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Levin Zimmermann
neoppod
Commits
d28d7cef
Commit
d28d7cef
authored
Sep 07, 2017
by
Kirill Smelkov
Browse files
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.
parent
7a97206e
Changes
4
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Showing
4 changed files
with
243 additions
and
120 deletions
+243
-120
go/NOTES-go
go/NOTES-go
+14
-0
go/neo/connection_test.go
go/neo/connection_test.go
+13
-4
go/todo.dot
go/todo.dot
+31
-7
go/todo.svg
go/todo.svg
+185
-109
No files found.
go/NOTES-go
View file @
d28d7cef
...
...
@@ -3,6 +3,20 @@
? random access -> mmap
- scheduler won't use free P if a G is taking time and other Gs are queued after it on the same P:
https://groups.google.com/forum/#!topic/golang-nuts/8KYER1ALelg
e870f06c (runtime: yield time slice to most recently readied G)
ea0386f8 (runtime: improve randomized stealing logic)
4bb491b1 (runtime: improve scheduler fairness)
/s steal
findrunnable
runqsteal
? runqgrab
schedule <- top entry
https://golang.org/s/go11sched -> syscall/M partking and Unparking/Spinning
----------------------------------------
- TODO stats for events (packets received, errors, etc)
...
...
go/neo/connection_test.go
View file @
d28d7cef
...
...
@@ -36,6 +36,8 @@ import (
"github.com/kylelemons/godebug/pretty"
"github.com/pkg/errors"
"runtime"
)
func
xclose
(
c
io
.
Closer
)
{
...
...
@@ -721,11 +723,9 @@ func TestHandshake(t *testing.T) {
// ---- benchmarks ----
// rtt over chan - for comparision as base
func
BenchmarkChanRTT
(
b
*
testing
.
B
)
{
c12
:=
make
(
chan
byte
)
c21
:=
make
(
chan
byte
)
func
benchmarkChanRTT
(
b
*
testing
.
B
,
c12
,
c21
chan
byte
)
{
go
func
()
{
runtime
.
LockOSThread
()
for
{
c
,
ok
:=
<-
c12
if
!
ok
{
...
...
@@ -748,6 +748,15 @@ func BenchmarkChanRTT(b *testing.B) {
close
(
c12
)
}
func
BenchmarkSyncChanRTT
(
b
*
testing
.
B
)
{
benchmarkChanRTT
(
b
,
make
(
chan
byte
),
make
(
chan
byte
))
}
func
BenchmarkBufChanRTT
(
b
*
testing
.
B
)
{
benchmarkChanRTT
(
b
,
make
(
chan
byte
,
1
),
make
(
chan
byte
,
1
))
}
// rtt over net.Conn Read/Write
func
benchmarkNetConnRTT
(
b
*
testing
.
B
,
c1
,
c2
net
.
Conn
)
{
buf1
:=
make
([]
byte
,
1
)
...
...
go/todo.dot
View file @
d28d7cef
...
...
@@ -10,11 +10,24 @@ digraph {
Sgo
->
load_serial_next
;
Sgo
->
Sgo_speed
;
Sgo_speed
->
Mmap_go
;
Sgo_speed
->
sha1_index
;
//Sgo_speed -> B_link_recv;
Sgo_speed
->
garbage
;
Sgo_speed
->
gosched
;
//Sgo_speed -> gosched;
Sgo_speed
->
diskio
;
Sgo_speed
->
ConnClose_notimer
;
Sgo_speed
->
QSgo_speed
;
QSgo_speed
->
Mmap_go
;
QSgo_speed
->
sha1_index
;
garbage
->
pktbuf_alloc
;
garbage
->
msg_alloc
;
garbage
->
conn_alloc
;
diskio
->
gosched
;
diskio
->
GOMAXPROCS
;
Cpy_r_Sgo
->
Sgo
;
//Cpy_r_Sgo -> Protog_fix;
...
...
