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neo
Commit d28d7cef authored by Kirill Smelkov's avatar Kirill Smelkov
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parent 7a97206e
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Showing with 243 additions and 120 deletions
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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<text text-anchor="start" x="429.742" y="-321.04" font-family="Times,serif" font-size="14.00"> &#160;tests</text>
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<text text-anchor="middle" x="495.242" y="-14.3" font-family="Times,serif" font-size="14.00">? sha1 index</text>
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<text text-anchor="middle" x="614.242" y="-14.3" font-family="Times,serif" font-size="14.00">? go scheduling</text>
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<!-- Sgo_speed&#45;&gt;sha1_index -->
<g id="edge10" class="edge"><title>Sgo_speed&#45;&gt;sha1_index</title>
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<text text-anchor="middle" x="451.242" y="-14.3" font-family="Times,serif" font-size="14.00">? GOMAXPROCS</text>
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<!-- Sgo_speed&#45;&gt;garbage -->
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<g id="edge13" class="edge"><title>QSgo_speed&#45;&gt;Mmap_go</title>
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<!-- Sgo_speed&#45;&gt;gosched -->
<g id="edge12" class="edge"><title>Sgo_speed&#45;&gt;gosched</title>
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<g id="edge14" class="edge"><title>QSgo_speed&#45;&gt;sha1_index</title>
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<g id="node12" class="node"><title>Cpy_r_Sgo</title>
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<g id="edge13" class="edge"><title>Cpy_r_Sgo&#45;&gt;Sgo</title>
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<g id="node13" class="node"><title>Cgo_r_Sgo</title>
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<!-- Cgo_r_Sgo&#45;&gt;Cgo -->
<g id="edge14" class="edge"><title>Cgo_r_Sgo&#45;&gt;Cgo</title>
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<!-- Cgo_r_Sgo&#45;&gt;Sgo -->
<g id="edge15" class="edge"><title>Cgo_r_Sgo&#45;&gt;Sgo</title>
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<!-- Cgo_r_Spy -->
<g id="node14" class="node"><title>Cgo_r_Spy</title>
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<g id="edge16" class="edge"><title>Cgo_r_Spy&#45;&gt;Cgo</title>
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<!-- Cleanup -->
<g id="node15" class="node"><title>Cleanup</title>
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<text text-anchor="middle" x="718.242" y="-464.04" font-family="Times,serif" font-size="14.00">Post</text>
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