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Note about goroutines

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Felix Geisendörfer
2021-01-17 19:21:02 +01:00
parent cd61f90513
commit 6fde1a9f35
19 changed files with 1912 additions and 0 deletions
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examples/goroutine/1.net.http.pprof.goroutine.debug0.pb.gz Normal file
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goroutine profile: total 10
2 @ 0x103b125 0x106cd1f 0x13ac44a 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac449 main.shortSleepLoop+0x29 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165
1 @ 0x103b125 0x10083ef 0x100802b 0x13ac4ed 0x106fd81
# labels: {"test_label":"test_value"}
# 0x13ac4ec main.chanReceiveForever+0x4c /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10d91c5 0x10d91a3 0x11b8a8f 0x11cb72e 0x12ff937 0x11707c5 0x117092f 0x13005e8 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10d91c4 internal/poll.(*pollDesc).waitRead+0x1a4 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10d91a2 internal/poll.(*FD).Read+0x182 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159
# 0x11b8a8e net.(*netFD).Read+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55
# 0x11cb72d net.(*conn).Read+0x8d /usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182
# 0x12ff936 net/http.(*persistConn).Read+0x76 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887
# 0x11707c4 bufio.(*Reader).fill+0x104 /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101
# 0x117092e bufio.(*Reader).Peek+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139
# 0x13005e7 net/http.(*persistConn).readLoop+0x1a7 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10dad7c 0x10dad5e 0x11ba005 0x11d4052 0x11d2ee5 0x12e9de6 0x12e9b17 0x13acce6 0x13acc90 0x106fd81
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10dad7b internal/poll.(*pollDesc).waitRead+0x1fb /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10dad5d internal/poll.(*FD).Accept+0x1dd /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394
# 0x11ba004 net.(*netFD).accept+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172
# 0x11d4051 net.(*TCPListener).accept+0x31 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139
# 0x11d2ee4 net.(*TCPListener).Accept+0x64 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261
# 0x12e9de5 net/http.(*Server).Serve+0x265 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937
# 0x12e9b16 net/http.(*Server).ListenAndServe+0xb6 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866
# 0x13acce5 net/http.ListenAndServe+0x125 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
# 0x13acc8f main.main.func1+0xcf /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123
1 @ 0x103b125 0x104afcf 0x130223c 0x106fd81
# labels: {"test_label":"test_value"}
# 0x130223b net/http.(*persistConn).writeLoop+0x11b /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340
1 @ 0x103b125 0x104afcf 0x1302f59 0x12f74a5 0x12dd435 0x129e853 0x129e23f 0x12a025f 0x129fbbe 0x129fbce 0x13abba5 0x13abb8a 0x13acafe 0x13abe67 0x13ac247 0x103ad29 0x106fd81
# labels: {"test_label":"test_value"}
# 0x1302f58 net/http.(*persistConn).roundTrip+0x778 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2565
# 0x12f74a4 net/http.(*Transport).roundTrip+0xa64 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:582
# 0x12dd434 net/http.(*Transport).RoundTrip+0x34 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/roundtrip.go:17
# 0x129e852 net/http.send+0x452 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:252
# 0x129e23e net/http.(*Client).send+0xfe /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:176
# 0x12a025e net/http.(*Client).do+0x45e /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:718
# 0x129fbbd net/http.(*Client).Do+0xbd /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:586
# 0x129fbcd net/http.(*Client).Get+0xcd /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:475
# 0x13abba4 net/http.Get+0x104 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:447
# 0x13abb89 main.writeHttpProfile+0xe9 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:92
# 0x13acafd main.glob..func7+0x3d /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:79
# 0x13abe66 main.writeProfiles+0x186 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106
# 0x13ac246 main.main+0x2c6 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:142
# 0x103ad28 runtime.main+0x208 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/proc.go:204
1 @ 0x103b125 0x106cd1f 0x13ac48b 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac48a main.sleepLoop+0x2a /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171
1 @ 0x1069e1d 0x139efc2 0x139ed85 0x139b952 0x13a9865 0x13ab145 0x12e6424 0x12e834d 0x12e9a23 0x12e522d 0x106fd81
# 0x1069e1c runtime/pprof.runtime_goroutineProfileWithLabels+0x5c /usr/local/Cellar/go/1.15.6/libexec/src/runtime/mprof.go:716
# 0x139efc1 runtime/pprof.writeRuntimeProfile+0xe1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:724
# 0x139ed84 runtime/pprof.writeGoroutine+0xa4 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:684
# 0x139b951 runtime/pprof.(*Profile).WriteTo+0x3f1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331
# 0x13a9864 net/http/pprof.handler.ServeHTTP+0x384 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:256
# 0x13ab144 net/http/pprof.Index+0x944 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:367
# 0x12e6423 net/http.HandlerFunc.ServeHTTP+0x43 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2042
# 0x12e834c net/http.(*ServeMux).ServeHTTP+0x1ac /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2417
# 0x12e9a22 net/http.serverHandler.ServeHTTP+0xa2 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2843
# 0x12e522c net/http.(*conn).serve+0x8ac /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1925
1 @ 0x12def61 0x106fd81
# 0x12def60 net/http.(*connReader).backgroundRead+0x0 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:689