@@ -33,12 +46,13 @@ digraph {
Mgo
[
label
=<
M
<sub>
go
</sub>
>
style
=
filled
fillcolor
=
lightyellow
]
;
SCgo_t
[
label
=<
S
<sub>
go
</sub>
/ C
<sub>
go
</sub>
tests
>
style
=
filled
fillcolor
=
lightyellow
]
;
Sgo_speed
[
label
=<
S
<sub>
go
</sub>
speed/latency
>
]
;
Cpy_r_Sgo
[
label
=<
C
<sub>
py
</sub>
read S
<sub>
go
</sub>
>
]
;
Cgo_r_Sgo
[
label
=<
C
<sub>
go
</sub>
read S
<sub>
go
</sub>
>
]
;
Cgo_r_Spy
[
label
=<
C
<sub>
go
</sub>
read S
<sub>
py
</sub>
>
]
;
Cpy_r_Sgo
[
label
=<
C
<sub>
py
</sub>
read S
<sub>
go
</sub>
>
style
=
filled
fillcolor
=
lightyellow
]
;
Cgo_r_Sgo
[
label
=<
C
<sub>
go
</sub>
read S
<sub>
go
</sub>
>
style
=
filled
fillcolor
=
lightyellow
]
;
Cgo_r_Spy
[
label
=<
C
<sub>
go
</sub>
read S
<sub>
py
</sub>
>
style
=
filled
fillcolor
=
lightyellow
]
;
Cleanup
[
label
=
"Cleanup history"
]
;
Post
[
label
=
"Post"
]
;
//Cpy_patch [label=<py patch: ConnID py=go> style=filled fillcolor=lightyellow]; // C<sub>py</sub> patch for ConnID interop. with S<sub>go</sub>>];
Mmap_go
[
label
=
"io.ReaderAt via mmap"
]
;
Mmap_go
[
label
=
"
?
io.ReaderAt via mmap"
]
;
//Protog_fix [label="proto(go/py) compat fix" style=filled fillcolor=lightyellow];
//Mpy_vs_Sgo [label=<M<sub>py</sub> vs S<sub>go</sub>: try/fix> style=filled fillcolor=lightyellow];
...
...
@@ -52,4 +66,14 @@ digraph {
//Cgo -> Cgo_tasks;
//Cgo_tasks [label="- talkMaster\n- update nodeTab/partTab\n- dial S on demand\n..." style=filled fillcolor=lightyellow];
QSgo_speed
[
label
=<
?
>
]
;
pktbuf_alloc
[
label
=<
PktBuf
>
]
;
msg_alloc
[
label
=<
Msg
>
]
;
conn_alloc
[
label
=<
Conn
>
]
;
ConnClose_notimer
[
label
=
"Conn.Close\nno timer"
]
;
diskio
[
label
=
"disk io"
]
;
GOMAXPROCS
[
label
=
"? GOMAXPROCS"
]
;
}
go/todo.svg
View file @
d28d7cef
...
...
@@ -4,184 +4,260 @@
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xmlns=
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xmlns:xlink=
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<g
id=
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transform=
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<title>
%3
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stroke=
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font-family=
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baseline-shift=
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go
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<ellipse
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cx=
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<text
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font-family=
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go
</text>
</g>
<!-- SCgo_t -->
<g
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class=
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><title>
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<ellipse
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stroke=
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cy=
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go
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font-family=
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go
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<text
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x=
"429.742"
y=
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font-family=
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font-size=
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>
 
tests
</text>
<ellipse
fill=
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stroke=
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cx=
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323.7
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go
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<text
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font-family=
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font-size=
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tests
</text>
</g>
<!-- Cgo->SCgo_t -->
<g
id=
"edge1"
class=
"edge"
><title>
Cgo
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</title>
<path
fill=
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d=
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/>
</g>
<!-- SCgo_t->Cgo -->
<g
id=
"edge5"
class=
"edge"
><title>
SCgo_t
->
Cgo
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M422.121,-
251.956C422.956,-259.827 423.19,-269.374 422.825,-278.18
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<path
fill=
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341.696C422.956,-349.567 423.19,-359.114 422.825,-367.92
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<polygon
fill=
"black"
stroke=
"black"
points=
"419.316,-
367.924 422.082,-378.151 426.297,-368.431 419.316,-367.92
4"
/>
</g>
<!-- Sgo -->
<g
id=
"node3"
class=
"node"
><title>
Sgo
</title>
<ellipse
fill=
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stroke=
"black"
cx=
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cy=
"-
162
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rx=
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<text
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<text
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go
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<ellipse
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cy=
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rx=
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ry=
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/>
<text
text-anchor=
"start"
x=
"320.742"
y=
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font-family=
"Times,serif"
font-size=
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>
S
</text>
<text
text-anchor=
"start"
x=
"328.742"
y=
"-
249.04
"
font-family=
"Times,serif"
baseline-shift=
"sub"
font-size=
"14.00"
>
go
</text>
</g>
<!-- SCgo_t->Sgo -->
<g
id=
"edge4"
class=
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><title>
SCgo_t
->
Sgo
</title>
<path
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<!-- Mgo -->
<g
