memcache stats

cacheRatio.go

package main

import (
        "fmt"
        "io/ioutil"
        "log"
        "net"
        "regexp"
        "strconv"
)

func main() {
        var cacheRatio int
        fmt.Println("Getting Memcache stats....")

        conn, err := net.Dial("tcp", "localhost:11211")
        if err != nil {
                log.Fatal("error net Dial")
        }

        fmt.Fprintf(conn, "stats\r\nquit\r\n")
        data, err := ioutil.ReadAll(conn)
        reghits, err := regexp.Compile(`cas_hits ([0-9]+)`)
        regmisses, err := regexp.Compile(`cas_misses ([0-9]+)`)
        hitsData := reghits.Find(data)
        missesData := regmisses.Find(data)
        if hitsData != nil && missesData != nil {
                // cas_hits value
                casHits, _ := strconv.Atoi(string(reghits.FindSubmatch(hitsData)[1]))
                // cas_misses value
                casMisses, _ := strconv.Atoi(string(regmisses.FindSubmatch(missesData)[1]))

                totalHits := (casHits + casMisses)

                if totalHits != 0 {
                        cacheRatio = casHits / totalHits
                }

                fmt.Printf("cache hits: %d\n", casHits)
                fmt.Printf("cache misses: %d\n", casMisses)
                fmt.Printf("cache ratio: %d\n", cacheRatio)
        }
}