Files
quic-go/benchmark_test.go
Marten Seemann ce2333acd6 fix flaky benchmark test on CIs
The server now waits until the client has completed the handshake. This
way, we should avoid sending too many undecryptable packets.
2017-07-25 08:39:32 +07:00

81 lines
2.3 KiB
Go

package quic
import (
"bytes"
"crypto/tls"
"fmt"
"io"
"math/rand"
"net"
"time"
"github.com/lucas-clemente/quic-go/protocol"
"github.com/lucas-clemente/quic-go/testdata"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Benchmarks", func() {
dataLen := 50 /* MB */ * (1 << 20)
data := make([]byte, dataLen)
rand.Seed(time.Now().UnixNano())
for i := range protocol.SupportedVersions {
version := protocol.SupportedVersions[i]
Context(fmt.Sprintf("with version %d", version), func() {
Measure("transferring a file", func(b Benchmarker) {
rand.Read(data) // no need to check for an error. math.Rand.Read never errors
var ln Listener
serverAddr := make(chan net.Addr)
handshakeChan := make(chan struct{})
// start the server
go func() {
defer GinkgoRecover()
var err error
ln, err = ListenAddr("localhost:0", testdata.GetTLSConfig(), nil)
Expect(err).ToNot(HaveOccurred())
serverAddr <- ln.Addr()
sess, err := ln.Accept()
Expect(err).ToNot(HaveOccurred())
// wait for the client to complete the handshake before sending the data
// this should not be necessary, but due to timing issues on the CIs, this is necessary to avoid sending too many undecryptable packets
<-handshakeChan
str, err := sess.OpenStream()
Expect(err).ToNot(HaveOccurred())
_, err = str.Write(data)
Expect(err).ToNot(HaveOccurred())
err = str.Close()
Expect(err).ToNot(HaveOccurred())
}()
// start the client
addr := <-serverAddr
sess, err := DialAddr(addr.String(), &tls.Config{InsecureSkipVerify: true}, nil)
Expect(err).ToNot(HaveOccurred())
close(handshakeChan)
str, err := sess.AcceptStream()
Expect(err).ToNot(HaveOccurred())
buf := &bytes.Buffer{}
// measure the time it takes to download the dataLen bytes
// note we're measuring the time for the transfer, i.e. excluding the handshake
runtime := b.Time("transfer time", func() {
_, err := io.Copy(buf, str)
Expect(err).NotTo(HaveOccurred())
})
// this is *a lot* faster than Expect(buf.Bytes()).To(Equal(data))
Expect(bytes.Equal(buf.Bytes(), data)).To(BeTrue())
b.RecordValue("transfer rate [MB/s]", float64(dataLen)/1e6/runtime.Seconds())
ln.Close()
sess.Close(nil)
}, 6)
})
}
})