153
examples/goroutine/1.net.http.pprof.goroutine.debug2.txt Normal file
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goroutine 41 [running]:
runtime/pprof.writeGoroutineStacks(0x14e5f60, 0xc0001d6000, 0xc0001b6270, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:693 +0x9f
runtime/pprof.writeGoroutine(0x14e5f60, 0xc0001d6000, 0x2, 0x1714f40, 0xc0001ba420)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:682 +0x45
runtime/pprof.(*Profile).WriteTo(0x17179e0, 0x14e5f60, 0xc0001d6000, 0x2, 0xc0001d6000, 0xc0003379d8)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331 +0x3f2
net/http/pprof.handler.ServeHTTP(0xc0001ca071, 0x9, 0x14ec9a0, 0xc0001d6000, 0xc000110300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:256 +0x385
net/http/pprof.Index(0x14ec9a0, 0xc0001d6000, 0xc000110300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:367 +0x945
net/http.HandlerFunc.ServeHTTP(0x1486d90, 0x14ec9a0, 0xc0001d6000, 0xc000110300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2042 +0x44
net/http.(*ServeMux).ServeHTTP(0x1725ba0, 0x14ec9a0, 0xc0001d6000, 0xc000110300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2417 +0x1ad
net/http.serverHandler.ServeHTTP(0xc00019c000, 0x14ec9a0, 0xc0001d6000, 0xc000110300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2843 +0xa3
net/http.(*conn).serve(0xc0000c6320, 0x14ed4a0, 0xc000322000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1925 +0x8ad
created by net/http.(*Server).Serve
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2969 +0x36c
goroutine 1 [select]:
net/http.(*persistConn).roundTrip(0xc0000cea20, 0xc0001b40c0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2565 +0x779
net/http.(*Transport).roundTrip(0x171d020, 0xc0001ce000, 0x30, 0x30, 0x180de98)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:582 +0xa65
net/http.(*Transport).RoundTrip(0x171d020, 0xc0001ce000, 0x171d020, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/roundtrip.go:17 +0x35
net/http.send(0xc0001ce000, 0x14e5d80, 0x171d020, 0x0, 0x0, 0x0, 0xc0001c8018, 0x203000, 0x1, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:252 +0x453
net/http.(*Client).send(0x17259e0, 0xc0001ce000, 0x0, 0x0, 0x0, 0xc0001c8018, 0x0, 0x1, 0xf8)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:176 +0xff
net/http.(*Client).do(0x17259e0, 0xc0001ce000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:718 +0x45f
net/http.(*Client).Do(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:586
net/http.(*Client).Get(0x17259e0, 0xc0001cc000, 0x33, 0x2, 0x2, 0xc0001cc000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:475 +0xbe
net/http.Get(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:447
main.writeHttpProfile(0x14e5940, 0xc0001b6090, 0x2, 0x0, 0x0)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:92 +0x105
main.glob..func8(0x14e5940, 0xc0001b6090, 0xc000213eb0, 0x2)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:85 +0x3e
main.writeProfiles(0x1, 0xc0000c4008, 0x146641d)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106 +0x187
main.main()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:142 +0x2c7
goroutine 22 [sleep]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.indirectShortSleepLoop2
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:185 +0x35
goroutine 3 [IO wait]:
internal/poll.runtime_pollWait(0x1e91e88, 0x72, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e018, 0x72, 0x0, 0x0, 0x1465786)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc00019e000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394 +0x1fc
net.(*netFD).accept(0xc00019e000, 0x7d667d63cbbded3e, 0x1789ccbbded3e, 0x100000001)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172 +0x45
net.(*TCPListener).accept(0xc000188060, 0x60006709, 0xc000196da8, 0x109abe6)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000188060, 0xc000196df8, 0x18, 0xc000001200, 0x12e9eec)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261 +0x65
net/http.(*Server).Serve(0xc00019c000, 0x14ec6e0, 0xc000188060, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937 +0x266
net/http.(*Server).ListenAndServe(0xc00019c000, 0xc00019c000, 0x1475536)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866 +0xb7
net/http.ListenAndServe(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
main.main.func1(0xc000032120)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123 +0x126
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:121 +0xc5
goroutine 4 [sleep]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:130 +0x195
goroutine 5 [sleep]:
time.Sleep(0x34630b8a000)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.sleepLoop(0x34630b8a000)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171 +0x2b
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:131 +0x1bc
goroutine 6 [chan receive]:
main.chanReceiveForever()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177 +0x4d
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:132 +0x1d4
goroutine 24 [select]:
net/http.(*persistConn).writeLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340 +0x11c
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1709 +0xcdc
goroutine 23 [IO wait]:
internal/poll.runtime_pollWait(0x1e91da0, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00010e198, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x103b1dc, 0xc000199b58, 0x10680e0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000010008, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*persistConn).Read(0xc0000cea20, 0xc000256000, 0x1000, 0x1000, 0xc00009e300, 0xc000199c58, 0x10074b5)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887 +0x77
bufio.(*Reader).fill(0xc0001801e0)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101 +0x105
bufio.(*Reader).Peek(0xc0001801e0, 0x1, 0x0, 0x0, 0x1, 0x0, 0xc000030180)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139 +0x4f
net/http.(*persistConn).readLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040 +0x1a8
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1708 +0xcb7
goroutine 67 [IO wait]:
internal/poll.runtime_pollWait(0x1e91cb8, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e098, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00019e080, 0xc00007c311, 0x1, 0x1, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00019e080, 0xc00007c311, 0x1, 0x1, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000186028, 0xc00007c311, 0x1, 0x1, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*connReader).backgroundRead(0xc00007c300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:690 +0x58
created by net/http.(*connReader).startBackgroundRead
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:686 +0xd5

