cgroups

package module

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Versions in this module

v0

v0.0.4

Jul 14, 2025

v0.0.3

Jun 18, 2025

v0.0.2

Apr 24, 2025

Changes in this version

+ type BurstData struct

+ BurstTime uint64

+ BurstsPeriods uint64

type CpuStats

+ BurstData BurstData

v0.0.1

Feb 28, 2025

Changes in this version

+ const CgroupNamePrefix

+ const CgroupProcesses

+ var DevicesSetV1 func(path string, r *Resources) error

+ var DevicesSetV2 func(path string, r *Resources) error

+ var ErrDevicesUnsupported = errors.New("cgroup manager is not configured to set device rules")

+ var ErrRootless = errors.New("cgroup manager can not access cgroup (rootless container)")

+ var ErrV1NoUnified = errors.New("invalid configuration: cannot use unified on cgroup v1")

+ var TestMode bool

+ func ConvertBlkIOToIOWeightValue(blkIoWeight uint16) uint64

+ func ConvertCPUSharesToCgroupV2Value(cpuShares uint64) uint64

+ func ConvertMemorySwapToCgroupV2Value(memorySwap, memory int64) (int64, error)

+ func FindCgroupMountpoint(cgroupPath, subsystem string) (string, error)

+ func FindCgroupMountpointAndRoot(cgroupPath, subsystem string) (string, string, error)

+ func GetAllPids(path string) ([]int, error)

+ func GetAllSubsystems() ([]string, error)

+ func GetOwnCgroup(subsystem string) (string, error)

+ func GetOwnCgroupPath(subsystem string) (string, error)

+ func GetPids(dir string) ([]int, error)

+ func HugePageSizes() []string

+ func IsCgroup2HybridMode() bool

+ func IsCgroup2UnifiedMode() bool

+ func IsNotFound(err error) bool

+ func NewNotFoundError(sub string) error

+ func OpenFile(dir, file string, flags int) (*os.File, error)

+ func ParseCgroupFile(path string) (map[string]string, error)

+ func PathExists(path string) bool

+ func ReadFile(dir, file string) (string, error)

+ func RemovePath(path string) error

+ func RemovePaths(paths map[string]string) (err error)

+ func WriteCgroupProc(dir string, pid int) error

+ func WriteFile(dir, file, data string) error

+ func WriteFileByLine(dir, file, data string) error

+ type BlkioStatEntry struct

+ Major uint64

+ Minor uint64

+ Op string

+ Value uint64

+ type BlkioStats struct

+ IoMergedRecursive []BlkioStatEntry

+ IoQueuedRecursive []BlkioStatEntry

+ IoServiceBytesRecursive []BlkioStatEntry

+ IoServiceTimeRecursive []BlkioStatEntry

+ IoServicedRecursive []BlkioStatEntry

+ IoTimeRecursive []BlkioStatEntry

+ IoWaitTimeRecursive []BlkioStatEntry

+ PSI *PSIStats

+ SectorsRecursive []BlkioStatEntry

+ type BlockIODevice struct

+ Major int64

+ Minor int64

+ type CPUSetStats struct

+ CPUExclusive uint64

+ CPUs []uint16

+ MemExclusive uint64

+ MemHardwall uint64

+ MemoryMigrate uint64

+ MemoryPressure uint64

+ MemorySpreadPage uint64

+ MemorySpreadSlab uint64

+ Mems []uint16

+ SchedLoadBalance uint64

+ SchedRelaxDomainLevel int64

+ type Cgroup struct — darwin/amd64, js/wasm, windows/amd64

+ type Cgroup struct — linux/amd64

+ Name string

+ OwnerUID *int

+ Parent string

+ Path string

+ Rootless bool

+ ScopePrefix string

+ Systemd bool

+ SystemdProps []systemdDbus.Property

+ type CpuStats struct

+ CpuUsage CpuUsage

+ PSI *PSIStats

+ ThrottlingData ThrottlingData

+ type CpuUsage struct

+ PercpuUsage []uint64

+ PercpuUsageInKernelmode []uint64

+ PercpuUsageInUsermode []uint64

+ TotalUsage uint64

+ UsageInKernelmode uint64

+ UsageInUsermode uint64

+ type FreezerState string — linux/amd64

+ const Frozen

+ const Thawed

+ const Undefined

+ type HugepageLimit struct

+ Limit uint64

+ Pagesize string

+ type HugetlbStats struct

+ Failcnt uint64

+ MaxUsage uint64

+ Usage uint64

+ type IfPrioMap struct

+ Interface string

+ Priority int64

+ func (i *IfPrioMap) CgroupString() string

+ type LinuxRdma struct

+ HcaHandles *uint32

+ HcaObjects *uint32

+ type Manager interface

+ Apply func(pid int) error

+ Destroy func() error

+ Exists func() bool

+ Freeze func(state FreezerState) error

+ GetAllPids func() ([]int, error)

