web服务中加入如下

 

import (    "runtime"    "time"    "fmt")    go func() {        for {            var m runtime.MemStats            tick := time.After(5 * time.Second)            select {            case <-tick:                runtime.ReadMemStats(&m)                gb := 1024 * 1024 * 1024.0                logstr := fmt.Sprintf("\nAlloc = %v\tTotalAlloc = %v\tSys = %v\t NumGC = %v\n\n", float64(m.Alloc)/gb, float64(m.TotalAlloc)/gb, float64(m.Sys)/gb, m.NumGC)                logger.Runtime.Info(logstr)            }        }    }()