BIN
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39
examples/goroutine/1.pprof.lookup.goroutine.debug1.txt Normal file
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@ -0,0 +1,39 @@
goroutine profile: total 6
2 @ 0x103b125 0x106cd1f 0x13ac44a 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac449 main.shortSleepLoop+0x29 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165
1 @ 0x103b125 0x10083ef 0x100802b 0x13ac4ed 0x106fd81
# labels: {"test_label":"test_value"}
# 0x13ac4ec main.chanReceiveForever+0x4c /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10dad7c 0x10dad5e 0x11ba005 0x11d4052 0x11d2ee5 0x12e9de6 0x12e9b17 0x13acce6 0x13acc90 0x106fd81
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10dad7b internal/poll.(*pollDesc).waitRead+0x1fb /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10dad5d internal/poll.(*FD).Accept+0x1dd /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394
# 0x11ba004 net.(*netFD).accept+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172
# 0x11d4051 net.(*TCPListener).accept+0x31 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139
# 0x11d2ee4 net.(*TCPListener).Accept+0x64 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261
# 0x12e9de5 net/http.(*Server).Serve+0x265 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937
# 0x12e9b16 net/http.(*Server).ListenAndServe+0xb6 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866
# 0x13acce5 net/http.ListenAndServe+0x125 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
# 0x13acc8f main.main.func1+0xcf /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123
1 @ 0x103b125 0x106cd1f 0x13ac48b 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac48a main.sleepLoop+0x2a /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171
1 @ 0x1069e1d 0x139efc2 0x139ed85 0x139b952 0x13ac965 0x13abe67 0x13ac247 0x103ad29 0x106fd81
# labels: {"test_label":"test_value"}
# 0x1069e1c runtime/pprof.runtime_goroutineProfileWithLabels+0x5c /usr/local/Cellar/go/1.15.6/libexec/src/runtime/mprof.go:716
# 0x139efc1 runtime/pprof.writeRuntimeProfile+0xe1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:724
# 0x139ed84 runtime/pprof.writeGoroutine+0xa4 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:684
# 0x139b951 runtime/pprof.(*Profile).WriteTo+0x3f1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331
# 0x13ac964 main.glob..func4+0x64 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:60
# 0x13abe66 main.writeProfiles+0x186 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106
# 0x13ac246 main.main+0x2c6 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:142
# 0x103ad28 runtime.main+0x208 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/proc.go:204

69
examples/goroutine/1.pprof.lookup.goroutine.debug2.txt Normal file
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@ -0,0 +1,69 @@
goroutine 1 [running]:
runtime/pprof.writeGoroutineStacks(0x14e5940, 0xc0000abb00, 0x101b8a5, 0xc000213d20)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:693 +0x9f
runtime/pprof.writeGoroutine(0x14e5940, 0xc0000abb00, 0x2, 0xc000213dc0, 0x10ee5c8)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:682 +0x45
runtime/pprof.(*Profile).WriteTo(0x17179e0, 0x14e5940, 0xc0000abb00, 0x2, 0xc00002c210, 0xc0002041a0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331 +0x3f2
main.glob..func5(0x14e5940, 0xc0000abb00, 0xc000213eb0, 0x2)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:67 +0x65
main.writeProfiles(0x1, 0xc0000c4008, 0x146641d)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106 +0x187
main.main()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:142 +0x2c7
goroutine 22 [sleep]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.indirectShortSleepLoop2
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:185 +0x35
goroutine 3 [IO wait]:
internal/poll.runtime_pollWait(0x1e91e88, 0x72, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e018, 0x72, 0x0, 0x0, 0x1465786)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc00019e000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394 +0x1fc
net.(*netFD).accept(0xc00019e000, 0xc0001822d0, 0x1010038, 0xc000088000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172 +0x45
net.(*TCPListener).accept(0xc000188060, 0xc000196da8, 0x1010038, 0x30)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000188060, 0x1436c40, 0xc0001822d0, 0x13f4620, 0x1714f50)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261 +0x65
net/http.(*Server).Serve(0xc00019c000, 0x14ec6e0, 0xc000188060, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937 +0x266
net/http.(*Server).ListenAndServe(0xc00019c000, 0xc00019c000, 0x1475536)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866 +0xb7
net/http.ListenAndServe(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
main.main.func1(0xc000032120)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123 +0x126
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:121 +0xc5
goroutine 4 [sleep]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:130 +0x195
goroutine 5 [sleep]:
time.Sleep(0x34630b8a000)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.sleepLoop(0x34630b8a000)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171 +0x2b
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:131 +0x1bc
goroutine 6 [chan receive]:
main.chanReceiveForever()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177 +0x4d
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:132 +0x1d4

218
examples/goroutine/1.runtime.goroutineprofile.json Normal file
View File

@ -0,0 +1,218 @@
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63
examples/goroutine/1.runtime.stack.txt Normal file
View File

@ -0,0 +1,63 @@
goroutine 1 [running]:
main.glob..func1(0x14e5940, 0xc0000aa7b0, 0xc000064eb0, 0x2)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:29 +0x6f
main.writeProfiles(0x1, 0xc0000c4008, 0x146641d)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106 +0x187
main.main()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:142 +0x2c7
goroutine 22 [sleep]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.indirectShortSleepLoop2
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:185 +0x35
goroutine 3 [IO wait]:
internal/poll.runtime_pollWait(0x1e91e88, 0x72, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e018, 0x72, 0x0, 0x0, 0x1465786)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc00019e000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394 +0x1fc
net.(*netFD).accept(0xc00019e000, 0xc0001822d0, 0x1010038, 0xc000088000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172 +0x45
net.(*TCPListener).accept(0xc000188060, 0xc000196da8, 0x1010038, 0x30)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000188060, 0x1436c40, 0xc0001822d0, 0x13f4620, 0x1714f50)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261 +0x65
net/http.(*Server).Serve(0xc00019c000, 0x14ec6e0, 0xc000188060, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937 +0x266
net/http.(*Server).ListenAndServe(0xc00019c000, 0xc00019c000, 0x1475536)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866 +0xb7
net/http.ListenAndServe(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
main.main.func1(0xc000032120)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123 +0x126
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:121 +0xc5
goroutine 4 [sleep]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:130 +0x195
goroutine 5 [sleep]:
time.Sleep(0x34630b8a000)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.sleepLoop(0x34630b8a000)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171 +0x2b
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:131 +0x1bc
goroutine 6 [chan receive]:
main.chanReceiveForever()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177 +0x4d
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:132 +0x1d4

