package config import ( "fmt" "runtime" "github.com/dustin/go-humanize" ) // RuntimeInfo represents memory and cpu usage statistics. type RuntimeInfo struct { Cores int `json:"cores"` Routines int `json:"routines"` Memory struct { Used uint64 `json:"used"` Reserved uint64 `json:"reserved"` Info string `json:"info"` } `json:"memory"` } // NewRuntimeInfo returns a new RuntimeInfo instance. func NewRuntimeInfo() (r RuntimeInfo) { r = RuntimeInfo{} r.Refresh() return r } // Refresh updates runtime info values like number of goroutines and memory usage. func (r *RuntimeInfo) Refresh() { r.Cores = runtime.NumCPU() r.Routines = runtime.NumGoroutine() var mem runtime.MemStats runtime.ReadMemStats(&mem) r.Memory.Used = mem.Alloc r.Memory.Reserved = mem.Sys r.Memory.Info = fmt.Sprintf("Used %s / Reserved %s", humanize.Bytes(r.Memory.Used), humanize.Bytes(r.Memory.Reserved)) }