92 lines
2.0 KiB
Go
92 lines
2.0 KiB
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"flag"
|
||
|
|
"fmt"
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
"runtime"
|
||
|
|
"runtime/pprof"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/BurntSushi/xgb"
|
||
|
|
"github.com/BurntSushi/xgb/xproto"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
flagRequests int
|
||
|
|
flagGOMAXPROCS int
|
||
|
|
flagCpuProfName string
|
||
|
|
flagMemProfName string
|
||
|
|
)
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
flag.IntVar(&flagRequests, "requests", 100000, "Number of atoms to intern.")
|
||
|
|
flag.IntVar(&flagGOMAXPROCS, "cpu", 1, "Value of GOMAXPROCS.")
|
||
|
|
flag.StringVar(&flagCpuProfName, "cpuprof", "cpu.prof",
|
||
|
|
"Name of CPU profile file.")
|
||
|
|
flag.StringVar(&flagMemProfName, "memprof", "mem.prof",
|
||
|
|
"Name of memory profile file.")
|
||
|
|
|
||
|
|
flag.Parse()
|
||
|
|
|
||
|
|
runtime.GOMAXPROCS(flagGOMAXPROCS)
|
||
|
|
}
|
||
|
|
|
||
|
|
func seqNames(n int) []string {
|
||
|
|
names := make([]string, n)
|
||
|
|
for i := range names {
|
||
|
|
names[i] = fmt.Sprintf("NAME%d", i)
|
||
|
|
}
|
||
|
|
return names
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
X, err := xgb.NewConn()
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
names := seqNames(flagRequests)
|
||
|
|
|
||
|
|
fcpu, err := os.Create(flagCpuProfName)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
defer fcpu.Close()
|
||
|
|
pprof.StartCPUProfile(fcpu)
|
||
|
|
defer pprof.StopCPUProfile()
|
||
|
|
|
||
|
|
start := time.Now()
|
||
|
|
cookies := make([]xproto.InternAtomCookie, flagRequests)
|
||
|
|
for i := 0; i < flagRequests; i++ {
|
||
|
|
cookies[i] = xproto.InternAtom(X,
|
||
|
|
false, uint16(len(names[i])), names[i])
|
||
|
|
}
|
||
|
|
for _, cookie := range cookies {
|
||
|
|
cookie.Reply()
|
||
|
|
}
|
||
|
|
fmt.Printf("Exec time: %s\n\n", time.Since(start))
|
||
|
|
|
||
|
|
fmem, err := os.Create(flagMemProfName)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
defer fmem.Close()
|
||
|
|
pprof.WriteHeapProfile(fmem)
|
||
|
|
|
||
|
|
memStats := &runtime.MemStats{}
|
||
|
|
runtime.ReadMemStats(memStats)
|
||
|
|
|
||
|
|
// This isn't right. I'm not sure what's wrong.
|
||
|
|
lastGcTime := time.Unix(int64(memStats.LastGC/1000000000),
|
||
|
|
int64(memStats.LastGC-memStats.LastGC/1000000000))
|
||
|
|
|
||
|
|
fmt.Printf("Alloc: %d\n", memStats.Alloc)
|
||
|
|
fmt.Printf("TotalAlloc: %d\n", memStats.TotalAlloc)
|
||
|
|
fmt.Printf("LastGC: %s\n", lastGcTime)
|
||
|
|
fmt.Printf("PauseTotalNs: %d\n", memStats.PauseTotalNs)
|
||
|
|
fmt.Printf("PauseNs: %d\n", memStats.PauseNs)
|
||
|
|
fmt.Printf("NumGC: %d\n", memStats.NumGC)
|
||
|
|
}
|