BIN
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77
examples/goroutine/2.net.http.pprof.goroutine.debug1.txt Normal file
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@ -0,0 +1,77 @@
goroutine profile: total 10
2 @ 0x103b125 0x106cd1f 0x13ac44a 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac449 main.shortSleepLoop+0x29 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165
1 @ 0x103b125 0x10083ef 0x100802b 0x13ac4ed 0x106fd81
# labels: {"test_label":"test_value"}
# 0x13ac4ec main.chanReceiveForever+0x4c /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10d91c5 0x10d91a3 0x11b8a8f 0x11cb72e 0x12ff937 0x11707c5 0x117092f 0x13005e8 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10d91c4 internal/poll.(*pollDesc).waitRead+0x1a4 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10d91a2 internal/poll.(*FD).Read+0x182 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159
# 0x11b8a8e net.(*netFD).Read+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55
# 0x11cb72d net.(*conn).Read+0x8d /usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182
# 0x12ff936 net/http.(*persistConn).Read+0x76 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887
# 0x11707c4 bufio.(*Reader).fill+0x104 /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101
# 0x117092e bufio.(*Reader).Peek+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139
# 0x13005e7 net/http.(*persistConn).readLoop+0x1a7 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10dad7c 0x10dad5e 0x11ba005 0x11d4052 0x11d2ee5 0x12e9de6 0x12e9b17 0x13acce6 0x13acc90 0x106fd81
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10dad7b internal/poll.(*pollDesc).waitRead+0x1fb /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10dad5d internal/poll.(*FD).Accept+0x1dd /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394
# 0x11ba004 net.(*netFD).accept+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172
# 0x11d4051 net.(*TCPListener).accept+0x31 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139
# 0x11d2ee4 net.(*TCPListener).Accept+0x64 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261
# 0x12e9de5 net/http.(*Server).Serve+0x265 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937
# 0x12e9b16 net/http.(*Server).ListenAndServe+0xb6 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866
# 0x13acce5 net/http.ListenAndServe+0x125 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
# 0x13acc8f main.main.func1+0xcf /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123
1 @ 0x103b125 0x104afcf 0x130223c 0x106fd81
# labels: {"test_label":"test_value"}
# 0x130223b net/http.(*persistConn).writeLoop+0x11b /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340
1 @ 0x103b125 0x104afcf 0x1302f59 0x12f74a5 0x12dd435 0x129e853 0x129e23f 0x12a025f 0x129fbbe 0x129fbce 0x13abba5 0x13abb8a 0x13acafe 0x13abe67 0x13ac352 0x103ad29 0x106fd81
# labels: {"test_label":"test_value"}
# 0x1302f58 net/http.(*persistConn).roundTrip+0x778 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2565
# 0x12f74a4 net/http.(*Transport).roundTrip+0xa64 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:582
# 0x12dd434 net/http.(*Transport).RoundTrip+0x34 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/roundtrip.go:17
# 0x129e852 net/http.send+0x452 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:252
# 0x129e23e net/http.(*Client).send+0xfe /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:176
# 0x12a025e net/http.(*Client).do+0x45e /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:718
# 0x129fbbd net/http.(*Client).Do+0xbd /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:586
# 0x129fbcd net/http.(*Client).Get+0xcd /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:475
# 0x13abba4 net/http.Get+0x104 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:447
# 0x13abb89 main.writeHttpProfile+0xe9 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:92
# 0x13acafd main.glob..func7+0x3d /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:79
# 0x13abe66 main.writeProfiles+0x186 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106
# 0x13ac351 main.main+0x3d1 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:152
# 0x103ad28 runtime.main+0x208 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/proc.go:204
1 @ 0x103b125 0x106cd1f 0x13ac48b 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac48a main.sleepLoop+0x2a /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171
1 @ 0x1069e1d 0x139efc2 0x139ed85 0x139b952 0x13a9865 0x13ab145 0x12e6424 0x12e834d 0x12e9a23 0x12e522d 0x106fd81
# 0x1069e1c runtime/pprof.runtime_goroutineProfileWithLabels+0x5c /usr/local/Cellar/go/1.15.6/libexec/src/runtime/mprof.go:716
# 0x139efc1 runtime/pprof.writeRuntimeProfile+0xe1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:724
# 0x139ed84 runtime/pprof.writeGoroutine+0xa4 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:684
# 0x139b951 runtime/pprof.(*Profile).WriteTo+0x3f1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331
# 0x13a9864 net/http/pprof.handler.ServeHTTP+0x384 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:256
# 0x13ab144 net/http/pprof.Index+0x944 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:367
# 0x12e6423 net/http.HandlerFunc.ServeHTTP+0x43 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2042
# 0x12e834c net/http.(*ServeMux).ServeHTTP+0x1ac /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2417
# 0x12e9a22 net/http.serverHandler.ServeHTTP+0xa2 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2843
# 0x12e522c net/http.(*conn).serve+0x8ac /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1925
1 @ 0x12def61 0x106fd81
# 0x12def60 net/http.(*connReader).backgroundRead+0x0 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:689

