtime.GOOS))
		logrus.Warnf("%s does not support CPU percent. Percent discarded.", runtime.GOOS)
		resources.CPUPercent = 0
	}

	// cpuset subsystem checks and adjustments
	if (resources.CpusetCpus != "" || resources.CpusetMems != "") && !sysInfo.Cpuset {
		warnings = append(warnings, "Your kernel does not support cpuset or the cgroup is not mounted. Cpuset discarded.")
		logrus.Warn("Your kernel does not support cpuset or the cgroup is not mounted. Cpuset discarded.")
		resources.CpusetCpus = ""
		resources.CpusetMems = ""
	}
	cpusAvailable, err := sysInfo.IsCpusetCpusAvailable(resources.CpusetCpus)
	if err != nil {
		return warnings, fmt.Errorf("Invalid value %s for cpuset cpus", resources.CpusetCpus)
	}
	if !cpusAvailable {
		return warnings, fmt.Errorf("Requested CPUs are not available - requested %s, available: %s", resources.CpusetCpus, sysInfo.Cpus)
	}
	memsAvailable, err := sysInfo.IsCpusetMemsAvailable(resources.CpusetMems)
	if err != nil {
		return warnings, fmt.Errorf("Invalid value %s for cpuset mems", resources.CpusetMems)
	}
	if !memsAvailable {
		return warnings, fmt.Errorf("Requested memory nodes are not available - requested %s, available: %s", resources.CpusetMems, sysInfo.Mems)
	}

	// blkio subsystem checks and adjustments
	if resources.BlkioWeight > 0 && !sysInfo.BlkioWeight {
		warnings = append(warnings, "Your kernel does not support Block I/O weight or the cgroup is not mounted. Weight discarded.")
		logrus.Warn("Your kernel does not support Block I/O weight or the cgroup is not mounted. Weight discarded.")
		resources.BlkioWeight = 0

func verifyContainerResources(resources *containertypes.Resources, isHyperv bool) ([]string, error) {
	warnings := []string{}

	if !isHyperv {
		// The processor resource controls are mutually exclusive on
		// Windows Server Containers, the order of precedence is
		// CPUCount first, then CPUShares, and CPUPercent last.
		if resources.CPUCount > 0 {
			if resources.CPUShares > 0 {
				warnings = append(warnings, "Conflicting options: CPU count takes priority over CPU shares on Windows Server Containers. CPU shares discarded")
				logrus.Warn("Conflicting options: CPU count takes priority over CPU shares on Windows Server Containers. CPU shares discarded")
				resources.CPUShares = 0
			}
			if resources.CPUPercent > 0 {
				warnings = append(warnings, "Conflicting options: CPU count takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				logrus.Warn("Conflicting options: CPU count takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				resources.CPUPercent = 0
			}
		} else if resources.CPUShares > 0 {
			if resources.CPUPercent > 0 {
				warnings = append(warnings, "Conflicting options: CPU shares takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				logrus.Warn("Conflicting options: CPU shares takes priority over CPU percent on Windows Server Containers. CPU percent discarded")
				resources.CPUPercent = 0
			}
		}
	}

	if resources.CPUShares < 0 || resources.CPUShares > windowsMaxCPUShares {
		return warnings, fmt.Errorf("range of CPUShares is from %d to %d", windowsMinCPUShares, windowsMaxCPUShares)
	}
	if resources.CPUPercent < 0 || resources.CPUPercent > windowsMaxCPUPercent {
		return warnings, fmt.Errorf("range of CPUPercent is from %d to %d", windowsMinCPUPercent, windowsMaxCPUPercent)
	}
	if resources.CPUCount < 0 {
		return warnings, fmt.Errorf("invalid CPUCount: CPUCount cannot be negative")
	}

	if resources.NanoCPUs > 0 && resources.CPUPercent > 0 {
		return warnings, fmt.Errorf("conflicting options: Nano CPUs and CPU Percent cannot both be set")
	}
	if resources.NanoCPUs > 0 && resources.CPUShares > 0 {
		return warnings, fmt.Errorf("conflicting options: Nano CPUs and CPU Shares cannot both be set")
	}
	if resources.NanoCPUs < 0 || resources.NanoCPUs > int64(sysinfo.NumCPU())*1e9 {
		return warnings, fmt.Errorf("range of Nano CPUs is from 1 to %d", int64(sysinfo.NumCPU())*1e9)
	}

	if len(resources.BlkioDeviceReadBps) > 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support BlkioDeviceReadBps")
	}
	if len(resources.BlkioDeviceReadIOps) > 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support BlkioDeviceReadIOps")
	}
	if len(resources.BlkioDeviceWriteBps) > 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support BlkioDeviceWriteBps")
	}
	if len(resources.BlkioDeviceWriteIOps) > 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support BlkioDeviceWriteIOps")
	}
	if resources.BlkioWeight > 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support BlkioWeight")
	}
	if len(resources.BlkioWeightDevice) > 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support BlkioWeightDevice")
	}
	if resources.CgroupParent != "" {
		return warnings, fmt.Errorf("invalid option: Windows does not support CgroupParent")
	}
	if resources.CPUPeriod != 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support CPUPeriod")
	}
	if resources.CpusetCpus != "" {
		return warnings, fmt.Errorf("invalid option: Windows does not support CpusetCpus")
	}
	if resources.CpusetMems != "" {
		return warnings, fmt.Errorf("invalid option: Windows does not support CpusetMems")
	}
	if resources.KernelMemory != 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support KernelMemory")
	}
	if resources.MemoryReservation != 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support MemoryReservation")
	}
	if resources.MemorySwap != 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support MemorySwap")
	}
	if resources.MemorySwappiness != nil && *resources.MemorySwappiness != -1 {
		return warnings, fmt.Errorf("invalid option: Windows does not support MemorySwappiness")
	}
	if resources.OomKillDisable != nil && *resources.OomKillDisable {
		return warnings, fmt.Errorf("invalid option: Windows does not support OomKillDisable")
	}
	if resources.PidsLimit != 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support PidsLimit")
	}
	if len(resources.Ulimits) != 0 {
		return warnings, fmt.Errorf("invalid option: Windows does not support Ulimits")
	}
	return warnings, nil
}