package utils

import "github.com/intel/goresctrl/pkg/utils"

Index ¶

• Constants
• func DumpJSON(r interface{}) string
• func GetCPUFreqValue(cpu ID, setting string) (int, error)
• func ReadMSR(cpu ID, msr int64) (uint64, error)
• func SetCPUScalingGovernor(cpu ID, governor string) error
• func SetCPUScalingMaxFreq(cpu ID, freq int) error
• func SetCPUScalingMinFreq(cpu ID, freq int) error
• func SetCPUsScalingMaxFreq(cpus []ID, freq int) error
• func SetCPUsScalingMinFreq(cpus []ID, freq int) error
• func SetScalingGovernorForCPUs(cpus []ID, governor string) error
• func SetUncoreMaxFreq(pkg, die ID, freqKhz int) error
• func SetUncoreMinFreq(pkg, die ID, freqKhz int) error
• func SortUint64s(a []uint64)
• func UncoreFreqAvailable() bool
• type ID
• type IDSet
• func NewIDSet(ids ...ID) IDSet
• func NewIDSetFromIntSlice(ids ...int) IDSet
• func (s IDSet) Add(ids ...ID)
• func (s IDSet) Clone() IDSet
• func (s IDSet) Del(ids ...ID)
• func (s IDSet) Has(ids ...ID) bool
• func (s IDSet) MarshalJSON() ([]byte, error)
• func (s IDSet) Members() []ID
• func (s IDSet) Size() int
• func (s IDSet) SortedMembers() []ID
• func (s IDSet) String() string
• func (s IDSet) StringWithSeparator(args ...string) string
• func (s *IDSet) UnmarshalJSON(data []byte) error
• type Uint64Slice
• func (s Uint64Slice) Len() int
• func (s Uint64Slice) Less(i, j int) bool
• func (s Uint64Slice) Swap(i, j int)

Constants ¶

const (
	SysfsUncoreBasepath = "sys/devices/system/cpu/intel_uncore_frequency"
	SysfsCpuBasepath    = "sys/devices/system/cpu"
)

Functions ¶

func DumpJSON ¶

func DumpJSON(r interface{}) string

DumpJSON dumps a json-compatible struct in human-readable form

func GetCPUFreqValue ¶

func GetCPUFreqValue(cpu ID, setting string) (int, error)

GetCPUFreqValue returns information of the currently used CPU frequency

func ReadMSR ¶

func ReadMSR(cpu ID, msr int64) (uint64, error)

func SetCPUScalingGovernor ¶

func SetCPUScalingGovernor(cpu ID, governor string) error

func SetCPUScalingMaxFreq ¶

func SetCPUScalingMaxFreq(cpu ID, freq int) error

SetCPUScalingMaxFreq sets the scaling_max_freq value of a given CPU

func SetCPUScalingMinFreq ¶

func SetCPUScalingMinFreq(cpu ID, freq int) error

SetCPUScalingMinFreq sets the scaling_min_freq value of a given CPU

func SetCPUsScalingMaxFreq ¶

func SetCPUsScalingMaxFreq(cpus []ID, freq int) error

SetCPUsScalingMaxFreq sets the scaling_max_freq value of a given set of CPUs

func SetCPUsScalingMinFreq ¶

func SetCPUsScalingMinFreq(cpus []ID, freq int) error

SetCPUsScalingMinFreq sets the scaling_min_freq value of a given set of CPUs

func SetScalingGovernorForCPUs ¶

func SetScalingGovernorForCPUs(cpus []ID, governor string) error

SetScalingGovernorForCPUs sets the scaling_governor of a given set of CPUs

func SetUncoreMaxFreq ¶

func SetUncoreMaxFreq(pkg, die ID, freqKhz int) error

SetUncoreMaxFreq sets the maximum uncore frequency of a CPU die. Frequency is specified in kHz.

func SetUncoreMinFreq ¶

func SetUncoreMinFreq(pkg, die ID, freqKhz int) error

SetUncoreMinFreq sets the minimum uncore frequency of a CPU die. Frequency is specified in kHz.

func SortUint64s ¶

func SortUint64s(a []uint64)

SortUint64s sorts a slice of uint64 in increasing order.

func UncoreFreqAvailable ¶

func UncoreFreqAvailable() bool

UncoreFreqAvailable returns true if the uncore frequency control functions are available.

Types ¶

type ID ¶

type ID = int

ID is nn integer id, used to identify packages, CPUs, nodes, etc.

const (
	// Unknown represents an unknown id.
	Unknown ID = -1
)

type IDSet ¶

type IDSet map[ID]struct{}

IDSet is an unordered set of integer ids.

func NewIDSet ¶

func NewIDSet(ids ...ID) IDSet

NewIDSet creates a new unordered set of (integer) ids.

func NewIDSetFromIntSlice ¶

func NewIDSetFromIntSlice(ids ...int) IDSet

NewIDSetFromIntSlice creates a new unordered set from an integer slice.

func (IDSet) Add ¶

func (s IDSet) Add(ids ...ID)

Add adds the given ids into the set.

func (IDSet) Clone ¶

func (s IDSet) Clone() IDSet

Clone returns a copy of this IdSet.

func (IDSet) Del ¶

func (s IDSet) Del(ids ...ID)

Del deletes the given ids from the set.

func (IDSet) Has ¶

func (s IDSet) Has(ids ...ID) bool

Has tests if all the ids are present in the set.

func (IDSet) MarshalJSON ¶

func (s IDSet) MarshalJSON() ([]byte, error)

MarshalJSON is the JSON marshaller for IDSet.

func (IDSet) Members ¶

func (s IDSet) Members() []ID

Members returns all ids in the set as a randomly ordered slice.

func (IDSet) Size ¶

func (s IDSet) Size() int

Size returns the number of ids in the set.

func (IDSet) SortedMembers ¶

func (s IDSet) SortedMembers() []ID

SortedMembers returns all ids in the set as a sorted slice.

func (IDSet) String ¶

func (s IDSet) String() string

String returns the set as a string.

func (IDSet) StringWithSeparator ¶

func (s IDSet) StringWithSeparator(args ...string) string

StringWithSeparator returns the set as a string, separated with the given separator.

func (*IDSet) UnmarshalJSON ¶

func (s *IDSet) UnmarshalJSON(data []byte) error

UnmarshalJSON is the JSON unmarshaller for IDSet.

type Uint64Slice ¶

type Uint64Slice []uint64

Uint64Slice implmenents sort.Interface for a slice of uint64.

func (Uint64Slice) Len ¶

func (s Uint64Slice) Len() int

Len returns the length of an UintSlice

func (Uint64Slice) Less ¶

func (s Uint64Slice) Less(i, j int) bool

Less returns true if element at 'i' is less than the element at 'j'

func (Uint64Slice) Swap ¶

func (s Uint64Slice) Swap(i, j int)

Swap swaps the values of two elements

Source Files ¶

idset.go json.go msr.go sort.go sysfs.go