upd deps

* Add files via upload

* Update README.md

.gitignore

@@ -24,3 +24,5 @@ _testmain.go
 *.prof
 client/client
 server/server
+build/*
+.DS_Store

README.md

@@ -69,12 +69,16 @@ All precompiled releases are genereated from `build-release.sh` script.
 
 ### Performance
 
-<img src="fast.png" alt="fast.com" height="256px" />    
+<img src="fast.png" alt="fast.com" height="256px" />  
 
-<img src="bw.png" alt="bandwidth usage graph" height="256px" />       
+![bandwidth](bw.png)
+
+![flame](flame.png)
 
 > Practical bandwidth graph with parameters:  -mode fast3 -ds 10 -ps 3
 
+
+
 ### Basic Tuning Guide
 
 #### Improving Thoughput

build-release.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
+BUILD_DIR=$(dirname "$0")/build
+mkdir -p $BUILD_DIR
+cd $BUILD_DIR
+
 sum="sha1sum"
 
 echo "If you need reproducible build, export GO111MODULE=on first"

client/main.go

@@ -77,10 +77,18 @@ func handleClient(sess *smux.Session, p1 io.ReadWriteCloser, quiet bool) {
 	streamCopy := func(dst io.Writer, src io.Reader) chan struct{} {
 		die := make(chan struct{})
 		go func() {
-			buf := xmitBuf.Get().([]byte)
-			io.CopyBuffer(dst, src, buf)
-			xmitBuf.Put(buf)
-			close(die)
+			if wt, ok := src.(io.WriterTo); ok {
+				wt.WriteTo(dst)
+				close(die)
+			} else if rt, ok := dst.(io.ReaderFrom); ok {
+				rt.ReadFrom(src)
+				close(die)
+			} else {
+				buf := xmitBuf.Get().([]byte)
+				io.CopyBuffer(dst, src, buf)
+				xmitBuf.Put(buf)
+				close(die)
+			}
 		}()
 		return die
 	}

go.mod

@@ -9,9 +9,11 @@ require (
 	github.com/templexxx/xor v0.0.0-20181023030647-4e92f724b73b // indirect
 	github.com/tjfoc/gmsm v1.0.1 // indirect
 	github.com/urfave/cli v1.20.0
-	github.com/xtaci/kcp-go v5.2.5+incompatible
-	github.com/xtaci/smux v1.2.9
-	golang.org/x/crypto v0.0.0-20190422183909-d864b10871cd
-	golang.org/x/net v0.0.0-20190420063019-afa5a82059c6 // indirect
-	golang.org/x/sys v0.0.0-20190422165155-953cdadca894 // indirect
+	github.com/xtaci/kcp-go v5.2.8+incompatible
+	github.com/xtaci/smux v1.2.10
+	golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734
+	golang.org/x/net v0.0.0-20190424112056-4829fb13d2c6 // indirect
+	golang.org/x/sys v0.0.0-20190426135247-a129542de9ae // indirect
+	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/tools v0.0.0-20190428024724-550556f78a90 // indirect
 )