153
examples/goroutine/2.net.http.pprof.goroutine.debug2.txt Normal file
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@ -0,0 +1,153 @@
goroutine 41 [running]:
runtime/pprof.writeGoroutineStacks(0x14e5f60, 0xc0002ae000, 0xc0002a20c0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:693 +0x9f
runtime/pprof.writeGoroutine(0x14e5f60, 0xc0002ae000, 0x2, 0x1714f40, 0xc0002a4160)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:682 +0x45
runtime/pprof.(*Profile).WriteTo(0x17179e0, 0x14e5f60, 0xc0002ae000, 0x2, 0xc0002ae000, 0xc0003379d8)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331 +0x3f2
net/http/pprof.handler.ServeHTTP(0xc00029e011, 0x9, 0x14ec9a0, 0xc0002ae000, 0xc0001da100)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:256 +0x385
net/http/pprof.Index(0x14ec9a0, 0xc0002ae000, 0xc0001da100)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/pprof/pprof.go:367 +0x945
net/http.HandlerFunc.ServeHTTP(0x1486d90, 0x14ec9a0, 0xc0002ae000, 0xc0001da100)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2042 +0x44
net/http.(*ServeMux).ServeHTTP(0x1725ba0, 0x14ec9a0, 0xc0002ae000, 0xc0001da100)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2417 +0x1ad
net/http.serverHandler.ServeHTTP(0xc00019c000, 0x14ec9a0, 0xc0002ae000, 0xc0001da100)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2843 +0xa3
net/http.(*conn).serve(0xc0000c6320, 0x14ed4a0, 0xc000322000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1925 +0x8ad
created by net/http.(*Server).Serve
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2969 +0x36c
goroutine 1 [select]:
net/http.(*persistConn).roundTrip(0xc0000cea20, 0xc000322240, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2565 +0x779
net/http.(*Transport).roundTrip(0x171d020, 0xc0001da200, 0x30, 0x30, 0x180d7d0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:582 +0xa65
net/http.(*Transport).RoundTrip(0x171d020, 0xc0001da200, 0x171d020, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/roundtrip.go:17 +0x35
net/http.send(0xc0001da200, 0x14e5d80, 0x171d020, 0x0, 0x0, 0x0, 0xc000186040, 0x203000, 0x1, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:252 +0x453
net/http.(*Client).send(0x17259e0, 0xc0001da200, 0x0, 0x0, 0x0, 0xc000186040, 0x0, 0x1, 0xf8)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:176 +0xff
net/http.(*Client).do(0x17259e0, 0xc0001da200, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:718 +0x45f
net/http.(*Client).Do(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:586
net/http.(*Client).Get(0x17259e0, 0xc0001ce080, 0x33, 0x2, 0x2, 0xc0001ce080)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:475 +0xbe
net/http.Get(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/client.go:447
main.writeHttpProfile(0x14e5940, 0xc00007c630, 0x2, 0x0, 0x0)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:92 +0x105
main.glob..func8(0x14e5940, 0xc00007c630, 0xc000333eb0, 0x2)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:85 +0x3e
main.writeProfiles(0x2, 0xc0000c4008, 0x1466424)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106 +0x187
main.main()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:152 +0x3d2
goroutine 22 [sleep, 1 minutes]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.indirectShortSleepLoop2
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:185 +0x35
goroutine 3 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91e88, 0x72, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e018, 0x72, 0x0, 0x0, 0x1465786)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc00019e000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394 +0x1fc
net.(*netFD).accept(0xc00019e000, 0x7d667d63cbbded3e, 0x1789ccbbded3e, 0x100000001)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172 +0x45
net.(*TCPListener).accept(0xc000188060, 0x60006709, 0xc000196da8, 0x109abe6)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000188060, 0xc000196df8, 0x18, 0xc000001200, 0x12e9eec)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261 +0x65
net/http.(*Server).Serve(0xc00019c000, 0x14ec6e0, 0xc000188060, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937 +0x266
net/http.(*Server).ListenAndServe(0xc00019c000, 0xc00019c000, 0x1475536)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866 +0xb7
net/http.ListenAndServe(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
main.main.func1(0xc000032120)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123 +0x126
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:121 +0xc5
goroutine 4 [sleep, 1 minutes]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:130 +0x195
goroutine 5 [sleep, 1 minutes]:
time.Sleep(0x34630b8a000)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.sleepLoop(0x34630b8a000)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171 +0x2b
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:131 +0x1bc
goroutine 6 [chan receive, 1 minutes]:
main.chanReceiveForever()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177 +0x4d
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:132 +0x1d4
goroutine 24 [select]:
net/http.(*persistConn).writeLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340 +0x11c
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1709 +0xcdc
goroutine 23 [IO wait]:
internal/poll.runtime_pollWait(0x1e91da0, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00010e198, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x103b1dc, 0xc000199b58, 0x10680e0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000010008, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*persistConn).Read(0xc0000cea20, 0xc000256000, 0x1000, 0x1000, 0xc00009e300, 0xc000199c58, 0x10074b5)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887 +0x77
bufio.(*Reader).fill(0xc0001801e0)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101 +0x105
bufio.(*Reader).Peek(0xc0001801e0, 0x1, 0x0, 0x0, 0x1, 0x0, 0xc00009e240)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139 +0x4f
net/http.(*persistConn).readLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040 +0x1a8
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1708 +0xcb7
goroutine 54 [IO wait]:
internal/poll.runtime_pollWait(0x1e91cb8, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e098, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00019e080, 0xc00007c311, 0x1, 0x1, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00019e080, 0xc00007c311, 0x1, 0x1, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000186028, 0xc00007c311, 0x1, 0x1, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*connReader).backgroundRead(0xc00007c300)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:690 +0x58
created by net/http.(*connReader).startBackgroundRead
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:686 +0xd5