+ GetCgroups func() (*Cgroup, error)

+ GetFreezerState func() (FreezerState, error)

+ GetPaths func() map[string]string

+ GetPids func() ([]int, error)

+ GetStats func() (*Stats, error)

+ OOMKillCount func() (uint64, error)

+ Path func(string) string

+ Set func(r *Resources) error

+ type MemoryData struct

+ Failcnt uint64

+ Limit uint64

+ MaxUsage uint64

+ Usage uint64

+ type MemoryStats struct

+ Cache uint64

+ KernelTCPUsage MemoryData

+ KernelUsage MemoryData

+ PSI *PSIStats

+ PageUsageByNUMA PageUsageByNUMA

+ Stats map[string]uint64

+ SwapOnlyUsage MemoryData

+ SwapUsage MemoryData

+ Usage MemoryData

+ UseHierarchy bool

+ type MiscStats struct

+ Events uint64

+ Usage uint64

+ type Mount struct

+ Mountpoint string

+ Root string

+ Subsystems []string

+ func GetCgroupMounts(all bool) ([]Mount, error)

+ func (m Mount) GetOwnCgroup(cgroups map[string]string) (string, error)

+ type NotFoundError struct

+ Subsystem string

+ func (e *NotFoundError) Error() string

+ type PSIData struct

+ Avg10 float64

+ Avg300 float64

+ Avg60 float64

+ Total uint64

+ type PSIStats struct

+ Full PSIData

+ Some PSIData

+ type PageStats struct

+ Nodes map[uint8]uint64

+ Total uint64

+ type PageUsageByNUMA struct

+ Hierarchical PageUsageByNUMAInner

+ type PageUsageByNUMAInner struct

+ Anon PageStats

+ File PageStats

+ Total PageStats

+ Unevictable PageStats

+ type PidsStats struct

+ Current uint64

+ Limit uint64

+ type RdmaEntry struct

+ Device string

+ HcaHandles uint32

+ HcaObjects uint32

+ type RdmaStats struct

+ RdmaCurrent []RdmaEntry

+ RdmaLimit []RdmaEntry

+ type Resources struct — linux/amd64

+ BlkioLeafWeight uint16

+ BlkioThrottleReadBpsDevice []*ThrottleDevice

+ BlkioThrottleReadIOPSDevice []*ThrottleDevice

+ BlkioThrottleWriteBpsDevice []*ThrottleDevice

+ BlkioThrottleWriteIOPSDevice []*ThrottleDevice

+ BlkioWeight uint16

+ BlkioWeightDevice []*WeightDevice

+ CPUIdle *int64

+ CpuBurst *uint64

+ CpuPeriod uint64

+ CpuQuota int64

+ CpuRtPeriod uint64

+ CpuRtRuntime int64

+ CpuShares uint64

+ CpuWeight uint64

+ CpusetCpus string

+ CpusetMems string

+ Devices []*devices.Rule

+ Freezer FreezerState

+ HugetlbLimit []*HugepageLimit

+ Memory int64

+ MemoryCheckBeforeUpdate bool

+ MemoryReservation int64

+ MemorySwap int64

+ MemorySwappiness *uint64

+ NetClsClassid uint32

+ NetPrioIfpriomap []*IfPrioMap

+ OomKillDisable bool

+ PidsLimit int64

+ Rdma map[string]LinuxRdma

+ SkipDevices bool

+ SkipFreezeOnSet bool

+ Unified map[string]string

+ type Stats struct

+ BlkioStats BlkioStats

+ CPUSetStats CPUSetStats

+ CpuStats CpuStats

+ HugetlbStats map[string]HugetlbStats

+ MemoryStats MemoryStats

+ MiscStats map[string]MiscStats

+ PidsStats PidsStats

+ RdmaStats RdmaStats

+ func NewStats() *Stats

+ type ThrottleDevice struct

+ Rate uint64

+ func NewThrottleDevice(major, minor int64, rate uint64) *ThrottleDevice

+ func (td *ThrottleDevice) String() string

+ func (td *ThrottleDevice) StringName(name string) string

+ type ThrottlingData struct

+ Periods uint64

+ ThrottledPeriods uint64

+ ThrottledTime uint64

+ type WeightDevice struct

+ LeafWeight uint16

+ Weight uint16

+ func NewWeightDevice(major, minor int64, weight, leafWeight uint16) *WeightDevice

+ func (wd *WeightDevice) LeafWeightString() string

+ func (wd *WeightDevice) WeightString() string

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