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Code Issues Releases Activity

improve the admin module

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This commit is contained in:
astaxie 2013-11-15 21:45:51 +08:00
parent 969464f8ad
commit 9776bb8a03
5 changed files with 37 additions and 23 deletions
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2
admin.go
View File

@ -46,7 +46,7 @@ func ProfIndex(rw http.ResponseWriter, r *http.Request) {
r.ParseForm()
command := r.Form.Get("command")
if command != "" {
admin.ProcessInput(command)
admin.ProcessInput(command, rw)
} else {
rw.Write([]byte("request url like '/prof?command=lookup goroutine'"))
}

24
admin/profile.go
View File

@ -2,6 +2,7 @@ package admin
import (
"fmt"
"io"
"log"
"os"
"runtime"
@ -11,7 +12,6 @@ import (
"time"
)
var heapProfileCounter int32
var startTime = time.Now()
var pid int
@ -19,20 +19,20 @@ func init() {
pid = os.Getpid()
}
func ProcessInput(input string) {
func ProcessInput(input string, w io.Writer) {
switch input {
case "lookup goroutine":
p := pprof.Lookup("goroutine")
p.WriteTo(os.Stdout, 2)
p.WriteTo(w, 2)
case "lookup heap":
p := pprof.Lookup("heap")
p.WriteTo(os.Stdout, 2)
p.WriteTo(w, 2)
case "lookup threadcreate":
p := pprof.Lookup("threadcreate")
p.WriteTo(os.Stdout, 2)
p.WriteTo(w, 2)
case "lookup block":
p := pprof.Lookup("block")
p.WriteTo(os.Stdout, 2)
p.WriteTo(w, 2)
case "start cpuprof":
StartCPUProfile()
case "stop cpuprof":
@ -40,7 +40,7 @@ func ProcessInput(input string) {
case "get memprof":
MemProf()
case "gc summary":
PrintGCSummary()
PrintGCSummary(w)
}
}
@ -66,16 +66,16 @@ func StopCPUProfile() {
pprof.StopCPUProfile()
}
func PrintGCSummary() {
func PrintGCSummary(w io.Writer) {
memStats := &runtime.MemStats{}
runtime.ReadMemStats(memStats)
gcstats := &debug.GCStats{PauseQuantiles: make([]time.Duration, 100)}
debug.ReadGCStats(gcstats)
printGC(memStats, gcstats)
printGC(memStats, gcstats, w)
}
func printGC(memStats *runtime.MemStats, gcstats *debug.GCStats) {
func printGC(memStats *runtime.MemStats, gcstats *debug.GCStats, w io.Writer) {
if gcstats.NumGC > 0 {
lastPause := gcstats.Pause[0]
@ -83,7 +83,7 @@ func printGC(memStats *runtime.MemStats, gcstats *debug.GCStats) {
overhead := float64(gcstats.PauseTotal) / float64(elapsed) * 100
allocatedRate := float64(memStats.TotalAlloc) / elapsed.Seconds()
fmt.Printf("NumGC:%d Pause:%s Pause(Avg):%s Overhead:%3.2f%% Alloc:%s Sys:%s Alloc(Rate):%s/s Histogram:%s %s %s \n",
fmt.Fprintf(w, "NumGC:%d Pause:%s Pause(Avg):%s Overhead:%3.2f%% Alloc:%s Sys:%s Alloc(Rate):%s/s Histogram:%s %s %s \n",
gcstats.NumGC,
toS(lastPause),
toS(avg(gcstats.Pause)),
@ -99,7 +99,7 @@ func printGC(memStats *runtime.MemStats, gcstats *debug.GCStats) {
elapsed := time.Now().Sub(startTime)
allocatedRate := float64(memStats.TotalAlloc) / elapsed.Seconds()
fmt.Printf("Alloc:%s Sys:%s Alloc(Rate):%s/s\n",
fmt.Fprintf(w, "Alloc:%s Sys:%s Alloc(Rate):%s/s\n",
toH(memStats.Alloc),
toH(memStats.Sys),
toH(uint64(allocatedRate)))

14
admin/profile_test.go Normal file
View File

@ -0,0 +1,14 @@
package admin
import (
"os"
"testing"
)
func TestProcessInput(t *testing.T) {
ProcessInput("lookup goroutine", os.Stdout)
ProcessInput("lookup heap", os.Stdout)
ProcessInput("lookup threadcreate", os.Stdout)
ProcessInput("lookup block", os.Stdout)
ProcessInput("gc summary", os.Stdout)
}

6
admin/statistics.go
View File

@ -64,11 +64,11 @@ func (m *UrlMap) AddStatistics(requestMethod, requestUrl, requestController stri
func (m *UrlMap) GetMap(rw io.Writer) {
m.lock.RLock()
defer m.lock.RUnlock()
fmt.Fprintf(rw, "| % -30s| % -10s | % -16s | % -16s | % -16s | % -16s | % -16s |\n", "requestUrl", "method", "times", "used (s)", "avg used (μs)", "max used (μs)", "min used (μs)")
fmt.Fprintf(rw, "| % -50s| % -10s | % -16s | % -16s | % -16s | % -16s | % -16s |\n", "requestUrl", "method", "times", "used", "max used", "min used", "avg used")
for k, v := range m.urlmap {
for kk, vv := range v {
fmt.Fprintf(rw, "| % -30s| % -10s | % -16d | % -16f | % -16f | % -16f | % -16f |\n", k,
kk, vv.RequestNum, vv.TotalTime, vv.MaxTime, vv.MinTime, int64(vv.TotalTime)/vv.RequestNum,
fmt.Fprintf(rw, "| % -50s| % -10s | % -16d | % -16s | % -16s | % -16s | % -16s |\n", k,
kk, vv.RequestNum, toS(vv.TotalTime), toS(vv.MaxTime), toS(vv.MinTime), toS(time.Duration(int64(vv.TotalTime)/vv.RequestNum)),
)
}
}

14
admin/statistics_test.go
View File

@ -7,12 +7,12 @@ import (
)
func TestStatics(t *testing.T) {
StatisticsMap.AddStatistics("POST", "/api/user", "&admin.user", time.Duration(1000000))
StatisticsMap.AddStatistics("POST", "/api/user", "&admin.user", time.Duration(1200000))
StatisticsMap.AddStatistics("GET", "/api/user", "&admin.user", time.Duration(1300000))
StatisticsMap.AddStatistics("POST", "/api/admin", "&admin.user", time.Duration(1400000))
StatisticsMap.AddStatistics("POST", "/api/user/astaxie", "&admin.user", time.Duration(1200000))
StatisticsMap.AddStatistics("POST", "/api/user/xiemengjun", "&admin.user", time.Duration(1300000))
StatisticsMap.AddStatistics("DELETE", "/api/user", "&admin.user", time.Duration(1400000))
StatisticsMap.AddStatistics("POST", "/api/user", "&admin.user", time.Duration(2000))
StatisticsMap.AddStatistics("POST", "/api/user", "&admin.user", time.Duration(120000))
StatisticsMap.AddStatistics("GET", "/api/user", "&admin.user", time.Duration(13000))
StatisticsMap.AddStatistics("POST", "/api/admin", "&admin.user", time.Duration(14000))
StatisticsMap.AddStatistics("POST", "/api/user/astaxie", "&admin.user", time.Duration(12000))
StatisticsMap.AddStatistics("POST", "/api/user/xiemengjun", "&admin.user", time.Duration(13000))
StatisticsMap.AddStatistics("DELETE", "/api/user", "&admin.user", time.Duration(1400))
StatisticsMap.GetMap(os.Stdout)
}