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73
examples/goroutine/2.pprof.lookup.goroutine.debug1.txt Normal file
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@ -0,0 +1,73 @@
goroutine profile: total 9
2 @ 0x103b125 0x106cd1f 0x13ac44a 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac449 main.shortSleepLoop+0x29 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165
1 @ 0x103b125 0x10083ef 0x100802b 0x13ac4ed 0x106fd81
# labels: {"test_label":"test_value"}
# 0x13ac4ec main.chanReceiveForever+0x4c /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10d91c5 0x10d91a3 0x11b8a8f 0x11cb72e 0x12df52d 0x11707c5 0x117151d 0x1171754 0x1263c2c 0x12d96ca 0x12d96f9 0x12e09ba 0x12e5085 0x106fd81
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10d91c4 internal/poll.(*pollDesc).waitRead+0x1a4 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10d91a2 internal/poll.(*FD).Read+0x182 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159
# 0x11b8a8e net.(*netFD).Read+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55
# 0x11cb72d net.(*conn).Read+0x8d /usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182
# 0x12df52c net/http.(*connReader).Read+0x1ac /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:798
# 0x11707c4 bufio.(*Reader).fill+0x104 /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101
# 0x117151c bufio.(*Reader).ReadSlice+0x3c /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:360
# 0x1171753 bufio.(*Reader).ReadLine+0x33 /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:389
# 0x1263c2b net/textproto.(*Reader).readLineSlice+0x6b /usr/local/Cellar/go/1.15.6/libexec/src/net/textproto/reader.go:58
# 0x12d96c9 net/textproto.(*Reader).ReadLine+0xa9 /usr/local/Cellar/go/1.15.6/libexec/src/net/textproto/reader.go:39
# 0x12d96f8 net/http.readRequest+0xd8 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/request.go:1012
# 0x12e09b9 net/http.(*conn).readRequest+0x199 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:984
# 0x12e5084 net/http.(*conn).serve+0x704 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1851
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10d91c5 0x10d91a3 0x11b8a8f 0x11cb72e 0x12ff937 0x11707c5 0x117092f 0x13005e8 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10d91c4 internal/poll.(*pollDesc).waitRead+0x1a4 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10d91a2 internal/poll.(*FD).Read+0x182 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159
# 0x11b8a8e net.(*netFD).Read+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55
# 0x11cb72d net.(*conn).Read+0x8d /usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182
# 0x12ff936 net/http.(*persistConn).Read+0x76 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887
# 0x11707c4 bufio.(*Reader).fill+0x104 /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101
# 0x117092e bufio.(*Reader).Peek+0x4e /usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139
# 0x13005e7 net/http.(*persistConn).readLoop+0x1a7 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040
1 @ 0x103b125 0x103425b 0x106a1d5 0x10d8185 0x10dad7c 0x10dad5e 0x11ba005 0x11d4052 0x11d2ee5 0x12e9de6 0x12e9b17 0x13acce6 0x13acc90 0x106fd81
# 0x106a1d4 internal/poll.runtime_pollWait+0x54 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222
# 0x10d8184 internal/poll.(*pollDesc).wait+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87
# 0x10dad7b internal/poll.(*pollDesc).waitRead+0x1fb /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
# 0x10dad5d internal/poll.(*FD).Accept+0x1dd /usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394
# 0x11ba004 net.(*netFD).accept+0x44 /usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172
# 0x11d4051 net.(*TCPListener).accept+0x31 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139
# 0x11d2ee4 net.(*TCPListener).Accept+0x64 /usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261
# 0x12e9de5 net/http.(*Server).Serve+0x265 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937
# 0x12e9b16 net/http.(*Server).ListenAndServe+0xb6 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866
# 0x13acce5 net/http.ListenAndServe+0x125 /usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
# 0x13acc8f main.main.func1+0xcf /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123
1 @ 0x103b125 0x104afcf 0x130223c 0x106fd81
# labels: {"test_label":"test_value"}
# 0x130223b net/http.(*persistConn).writeLoop+0x11b /usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340
1 @ 0x103b125 0x106cd1f 0x13ac48b 0x106fd81
# labels: {"test_label":"test_value"}
# 0x106cd1e time.Sleep+0xbe /usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188
# 0x13ac48a main.sleepLoop+0x2a /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171
1 @ 0x1069e1d 0x139efc2 0x139ed85 0x139b952 0x13ac965 0x13abe67 0x13ac352 0x103ad29 0x106fd81
# labels: {"test_label":"test_value"}
# 0x1069e1c runtime/pprof.runtime_goroutineProfileWithLabels+0x5c /usr/local/Cellar/go/1.15.6/libexec/src/runtime/mprof.go:716
# 0x139efc1 runtime/pprof.writeRuntimeProfile+0xe1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:724
# 0x139ed84 runtime/pprof.writeGoroutine+0xa4 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:684
# 0x139b951 runtime/pprof.(*Profile).WriteTo+0x3f1 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331
# 0x13ac964 main.glob..func4+0x64 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:60
# 0x13abe66 main.writeProfiles+0x186 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106
# 0x13ac351 main.main+0x3d1 /Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:152
# 0x103ad28 runtime.main+0x208 /usr/local/Cellar/go/1.15.6/libexec/src/runtime/proc.go:204

133
examples/goroutine/2.pprof.lookup.goroutine.debug2.txt Normal file
View File

@ -0,0 +1,133 @@
goroutine 1 [running]:
runtime/pprof.writeGoroutineStacks(0x14e5940, 0xc0000abc50, 0x101b8a5, 0xc000333d20)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:693 +0x9f
runtime/pprof.writeGoroutine(0x14e5940, 0xc0000abc50, 0x2, 0xc000333dc0, 0x10ee5c8)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:682 +0x45
runtime/pprof.(*Profile).WriteTo(0x17179e0, 0x14e5940, 0xc0000abc50, 0x2, 0xc00002c210, 0xc0000ac4e0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/pprof/pprof.go:331 +0x3f2
main.glob..func5(0x14e5940, 0xc0000abc50, 0xc000333eb0, 0x2)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:67 +0x65
main.writeProfiles(0x2, 0xc0000c4008, 0x1466424)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106 +0x187
main.main()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:152 +0x3d2
goroutine 22 [sleep, 1 minutes]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.indirectShortSleepLoop2
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:185 +0x35
goroutine 3 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91e88, 0x72, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e018, 0x72, 0x0, 0x0, 0x1465786)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc00019e000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394 +0x1fc
net.(*netFD).accept(0xc00019e000, 0x7d667d63cbbded3e, 0x1789ccbbded3e, 0x100000001)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172 +0x45
net.(*TCPListener).accept(0xc000188060, 0x60006709, 0xc000196da8, 0x109abe6)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000188060, 0xc000196df8, 0x18, 0xc000001200, 0x12e9eec)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261 +0x65
net/http.(*Server).Serve(0xc00019c000, 0x14ec6e0, 0xc000188060, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937 +0x266
net/http.(*Server).ListenAndServe(0xc00019c000, 0xc00019c000, 0x1475536)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866 +0xb7
net/http.ListenAndServe(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
main.main.func1(0xc000032120)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123 +0x126
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:121 +0xc5
goroutine 4 [sleep, 1 minutes]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:130 +0x195
goroutine 5 [sleep, 1 minutes]:
time.Sleep(0x34630b8a000)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.sleepLoop(0x34630b8a000)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171 +0x2b
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:131 +0x1bc
goroutine 6 [chan receive, 1 minutes]:
main.chanReceiveForever()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177 +0x4d
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:132 +0x1d4
goroutine 24 [select, 1 minutes]:
net/http.(*persistConn).writeLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340 +0x11c
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1709 +0xcdc
goroutine 23 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91da0, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00010e198, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x103b1dc, 0xc000199b58, 0x10680e0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000010008, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*persistConn).Read(0xc0000cea20, 0xc000256000, 0x1000, 0x1000, 0xc00009e300, 0xc000199c58, 0x10074b5)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887 +0x77
bufio.(*Reader).fill(0xc0001801e0)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101 +0x105
bufio.(*Reader).Peek(0xc0001801e0, 0x1, 0x0, 0x0, 0x1, 0x0, 0xc0001d0060)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139 +0x4f
net/http.(*persistConn).readLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040 +0x1a8
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1708 +0xcb7
goroutine 41 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91cb8, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e098, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00019e080, 0xc000326000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00019e080, 0xc000326000, 0x1000, 0x1000, 0x203000, 0x203000, 0x203000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000186028, 0xc000326000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*connReader).Read(0xc00007c300, 0xc000326000, 0x1000, 0x1000, 0x100000006, 0x10, 0x1819408)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:798 +0x1ad
bufio.(*Reader).fill(0xc000290060)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101 +0x105
bufio.(*Reader).ReadSlice(0xc000290060, 0xa, 0x1819408, 0xc000337988, 0x100f6d0, 0xc000110000, 0x100)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:360 +0x3d
bufio.(*Reader).ReadLine(0xc000290060, 0xc000110000, 0x1079694, 0xc0001a4000, 0x0, 0x1010038, 0x30)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:389 +0x34
net/textproto.(*Reader).readLineSlice(0xc000182300, 0xc000110000, 0x10d7c4d, 0xc00019e080, 0x1068000, 0xc000282900)
/usr/local/Cellar/go/1.15.6/libexec/src/net/textproto/reader.go:58 +0x6c
net/textproto.(*Reader).ReadLine(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/textproto/reader.go:39
net/http.readRequest(0xc000290060, 0x0, 0xc000110000, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/request.go:1012 +0xaa
net/http.(*conn).readRequest(0xc0000c6320, 0x14ed4a0, 0xc000322000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:984 +0x19a
net/http.(*conn).serve(0xc0000c6320, 0x14ed4a0, 0xc000322000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1851 +0x705
created by net/http.(*Server).Serve
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2969 +0x36c

