85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
|
// streaming-write-benchmark benchmarks the peformance of writing
|
||
|
|
// from /dev/zero on the client to /dev/null on the server via io.Copy.
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"flag"
|
||
|
|
"fmt"
|
||
|
|
"io"
|
||
|
|
"log"
|
||
|
|
"net"
|
||
|
|
"os"
|
||
|
|
"syscall"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"golang.org/x/crypto/ssh"
|
||
|
|
"golang.org/x/crypto/ssh/agent"
|
||
|
|
|
||
|
|
"github.com/pkg/sftp"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
USER = flag.String("user", os.Getenv("USER"), "ssh username")
|
||
|
|
HOST = flag.String("host", "localhost", "ssh server hostname")
|
||
|
|
PORT = flag.Int("port", 22, "ssh server port")
|
||
|
|
PASS = flag.String("pass", os.Getenv("SOCKSIE_SSH_PASSWORD"), "ssh password")
|
||
|
|
SIZE = flag.Int("s", 1<<15, "set max packet size")
|
||
|
|
)
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
flag.Parse()
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
var auths []ssh.AuthMethod
|
||
|
|
if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
|
||
|
|
auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))
|
||
|
|
|
||
|
|
}
|
||
|
|
if *PASS != "" {
|
||
|
|
auths = append(auths, ssh.Password(*PASS))
|
||
|
|
}
|
||
|
|
|
||
|
|
config := ssh.ClientConfig{
|
||
|
|
User: *USER,
|
||
|
|
Auth: auths,
|
||
|
|
}
|
||
|
|
addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
|
||
|
|
conn, err := ssh.Dial("tcp", addr, &config)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalf("unable to connect to [%s]: %v", addr, err)
|
||
|
|
}
|
||
|
|
defer conn.Close()
|
||
|
|
|
||
|
|
c, err := sftp.NewClient(conn, sftp.MaxPacket(*SIZE))
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalf("unable to start sftp subsytem: %v", err)
|
||
|
|
}
|
||
|
|
defer c.Close()
|
||
|
|
|
||
|
|
w, err := c.OpenFile("/dev/null", syscall.O_WRONLY)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
defer w.Close()
|
||
|
|
|
||
|
|
f, err := os.Open("/dev/zero")
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
defer f.Close()
|
||
|
|
|
||
|
|
const size int64 = 1e9
|
||
|
|
|
||
|
|
log.Printf("writing %v bytes", size)
|
||
|
|
t1 := time.Now()
|
||
|
|
n, err := io.Copy(w, io.LimitReader(f, size))
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
if n != size {
|
||
|
|
log.Fatalf("copy: expected %v bytes, got %d", size, n)
|
||
|
|
}
|
||
|
|
log.Printf("wrote %v bytes in %s", size, time.Since(t1))
|
||
|
|
}
|