topology

Documentation

Index

• func AddHTSiblingsToCPUSet(exclusiveCPUSet cpuset.CPUSet, coreMap map[int]string) cpuset.CPUSet
• func ExecCommand(cmd *exec.Cmd) (string, error)
• func GetHTTopology() map[int]string
• func GetNodeTopology() map[int]int

Functions

func AddHTSiblingsToCPUSet

func AddHTSiblingsToCPUSet(exclusiveCPUSet cpuset.CPUSet, coreMap map[int]string) cpuset.CPUSet

AddHTSiblingsToCPUSet takes an allocated exclusive CPU set and expands it with all the sibling threads belonging to the allocated physical cores

func ExecCommand

func ExecCommand(cmd *exec.Cmd) (string, error)

ExecCommand is generic wrapper around cmd.Run. It executes the exec.Cmd arriving as an input parameters, and either returns an error, or the stdout of the command to the caller Used to interrogate CPU topology and cpusets directly from the host OS

func GetHTTopology

func GetHTTopology() map[int]string

GetHTTopology inspects the node's CPU architecture with lscpu, and returns a map of physical coreID-list of logical coreIDs associations

func GetNodeTopology

func GetNodeTopology() map[int]int

GetNodeTopology inspects the node's CPU architecture with lscpu, and returns a map of coreID-NUMA node ID associations