326
examples/goroutine/2.runtime.goroutineprofile.json Normal file
View File

@ -0,0 +1,326 @@
[
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127
examples/goroutine/2.runtime.stack.txt Normal file
View File

@ -0,0 +1,127 @@
goroutine 1 [running]:
main.glob..func1(0x14e5940, 0xc0000aa7b0, 0xc000064eb0, 0x2)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:29 +0x6f
main.writeProfiles(0x2, 0xc0000c4008, 0x1466424)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:106 +0x187
main.main()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:152 +0x3d2
goroutine 22 [sleep, 1 minutes]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.indirectShortSleepLoop2
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:185 +0x35
goroutine 3 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91e88, 0x72, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e018, 0x72, 0x0, 0x0, 0x1465786)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc00019e000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:394 +0x1fc
net.(*netFD).accept(0xc00019e000, 0x7d667d63cbbded3e, 0x1789ccbbded3e, 0x100000001)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_unix.go:172 +0x45
net.(*TCPListener).accept(0xc000188060, 0x60006709, 0xc000196da8, 0x109abe6)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000188060, 0xc000196df8, 0x18, 0xc000001200, 0x12e9eec)
/usr/local/Cellar/go/1.15.6/libexec/src/net/tcpsock.go:261 +0x65
net/http.(*Server).Serve(0xc00019c000, 0x14ec6e0, 0xc000188060, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2937 +0x266
net/http.(*Server).ListenAndServe(0xc00019c000, 0xc00019c000, 0x1475536)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2866 +0xb7
net/http.ListenAndServe(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:3120
main.main.func1(0xc000032120)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:123 +0x126
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:121 +0xc5
goroutine 4 [sleep, 1 minutes]:
time.Sleep(0x3b9aca00)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.shortSleepLoop()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:165 +0x2a
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:130 +0x195
goroutine 5 [sleep, 1 minutes]:
time.Sleep(0x34630b8a000)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/time.go:188 +0xbf
main.sleepLoop(0x34630b8a000)
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:171 +0x2b
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:131 +0x1bc
goroutine 6 [chan receive, 1 minutes]:
main.chanReceiveForever()
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:177 +0x4d
created by main.main
/Users/felix.geisendoerfer/go/src/github.com/felixge/go-profiler-notes/examples/goroutine/main.go:132 +0x1d4
goroutine 24 [select, 1 minutes]:
net/http.(*persistConn).writeLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2340 +0x11c
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1709 +0xcdc
goroutine 23 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91da0, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00010e198, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00010e180, 0xc000256000, 0x1000, 0x1000, 0x103b1dc, 0xc000199b58, 0x10680e0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000010008, 0xc000256000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*persistConn).Read(0xc0000cea20, 0xc000256000, 0x1000, 0x1000, 0xc00009e300, 0xc000199c58, 0x10074b5)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1887 +0x77
bufio.(*Reader).fill(0xc0001801e0)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101 +0x105
bufio.(*Reader).Peek(0xc0001801e0, 0x1, 0x0, 0x0, 0x1, 0x0, 0xc0001d0060)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:139 +0x4f
net/http.(*persistConn).readLoop(0xc0000cea20)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:2040 +0x1a8
created by net/http.(*Transport).dialConn
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/transport.go:1708 +0xcb7
goroutine 41 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x1e91cb8, 0x72, 0x14e6ca0)
/usr/local/Cellar/go/1.15.6/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00019e098, 0x72, 0x14e6c00, 0x16db878, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00019e080, 0xc000326000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00019e080, 0xc000326000, 0x1000, 0x1000, 0x203000, 0x203000, 0x203000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000186028, 0xc000326000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/net.go:182 +0x8e
net/http.(*connReader).Read(0xc00007c300, 0xc000326000, 0x1000, 0x1000, 0x100000006, 0x10, 0x1819408)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:798 +0x1ad
bufio.(*Reader).fill(0xc000290060)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:101 +0x105
bufio.(*Reader).ReadSlice(0xc000290060, 0xa, 0x1819408, 0xc000337988, 0x100f6d0, 0xc000110000, 0x100)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:360 +0x3d
bufio.(*Reader).ReadLine(0xc000290060, 0xc000110000, 0x1079694, 0xc0001a4000, 0x0, 0x1010038, 0x30)
/usr/local/Cellar/go/1.15.6/libexec/src/bufio/bufio.go:389 +0x34
net/textproto.(*Reader).readLineSlice(0xc000182300, 0xc000110000, 0x10d7c4d, 0xc00019e080, 0x1068000, 0xc000282900)
/usr/local/Cellar/go/1.15.6/libexec/src/net/textproto/reader.go:58 +0x6c
net/textproto.(*Reader).ReadLine(...)
/usr/local/Cellar/go/1.15.6/libexec/src/net/textproto/reader.go:39
net/http.readRequest(0xc000290060, 0x0, 0xc000110000, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/request.go:1012 +0xaa
net/http.(*conn).readRequest(0xc0000c6320, 0x14ed4a0, 0xc000322000, 0x0, 0x0, 0x0)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:984 +0x19a
net/http.(*conn).serve(0xc0000c6320, 0x14ed4a0, 0xc000322000)
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:1851 +0x705
created by net/http.(*Server).Serve
/usr/local/Cellar/go/1.15.6/libexec/src/net/http/server.go:2969 +0x36c

