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khenaidooab1f7bd2019-11-14 14:00:27 -05001// Copyright 2017 The etcd Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package debugutil
16
17import (
18 "net/http"
19 "net/http/pprof"
20 "runtime"
21)
22
23const HTTPPrefixPProf = "/debug/pprof"
24
25// PProfHandlers returns a map of pprof handlers keyed by the HTTP path.
26func PProfHandlers() map[string]http.Handler {
27 // set only when there's no existing setting
28 if runtime.SetMutexProfileFraction(-1) == 0 {
29 // 1 out of 5 mutex events are reported, on average
30 runtime.SetMutexProfileFraction(5)
31 }
32
33 m := make(map[string]http.Handler)
34
35 m[HTTPPrefixPProf+"/"] = http.HandlerFunc(pprof.Index)
36 m[HTTPPrefixPProf+"/profile"] = http.HandlerFunc(pprof.Profile)
37 m[HTTPPrefixPProf+"/symbol"] = http.HandlerFunc(pprof.Symbol)
38 m[HTTPPrefixPProf+"/cmdline"] = http.HandlerFunc(pprof.Cmdline)
39 m[HTTPPrefixPProf+"/trace "] = http.HandlerFunc(pprof.Trace)
40 m[HTTPPrefixPProf+"/heap"] = pprof.Handler("heap")
41 m[HTTPPrefixPProf+"/goroutine"] = pprof.Handler("goroutine")
42 m[HTTPPrefixPProf+"/threadcreate"] = pprof.Handler("threadcreate")
43 m[HTTPPrefixPProf+"/block"] = pprof.Handler("block")
44 m[HTTPPrefixPProf+"/mutex"] = pprof.Handler("mutex")
45
46 return m
47}