package dns
import (
"fmt"
"net"
"testing"
)
func BenchmarkMsgLength(b *testing.B) {
b.StopTimer()
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
msg.Compress = true
return msg
}
name1 := "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
msg := makeMsg(name1, []RR{rrMx, rrMx}, nil, nil)
b.StartTimer()
for i := 0; i < b.N; i++ {
msg.Len()
}
}
func BenchmarkMsgLengthNoCompression(b *testing.B) {
b.StopTimer()
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
return msg
}
name1 := "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
msg := makeMsg(name1, []RR{rrMx, rrMx}, nil, nil)
b.StartTimer()
for i := 0; i < b.N; i++ {
msg.Len()
}
}
func BenchmarkMsgLengthPack(b *testing.B) {
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
msg.Compress = true
return msg
}
name1 := "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
msg := makeMsg(name1, []RR{rrMx, rrMx}, nil, nil)
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = msg.Pack()
}
}
func BenchmarkMsgLengthMassive(b *testing.B) {
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
msg.Compress = true
return msg
}
const name1 = "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
answer := []RR{rrMx, rrMx}
for i := 0; i < 128; i++ {
rrA := testRR(fmt.Sprintf("example%03d.something%03delse.org. 2311 IN A 127.0.0.1", i/32, i%32))
answer = append(answer, rrA)
}
answer = append(answer, rrMx, rrMx)
msg := makeMsg(name1, answer, nil, nil)
b.ResetTimer()
for i := 0; i < b.N; i++ {
msg.Len()
}
}
func BenchmarkMsgLengthOnlyQuestion(b *testing.B) {
msg := new(Msg)
msg.SetQuestion(Fqdn("12345678901234567890123456789012345.12345678.123."), TypeANY)
msg.Compress = true
b.ResetTimer()
for i := 0; i < b.N; i++ {
msg.Len()
}
}
func BenchmarkMsgLengthEscapedName(b *testing.B) {
msg := new(Msg)
msg.SetQuestion(`\1\2\3\4\5\6\7\8\9\0\1\2\3\4\5\6\7\8\9\0\1\2\3\4\5\6\7\8\9\0\1\2\3\4\5.\1\2\3\4\5\6\7\8.\1\2\3.`, TypeANY)
b.ResetTimer()
for i := 0; i < b.N; i++ {
msg.Len()
}
}
func BenchmarkPackDomainName(b *testing.B) {
name1 := "12345678901234567890123456789012345.12345678.123."
buf := make([]byte, len(name1)+1)
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = PackDomainName(name1, buf, 0, nil, false)
}
}
func BenchmarkUnpackDomainName(b *testing.B) {
name1 := "12345678901234567890123456789012345.12345678.123."
buf := make([]byte, len(name1)+1)
_, _ = PackDomainName(name1, buf, 0, nil, false)
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackDomainName(buf, 0)
}
}
func BenchmarkUnpackDomainNameUnprintable(b *testing.B) {
name1 := "\x02\x02\x02\x025\x02\x02\x02\x02.12345678.123."
buf := make([]byte, len(name1)+1)
_, _ = PackDomainName(name1, buf, 0, nil, false)
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackDomainName(buf, 0)
}
}
func BenchmarkUnpackDomainNameLongest(b *testing.B) {
buf := make([]byte, len(longestDomain)+1)
n, err := PackDomainName(longestDomain, buf, 0, nil, false)
if err != nil {
b.Fatal(err)
}
if n != maxDomainNameWireOctets {
b.Fatalf("name wrong size in wire format, expected %d, got %d", maxDomainNameWireOctets, n)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackDomainName(buf, 0)
}
}
func BenchmarkUnpackDomainNameLongestUnprintable(b *testing.B) {
buf := make([]byte, len(longestUnprintableDomain)+1)
n, err := PackDomainName(longestUnprintableDomain, buf, 0, nil, false)
if err != nil {
b.Fatal(err)
}
if n != maxDomainNameWireOctets {
b.Fatalf("name wrong size in wire format, expected %d, got %d", maxDomainNameWireOctets, n)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackDomainName(buf, 0)
}
}
func BenchmarkCopy(b *testing.B) {
b.ReportAllocs()
m := new(Msg)
m.SetQuestion("miek.nl.", TypeA)
rr := testRR("miek.nl. 2311 IN A 127.0.0.1")
m.Answer = []RR{rr}
rr = testRR("miek.nl. 2311 IN NS 127.0.0.1")
m.Ns = []RR{rr}
rr = testRR("miek.nl. 2311 IN A 127.0.0.1")
m.Extra = []RR{rr}
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.Copy()