186
examples/goroutine/main.go Normal file
View File

@ -0,0 +1,186 @@
package main
import (
"bytes"
"context"
"encoding/json"
"errors"
"flag"
"fmt"
"io"
"io/ioutil"
"net/http"
_ "net/http/pprof"
"runtime"
"runtime/pprof"
"time"
)
type Profile struct {
Name string
WriteTo func(w io.Writer) error
}
var profiles = []Profile{
{
Name: "runtime.stack.txt",
WriteTo: func(w io.Writer) error {
buf := make([]byte, 1024*1024)
n := runtime.Stack(buf, true)
buf = buf[:n]
_, err := w.Write(buf)
return err
},
},
{
Name: "runtime.goroutineprofile.json",
WriteTo: func(w io.Writer) error {
p := make([]runtime.StackRecord, 1000)
n, ok := runtime.GoroutineProfile(p)
if !ok {
return errors.New("runtime.GoroutineProfile: not ok")
}
p = p[0:n]
e := json.NewEncoder(w)
e.SetIndent("", " ")
return e.Encode(p)
},
},
{
Name: "pprof.lookup.goroutine.debug0.pb.gz",
WriteTo: func(w io.Writer) error {
profile := pprof.Lookup("goroutine")
return profile.WriteTo(w, 0)
},
},
{
Name: "pprof.lookup.goroutine.debug1.txt",
WriteTo: func(w io.Writer) error {
profile := pprof.Lookup("goroutine")
return profile.WriteTo(w, 1)
},
},
{
Name: "pprof.lookup.goroutine.debug2.txt",
WriteTo: func(w io.Writer) error {
profile := pprof.Lookup("goroutine")
return profile.WriteTo(w, 2)
},
},
{
Name: "net.http.pprof.goroutine.debug0.pb.gz",
WriteTo: func(w io.Writer) error {
return writeHttpProfile(w, 0)
},
},
{
Name: "net.http.pprof.goroutine.debug1.txt",
WriteTo: func(w io.Writer) error {
return writeHttpProfile(w, 1)
},
},
{
Name: "net.http.pprof.goroutine.debug2.txt",
WriteTo: func(w io.Writer) error {
return writeHttpProfile(w, 2)
},
},
}
func writeHttpProfile(w io.Writer, debug int) error {
url := fmt.Sprintf("http://%s/debug/pprof/goroutine?debug=%d", listenAddr, debug)
res, err := http.Get(url)
if err != nil {
return err
}
defer res.Body.Close()
_, err = io.Copy(w, res.Body)
return err
}
func writeProfiles(n int) error {
for _, profile := range profiles {
buf := &bytes.Buffer{}
filename := fmt.Sprintf("%d.%s", n, profile.Name)
if err := profile.WriteTo(buf); err != nil {
return err
} else if err := ioutil.WriteFile(filename, buf.Bytes(), 0666); err != nil {
return err
}
}
return nil
}
var listenAddr = "127.0.0.1:8080"
func main() {
flag.Parse()
errCh := make(chan error, 1)
go func() {
fmt.Printf("Listening for pprof requests on %s\n", listenAddr)
errCh <- http.ListenAndServe(listenAddr, nil)
}()
labels := pprof.Labels("test_label", "test_value")
ctx := pprof.WithLabels(context.Background(), labels)
pprof.SetGoroutineLabels(ctx)
go shortSleepLoop()
go sleepLoop(time.Hour)
go chanReceiveForever()
go indirectShortSleepLoop()
sleep := time.Second
fmt.Printf("Sleeping for %s followed by gc\n", sleep)
time.Sleep(time.Second)
runtime.GC()
fmt.Printf("Dump 1\n")
if err := writeProfiles(1); err != nil {
panic(err)
}
sleep = 1*time.Minute + 10*time.Second
fmt.Printf("Sleeping for %s followed by gc\n", sleep)
time.Sleep(sleep)
runtime.GC()
fmt.Printf("Dump 2\n")
if err := writeProfiles(2); err != nil {
panic(err)
}
fmt.Printf("Waiting forever\n")
//fmt.Printf("waiting indefinitely so you can press ctrl+\\ to compare the output\n")
//runtime.GC()
<-errCh
}
func shortSleepLoop() {
for {
time.Sleep(time.Second)
}
}
func sleepLoop(d time.Duration) {
for {
time.Sleep(d)
}
}
func chanReceiveForever() {
forever := make(chan struct{})
<-forever
}
func indirectShortSleepLoop() {
indirectShortSleepLoop2()
}
func indirectShortSleepLoop2() {
go shortSleepLoop()
}