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package sysfs

import ""


Package Files



const (

    //HugePagesNrFile name of nr_hugepages file in sysfs
    HugePagesNrFile = "nr_hugepages"

type CacheInfo Uses

type CacheInfo struct {
    // size in bytes
    Size uint64
    // cache type - instruction, data, unified
    Type string
    // distance from cpus in a multi-level hierarchy
    Level int
    // number of cpus that can access this cache.
    Cpus int

type SysFs Uses

type SysFs interface {
    // Get NUMA nodes paths
    GetNodesPaths() ([]string, error)
    // Get paths to CPUs in provided directory e.g. /sys/devices/system/node/node0 or /sys/devices/system/cpu
    GetCPUsPaths(cpusPath string) ([]string, error)
    // Get physical core id for specified CPU
    GetCoreID(coreIDFilePath string) (string, error)
    // Get physical package id for specified CPU
    GetCPUPhysicalPackageID(cpuPath string) (string, error)
    // Get total memory for specified NUMA node
    GetMemInfo(nodeDir string) (string, error)
    // Get hugepages from specified directory
    GetHugePagesInfo(hugePagesDirectory string) ([]os.FileInfo, error)
    // Get hugepage_nr from specified directory
    GetHugePagesNr(hugePagesDirectory string, hugePageName string) (string, error)
    // Get directory information for available block devices.
    GetBlockDevices() ([]os.FileInfo, error)
    // Get Size of a given block device.
    GetBlockDeviceSize(string) (string, error)
    // Get scheduler type for the block device.
    GetBlockDeviceScheduler(string) (string, error)
    // Get device major:minor number string.
    GetBlockDeviceNumbers(string) (string, error)

    GetNetworkDevices() ([]os.FileInfo, error)
    GetNetworkAddress(string) (string, error)
    GetNetworkMtu(string) (string, error)
    GetNetworkSpeed(string) (string, error)
    GetNetworkStatValue(dev string, stat string) (uint64, error)

    // Get directory information for available caches accessible to given cpu.
    GetCaches(id int) ([]os.FileInfo, error)
    // Get information for a cache accessible from the given cpu.
    GetCacheInfo(cpu int, cache string) (CacheInfo, error)

    GetSystemUUID() (string, error)
    // IsCPUOnline determines if CPU status from kernel hotplug machanism standpoint.
    // See:
    IsCPUOnline(dir string) bool

Abstracts the lowest level calls to sysfs.

func NewRealSysFs Uses

func NewRealSysFs() SysFs



Package sysfs imports 11 packages (graph) and is imported by 773 packages. Updated 2020-06-29. Refresh now. Tools for package owners.