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class=
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><title>
Mgo
</title>
<ellipse
fill=
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cy=
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rx=
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<text
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font-family=
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<text
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<ellipse
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go
</text>
</g>
<!-- SCgo_t->Mgo -->
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class=
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SCgo_t
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Mgo
</title>
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<!-- Sgo->SCgo_t -->
<g
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"edge2"
class=
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<path
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</g>
<!-- io_cancel -->
<g
id=
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class=
"node"
><title>
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<ellipse
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font-size=
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? conn IO vs ctx cancel
</text>
<ellipse
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? conn IO vs ctx cancel
</text>
</g>
<!-- Sgo->io_cancel -->
<g
id=
"edge6"
class=
"edge"
><title>
Sgo
->
io_cancel
</title>
<path
fill=
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stroke=
"black"
d=
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stroke=
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d=
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</g>
<!-- load_serial_next -->
<g
id=
"node6"
class=
"node"
><title>
load_serial_next
</title>
<ellipse
fill=
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stroke=
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cy=
"-
90
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rx=
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<text
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x=
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y=
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87.3
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font-family=
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font-size=
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? GetObject return += serial
</text>
<text
text-anchor=
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x=
"398.242"
y=
"-
87.3
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font-family=
"Times,serif"
baseline-shift=
"sub"
font-size=
"14.00"
>
next
</text>
<ellipse
fill=
"none"
stroke=
"black"
cx=
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cy=
"-
179.74
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rx=
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<text
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x=
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y=
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177.04
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font-family=
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font-size=
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? GetObject return += serial
</text>
<text
text-anchor=
"start"
x=
"398.242"
y=
"-
177.04
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font-family=
"Times,serif"
baseline-shift=
"sub"
font-size=
"14.00"
>
next
</text>
</g>
<!-- Sgo->load_serial_next -->
<g
id=
"edge7"
class=
"edge"
><title>
Sgo
->
load_serial_next
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M331.242,-
143.697C331.242,-135.983 331.242,-126.712 331.242,-118.112
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stroke=
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<path
fill=
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stroke=
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d=
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stroke=
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</g>
<!-- Sgo_speed -->
<g
id=
"node7"
class=
"node"
><title>
Sgo_speed
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"551.242"
cy=
"-
90
"
rx=
"77.1866"
ry=
"18"
/>
<text
text-anchor=
"start"
x=
"499.742"
y=
"-
87.3
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font-family=
"Times,serif"
font-size=
"14.00"
>
S
</text>
<text
text-anchor=
"start"
x=
"507.742"
y=
"-
87.3
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font-family=
"Times,serif"
baseline-shift=
"sub"
font-size=
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go
</text>
<text
text-anchor=
"start"
x=
"520.742"
y=
"-
87.3
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font-family=
"Times,serif"
font-size=
"14.00"
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speed/latency
</text>
<ellipse
fill=
"none"
stroke=
"black"
cx=
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cy=
"-
179.74
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rx=
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ry=
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<text
text-anchor=
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x=
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y=
"-
177.04
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font-family=
"Times,serif"
font-size=
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S
</text>
<text
text-anchor=
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x=
"507.742"
y=
"-
177.04
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font-family=
"Times,serif"
baseline-shift=
"sub"
font-size=
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go
</text>
<text
text-anchor=
"start"
x=
"520.742"
y=
"-
177.04
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font-family=
"Times,serif"
font-size=
"14.00"
>
 
speed/latency
</text>
</g>
<!-- Sgo->Sgo_speed -->
<g
id=
"edge8"
class=
"edge"
><title>
Sgo
->
Sgo_speed
</title>
<path
fill=
"none"
stroke=
"black"
d=
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fill=