go.sum

@@ -32,6 +32,11 @@ github.com/xtaci/kcp-go v5.2.4+incompatible h1:96bjdOFrUFfU4wYXqGwPJkEOdvnVwciGl
 github.com/xtaci/kcp-go v5.2.4+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
 github.com/xtaci/kcp-go v5.2.5+incompatible h1:9C3xCFYCw6HUMN1/DQhLlUcbx1DmFiLbpiNA/moLYPM=
 github.com/xtaci/kcp-go v5.2.5+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
+github.com/xtaci/kcp-go v5.2.6+incompatible h1:WokjD7IJJopwivFVIleBjmuHYlhGTlR/JAhCsapl1dk=
+github.com/xtaci/kcp-go v5.2.6+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
+github.com/xtaci/kcp-go v5.2.7+incompatible h1:NkJrwfMj3K6lRHfppR8H+oayahPS6GkGGF4BKiRAiFg=
+github.com/xtaci/kcp-go v5.2.7+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
+github.com/xtaci/kcp-go v5.2.8+incompatible/go.mod h1:bN6vIwHQbfHaHtFpEssmWsN45a+AZwO7eyRCmEIbtvE=
 github.com/xtaci/smux v1.1.1 h1:ZyIo9XHuHkAeENzHR8yGWC+6xUSCTeP2tPTRE8mnLvc=
 github.com/xtaci/smux v1.1.1/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
 github.com/xtaci/smux v1.1.2 h1:AeAzHKqvDeFEcicL9Q06LTjIVW2I55iooUbpDRGHth4=
@@ -52,6 +57,8 @@ github.com/xtaci/smux v1.2.8 h1:mNFGEdnACCih1aER/JF4JVJIcOl7Mkf5yrQNzdDY6jg=
 github.com/xtaci/smux v1.2.8/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
 github.com/xtaci/smux v1.2.9 h1:aLBpFdORtDMzFJnrktW5hhe6UScbiS9inicP01KWR7M=
 github.com/xtaci/smux v1.2.9/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
+github.com/xtaci/smux v1.2.10 h1:DQiH08XfO+33X7l5XOGV5urQHrgK8PRFWYxT/z9Hrnw=
+github.com/xtaci/smux v1.2.10/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576 h1:aUX/1G2gFSs4AsJJg2cL3HuoRhCSCz733FE5GUSuaT4=
 golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@@ -66,6 +73,8 @@ golang.org/x/crypto v0.0.0-20190418165655-df01cb2cc480 h1:O5YqonU5IWby+w98jVUG9h
 golang.org/x/crypto v0.0.0-20190418165655-df01cb2cc480/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20190422183909-d864b10871cd h1:sMHc2rZHuzQmrbVoSpt9HgerkXPyIeCSO6k0zUMGfFk=
 golang.org/x/crypto v0.0.0-20190422183909-d864b10871cd/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190320064053-1272bf9dcd53 h1:kcXqo9vE6fsZY5X5Rd7R1l7fTgnWaDCVmln65REefiE=
 golang.org/x/net v0.0.0-20190320064053-1272bf9dcd53/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190324223953-e3b2ff56ed87 h1:yh5/K199RObPR6zqVBYf+AyJuweAqx+fOe9s3cekn1Y=
@@ -77,6 +86,11 @@ golang.org/x/net v0.0.0-20190415214537-1da14a5a36f2 h1:iC0Y6EDq+rhnAePxGvJs2kzUA
 golang.org/x/net v0.0.0-20190415214537-1da14a5a36f2/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190420063019-afa5a82059c6 h1:HdqqaWmYAUI7/dmByKKEw+yxDksGSo+9GjkUc9Zp34E=
 golang.org/x/net v0.0.0-20190420063019-afa5a82059c6/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190424024845-afe8014c977f h1:uALRiwYevCJtciRa4mKKFkrs5jY4F2OTf1D2sfi1swY=
+golang.org/x/net v0.0.0-20190424024845-afe8014c977f/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190424112056-4829fb13d2c6 h1:FP8hkuE6yUEaJnK7O2eTuejKWwW+Rhfj80dQ2JcKxCU=
+golang.org/x/net v0.0.0-20190424112056-4829fb13d2c6/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190321052220-f7bb7a8bee54/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190322080309-f49334f85ddc/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -88,4 +102,10 @@ golang.org/x/sys v0.0.0-20190415145633-3fd5a3612ccd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190416152802-12500544f89f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190419153524-e8e3143a4f4a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190426135247-a129542de9ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.1/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190424031103-cb2dda6eabdf/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190428024724-550556f78a90/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=

server/main.go

@@ -105,10 +105,18 @@ func handleClient(p1, p2 io.ReadWriteCloser, quiet bool) {
 	streamCopy := func(dst io.Writer, src io.Reader) chan struct{} {
 		die := make(chan struct{})
 		go func() {
-			buf := xmitBuf.Get().([]byte)
-			io.CopyBuffer(dst, src, buf)
-			xmitBuf.Put(buf)
-			close(die)
+			if wt, ok := src.(io.WriterTo); ok {
+				wt.WriteTo(dst)
+				close(die)
+			} else if rt, ok := dst.(io.ReaderFrom); ok {
+				rt.ReadFrom(src)
+				close(die)
+			} else {
+				buf := xmitBuf.Get().([]byte)
+				io.CopyBuffer(dst, src, buf)
+				xmitBuf.Put(buf)
+				close(die)
+			}
 		}()
 		return die
 	}