}
}
func BenchmarkPackA(b *testing.B) {
a := &A{Hdr: RR_Header{Name: ".", Rrtype: TypeA, Class: ClassANY}, A: net.IPv4(127, 0, 0, 1)}
buf := make([]byte, Len(a))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = PackRR(a, buf, 0, nil, false)
}
}
func BenchmarkUnpackA(b *testing.B) {
a := &A{Hdr: RR_Header{Name: ".", Rrtype: TypeA, Class: ClassANY}, A: net.IPv4(127, 0, 0, 1)}
buf := make([]byte, Len(a))
PackRR(a, buf, 0, nil, false)
a = nil
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackRR(buf, 0)
}
}
func BenchmarkPackMX(b *testing.B) {
m := &MX{Hdr: RR_Header{Name: ".", Rrtype: TypeA, Class: ClassANY}, Mx: "mx.miek.nl."}
buf := make([]byte, Len(m))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = PackRR(m, buf, 0, nil, false)
}
}
func BenchmarkUnpackMX(b *testing.B) {
m := &MX{Hdr: RR_Header{Name: ".", Rrtype: TypeA, Class: ClassANY}, Mx: "mx.miek.nl."}
buf := make([]byte, Len(m))
PackRR(m, buf, 0, nil, false)
m = nil
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackRR(buf, 0)
}
}
func BenchmarkPackAAAAA(b *testing.B) {
aaaa := testRR(". IN AAAA ::1")
buf := make([]byte, Len(aaaa))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = PackRR(aaaa, buf, 0, nil, false)
}
}
func BenchmarkUnpackAAAA(b *testing.B) {
aaaa := testRR(". IN AAAA ::1")
buf := make([]byte, Len(aaaa))
PackRR(aaaa, buf, 0, nil, false)
aaaa = nil
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = UnpackRR(buf, 0)
}
}
func BenchmarkPackMsg(b *testing.B) {
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
msg.Compress = true
return msg
}
name1 := "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
msg := makeMsg(name1, []RR{rrMx, rrMx}, nil, nil)
buf := make([]byte, 512)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = msg.PackBuffer(buf)
}
}
func BenchmarkPackMsgMassive(b *testing.B) {
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
msg.Compress = true
return msg
}
const name1 = "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
answer := []RR{rrMx, rrMx}
for i := 0; i < 128; i++ {
rrA := testRR(fmt.Sprintf("example%03d.something%03delse.org. 2311 IN A 127.0.0.1", i/32, i%32))
answer = append(answer, rrA)
}
answer = append(answer, rrMx, rrMx)
msg := makeMsg(name1, answer, nil, nil)
buf := make([]byte, 512)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = msg.PackBuffer(buf)
}
}
func BenchmarkPackMsgOnlyQuestion(b *testing.B) {
msg := new(Msg)
msg.SetQuestion(Fqdn("12345678901234567890123456789012345.12345678.123."), TypeANY)
msg.Compress = true
buf := make([]byte, 512)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = msg.PackBuffer(buf)
}
}
func BenchmarkUnpackMsg(b *testing.B) {
makeMsg := func(question string, ans, ns, e []RR) *Msg {
msg := new(Msg)
msg.SetQuestion(Fqdn(question), TypeANY)
msg.Answer = append(msg.Answer, ans...)
msg.Ns = append(msg.Ns, ns...)
msg.Extra = append(msg.Extra, e...)
msg.Compress = true
return msg
}
name1 := "12345678901234567890123456789012345.12345678.123."
rrMx := testRR(name1 + " 3600 IN MX 10 " + name1)
msg := makeMsg(name1, []RR{rrMx, rrMx}, nil, nil)
msgBuf, _ := msg.Pack()
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_ = msg.Unpack(msgBuf)
}
}
func BenchmarkIdGeneration(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = id()
}
}
func BenchmarkReverseAddr(b *testing.B) {
b.Run("IP4", func(b *testing.B) {
for n := 0; n < b.N; n++ {
addr, err := ReverseAddr("192.0.2.1")
if err != nil {
b.Fatal(err)
}
if expect := "1.2.0.192.in-addr.arpa."; addr != expect {
b.Fatalf("invalid reverse address, expected %q, got %q", expect, addr)
}
}
})
b.Run("IP6", func(b *testing.B) {
for n := 0; n < b.N; n++ {
addr, err := ReverseAddr("2001:db8::68")
if err != nil {
b.Fatal(err)
}
if expect := "8.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa."; addr != expect {
b.Fatalf("invalid reverse address, expected %q, got %q", expect, addr)
}
}
})
}