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stroke=
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<path
fill=
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stroke=
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d=
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fill=
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stroke=
"black"
points=
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</g>
<!--
Mmap_go
-->
<g
id=
"node8"
class=
"node"
><title>
Mmap_go
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"
329.242"
cy=
"-18"
rx=
"92.0841
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ry=
"18"
/>
<text
text-anchor=
"middle"
x=
"
329.242"
y=
"-14.3"
font-family=
"Times,serif"
font-size=
"14.00"
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io.ReaderAt via mmap
</text>
<!--
garbage
-->
<g
id=
"node8"
class=
"node"
><title>
garbage
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"
277.242"
cy=
"-98.8701"
rx=
"38.1938
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ry=
"18"
/>
<text
text-anchor=
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x=
"
277.242"
y=
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font-family=
"Times,serif"
font-size=
"14.00"
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garbage
</text>
</g>
<!-- Sgo_speed->Mmap_go -->
<g
id=
"edge9"
class=
"edge"
><title>
Sgo_speed
->
Mmap_go
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M507.382,-75.1703C472.467,-64.161 423.355,-48.6754 385.539,-36.7513"
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<polygon
fill=
"black"
stroke=
"black"
points=
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<!-- Sgo_speed->garbage -->
<g
id=
"edge9"
class=
"edge"
><title>
Sgo_speed
->
garbage
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M504.451,-165.271C452.4,-150.289 369.077,-126.304 319.106,-111.921"
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<polygon
fill=
"black"
stroke=
"black"
points=
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</g>
<!-- diskio -->
<g
id=
"node9"
class=
"node"
><title>
diskio
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"497.242"
cy=
"-98.8701"
rx=
"34.394"
ry=
"18"
/>
<text
text-anchor=
"middle"
x=
"497.242"
y=
"-95.1701"
font-family=
"Times,serif"
font-size=
"14.00"
>
disk io
</text>
</g>
<!-- Sgo_speed->diskio -->
<g
id=
"edge10"
class=
"edge"
><title>
Sgo_speed
->
diskio
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M539.524,-161.626C532.086,-150.762 522.34,-136.528 514.08,-124.464"
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fill=
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stroke=
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points=
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</g>
<!-- ConnClose_notimer -->
<g
id=
"node10"
class=
"node"
><title>
ConnClose_notimer
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"606.242"
cy=
"-98.8701"
rx=
"56.6372"
ry=
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/>
<text
text-anchor=
"middle"
x=
"606.242"
y=
"-102.67"
font-family=
"Times,serif"
font-size=
"14.00"
>
Conn.Close
</text>
<text
text-anchor=
"middle"
x=
"606.242"
y=
"-87.6701"
font-family=
"Times,serif"
font-size=
"14.00"
>
no timer
</text>
</g>
<!-- Sgo_speed->ConnClose_notimer -->
<g
id=
"edge11"
class=
"edge"
><title>
Sgo_speed
->
ConnClose_notimer
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M563.176,-161.626C568.992,-153.287 576.192,-142.961 583.03,-133.156"
/>
<polygon
fill=
"black"
stroke=
"black"
points=
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</g>
<!-- QSgo_speed -->
<g
id=
"node11"
class=
"node"
><title>
QSgo_speed
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"754.242"
cy=
"-98.8701"
rx=
"27"
ry=
"18"
/>
<text
text-anchor=
"start"
x=
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y=
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font-family=
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font-size=
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?
</text>
</g>
<!-- Sgo_speed->QSgo_speed -->
<g
id=
"edge12"
class=
"edge"
><title>
Sgo_speed
->
QSgo_speed
</title>
<path
fill=
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stroke=
"black"
d=
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stroke=
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<!-- pktbuf_alloc -->
<g
id=
"node14"
class=
"node"
><title>
pktbuf_alloc
</title>
<ellipse
fill=
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stroke=
"black"
cx=
"319.242"
cy=
"-18"
rx=
"35.9954"
ry=
"18"
/>
<text
text-anchor=
"start"
x=
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y=
"-14.3"
font-family=
"Times,serif"
font-size=
"14.00"
>
PktBuf
</text>
</g>
<!-- garbage->pktbuf_alloc -->
<g
id=
"edge15"
class=
"edge"
><title>
garbage
->
pktbuf_alloc
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M286.149,-81.1437C291.773,-70.5825 299.152,-56.7249 305.515,-44.7762"
/>
<polygon
fill=
"black"
stroke=
"black"
points=
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</g>
<!-- msg_alloc -->
<g
id=
"node15"
class=
"node"
><title>
msg_alloc
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"160.242"
cy=
"-18"
rx=
"27"
ry=
"18"
/>
<text
text-anchor=
"start"
x=
"147.742"
y=
"-14.3"
font-family=
"Times,serif"
font-size=
"14.00"
>
Msg
</text>
</g>
<!-- garbage->msg_alloc -->
<g
id=
"edge16"
class=
"edge"
><title>
garbage
->
msg_alloc
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M256.324,-83.7697C237,-70.743 208.187,-51.3204 187.155,-37.1423"
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<polygon
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stroke=
"black"
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</g>
<!-- conn_alloc -->
<g
id=
"node16"
class=
"node"
><title>
conn_alloc
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"235.242"
cy=
"-18"
rx=
"29.795"
ry=
"18"
/>
<text
text-anchor=
"start"
x=
"220.242"
y=
"-14.3"
font-family=
"Times,serif"
font-size=
"14.00"
>
Conn
</text>
</g>
<!-- garbage->conn_alloc -->
<g
id=
"edge17"
class=
"edge"
><title>
garbage
