Add Benchmark functions

Add benchmark for normal and DNSSEC lookup. We can probably shave quite
a lot of these, but first lets actually get to something that is
serving.

.travis.yml

@@ -4,4 +4,4 @@ go:
   - 1.5
   - 1.6
 script:
-  - go test -race -bench=./... ./...
+  - go test -race -bench=. ./...

middleware/file/dnssec_test.go

@@ -156,6 +156,38 @@ func TestLookupDNSSEC(t *testing.T) {
 	}
 }
 
+func BenchmarkLookupDNSSEC(b *testing.B) {
+	zone, err := Parse(strings.NewReader(dbMiekNL_signed), testzone, "stdin")
+	if err != nil {
+		return
+	}
+
+	fm := File{Next: coretest.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{testzone: zone}, Names: []string{testzone}}}
+	ctx := context.TODO()
+	rec := middleware.NewResponseRecorder(&middleware.TestResponseWriter{})
+
+	tc := coretest.Case{
+		Qname: "b.miek.nl.", Qtype: dns.TypeA, Do: true,
+		Rcode: dns.RcodeNameError,
+		Ns: []dns.RR{
+			coretest.NSEC("archive.miek.nl.	14400	IN	NSEC	go.dns.miek.nl. CNAME RRSIG NSEC"),
+			coretest.RRSIG("archive.miek.nl.	14400	IN	RRSIG	NSEC 8 3 14400 20160426031301 20160327031301 12051 miek.nl. jEpx8lcp4do5fWXg="),
+			coretest.NSEC("miek.nl.	14400	IN	NSEC	a.miek.nl. A NS SOA MX AAAA RRSIG NSEC DNSKEY"),
+			coretest.RRSIG("miek.nl.	14400	IN	RRSIG	NSEC 8 2 14400 20160426031301 20160327031301 12051 miek.nl. mFfc3r/9PSC1H6oSpdC"),
+			coretest.RRSIG("miek.nl.	1800	IN	RRSIG	SOA 8 2 1800 20160426031301 20160327031301 12051 miek.nl. FIrzy07acBbtyQczy1dc="),
+			coretest.SOA("miek.nl.	1800	IN	SOA	linode.atoom.net. miek.miek.nl. 1282630057 14400 3600 604800 14400"),
+		},
+	}
+
+	m := tc.Msg()
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		fm.ServeDNS(ctx, rec, m)
+	}
+}
+
 const dbMiekNL_signed = `
 ; File written on Sun Mar 27 04:13:01 2016
 ; dnssec_signzone version 9.10.3-P4-Ubuntu

middleware/file/lookup_test.go

@@ -13,6 +13,16 @@ import (
 )
 
 var dnsTestCases = []coretest.Case{
+	{
+		Qname: "www.miek.nl.", Qtype: dns.TypeA,
+		Answer: []dns.RR{
+			coretest.CNAME("www.miek.nl.	1800	IN	CNAME	a.miek.nl."),
+		},
+
+		Extra: []dns.RR{
+			coretest.A("a.miek.nl.	1800	IN	A	139.162.196.78"),
+		},
+	},
 	{
 		Qname: "miek.nl.", Qtype: dns.TypeSOA,
 		Answer: []dns.RR{
@@ -35,16 +45,6 @@ var dnsTestCases = []coretest.Case{
 			coretest.MX("miek.nl.	1800	IN	MX	5 alt2.aspmx.l.google.com."),
 		},
 	},
-	{
-		Qname: "www.miek.nl.", Qtype: dns.TypeA,
-		Answer: []dns.RR{
-			coretest.CNAME("www.miek.nl.	1800	IN	CNAME	a.miek.nl."),
-		},
-
-		Extra: []dns.RR{
-			coretest.A("a.miek.nl.	1800	IN	A	139.162.196.78"),
-		},
-	},
 	{
 		Qname: "a.miek.nl.", Qtype: dns.TypeSRV,
 		Ns: []dns.RR{
@@ -124,6 +124,36 @@ func TestLookup(t *testing.T) {
 	}
 }
 
+func BenchmarkLookup(b *testing.B) {
+	zone, err := Parse(strings.NewReader(dbMiekNL), testzone, "stdin")
+	if err != nil {
+		return
+	}
+
+	fm := File{Next: coretest.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{testzone: zone}, Names: []string{testzone}}}
+	ctx := context.TODO()
+	rec := middleware.NewResponseRecorder(&middleware.TestResponseWriter{})
+
+	tc := coretest.Case{
+		Qname: "www.miek.nl.", Qtype: dns.TypeA,
+		Answer: []dns.RR{
+			coretest.CNAME("www.miek.nl.	1800	IN	CNAME	a.miek.nl."),
+		},
+
+		Extra: []dns.RR{
+			coretest.A("a.miek.nl.	1800	IN	A	139.162.196.78"),
+		},
+	}
+
+	m := tc.Msg()
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		fm.ServeDNS(ctx, rec, m)
+	}
+}
+
 const dbMiekNL = `
 $TTL    30M
 $ORIGIN miek.nl.