->
conn_alloc
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M268.335,-81.1437C262.672,-70.5112 255.231,-56.5375 248.839,-44.5342"
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<polygon
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stroke=
"black"
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</g>
<!--
sha1_index
-->
<g
id=
"node
9"
class=
"node"
><title>
sha1_index
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"
495.242"
cy=
"-18"
rx=
"55.4913
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ry=
"18"
/>
<text
text-anchor=
"middle"
x=
"
495.242"
y=
"-14.3"
font-family=
"Times,serif"
font-size=
"14.00"
>
? sha1 index
</text>
<!--
gosched
-->
<g
id=
"node
17"
class=
"node"
><title>
gosched
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
"
614.242"
cy=
"-18"
rx=
"66.0889
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ry=
"18"
/>
<text
text-anchor=
"middle"
x=
"
614.242"
y=
"-14.3"
font-family=
"Times,serif"
font-size=
"14.00"
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? go scheduling
</text>
</g>
<!--
Sgo_speed->sha1_index
-->
<g
id=
"edge1
0"
class=
"edge"
><title>
Sgo_speed
->
sha1_index
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M5
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stroke=
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/>
<!--
diskio->gosched
-->
<g
id=
"edge1
8"
class=
"edge"
><title>
diskio
->
gosched
</title>
<path
fill=
"none"
stroke=
"black"
d=
"M5
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/>
<polygon
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stroke=
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points=
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</g>
<!--
garbage
-->
<g
id=
"node1
0"
class=
"node"
><title>
garbage
</title>
<ellipse
fill=
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stroke=
"black"
cx=
"
607.242"
cy=
"-18"
rx=
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ry=
"18"
/>
<text
text-anchor=
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x=
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607.242"
y=
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font-family=
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font-size=
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garbage
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<!--
GOMAXPROCS
-->
<g
id=
"node1
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class=
"node"
><title>
GOMAXPROCS
</title>
<ellipse
fill=
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stroke=
"black"
cx=
"
451.242"
cy=
"-18"
rx=
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ry=
"18"
/>
<text
text-anchor=
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x=
"
451.242"
y=
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font-family=
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font-size=
"14.00"
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? GOMAXPROCS
</text>
</g>
<!--
Sgo_speed->garbage
-->
<g
id=
"edge1
1"
class=
"edge"
><title>
Sgo_speed
->
garbage
</title>
<path
fill=
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stroke=
"black"
d=
"M
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stroke=
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<!--
diskio->GOMAXPROCS
-->
<g
id=
"edge1
9"
class=
"edge"
><title>
diskio
->
GOMAXPROCS
</title>
<path
fill=
"none"
stroke=
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d=
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stroke=
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<!-- gosched -->
<g
id=
"node11"
class=
"node"
><title>
gosched
</title>
<ellipse
fill=
"none"
stroke=
"black"
cx=
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cy=
"-18"
rx=
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ry=
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<text
text-anchor=
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x=
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font-family=
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font-size=
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? go scheduling
</text>
<!-- Mmap_go -->
<g
id=
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class=
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><title>
Mmap_go
</title>
<ellipse
fill=
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stroke=
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cx=
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cy=
"-18"
rx=
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<text
text-anchor=
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x=
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y=
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font-family=
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font-size=
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? io.ReaderAt via mmap
</text>
</g>
<!-- QSgo_speed->Mmap_go -->
<g
id=
"edge13"
class=
"edge"
><title>
QSgo_speed
->
Mmap_go
</title>
<path
fill=
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stroke=
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d=
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<!-- sha1_index -->
<g
id=
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class=
"node"
><title>
sha1_index
</title>
<ellipse
fill=
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stroke=
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cx=
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cy=
"-18"
rx=
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ry=
"18"
/>
<text
text-anchor=
"middle"
x=
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y=
"-14.3"
font-family=
"Times,serif"
font-size=
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? sha1 index
</text>
</g>
<!--
Sgo_speed->gosched
-->
<g
id=
"edge1
2"
class=
"edge"
><title>
Sgo_speed
->
gosched
</title>
<path
fill=
"none"
stroke=
"black"
d=
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stroke=
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<!--
QSgo_speed->sha1_index
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