1 files changed, 197 insertions, 0 deletions
diff --git a/pkg/specgen/generate/ports_bench_test.go b/pkg/specgen/generate/ports_bench_test.go
new file mode 100644
index 000000000..06f02acda
--- /dev/null
+++ b/pkg/specgen/generate/ports_bench_test.go
@@ -0,0 +1,197 @@
+package generate
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/containers/podman/v3/libpod/network/types"
+)
+
+func benchmarkParsePortMapping(b *testing.B, ports []types.PortMapping) {
+	for n := 0; n < b.N; n++ {
+		ParsePortMapping(ports, nil)
+	}
+}
+
+func BenchmarkParsePortMappingNoPorts(b *testing.B) {
+	benchmarkParsePortMapping(b, nil)
+}
+
+func BenchmarkParsePortMapping1(b *testing.B) {
+	benchmarkParsePortMapping(b, []types.PortMapping{
+		{
+			HostPort:      8080,
+			ContainerPort: 80,
+			Protocol:      "tcp",
+		},
+	})
+}
+
+func BenchmarkParsePortMapping100(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 100)
+	for i := uint16(8080); i < 8180; i++ {
+		ports = append(ports, types.PortMapping{
+			HostPort:      i,
+			ContainerPort: i,
+			Protocol:      "tcp",
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMapping1k(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 1000)
+	for i := uint16(8080); i < 9080; i++ {
+		ports = append(ports, types.PortMapping{
+			HostPort:      i,
+			ContainerPort: i,
+			Protocol:      "tcp",
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMapping10k(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 30000)
+	for i := uint16(8080); i < 18080; i++ {
+		ports = append(ports, types.PortMapping{
+			HostPort:      i,
+			ContainerPort: i,
+			Protocol:      "tcp",
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMapping1m(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 1000000)
+	for j := 0; j < 20; j++ {
+		for i := uint16(1); i <= 50000; i++ {
+			ports = append(ports, types.PortMapping{
+				HostPort:      i,
+				ContainerPort: i,
+				Protocol:      "tcp",
+				HostIP:        fmt.Sprintf("192.168.1.%d", j),
+			})
+		}
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMappingReverse100(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 100)
+	for i := uint16(8180); i > 8080; i-- {
+		ports = append(ports, types.PortMapping{
+			HostPort:      i,
+			ContainerPort: i,
+			Protocol:      "tcp",
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMappingReverse1k(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 1000)
+	for i := uint16(9080); i > 8080; i-- {
+		ports = append(ports, types.PortMapping{
+			HostPort:      i,
+			ContainerPort: i,
+			Protocol:      "tcp",
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMappingReverse10k(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 30000)
+	for i := uint16(18080); i > 8080; i-- {
+		ports = append(ports, types.PortMapping{
+			HostPort:      i,
+			ContainerPort: i,
+			Protocol:      "tcp",
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMappingReverse1m(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 1000000)
+	for j := 0; j < 20; j++ {
+		for i := uint16(50000); i > 0; i-- {
+			ports = append(ports, types.PortMapping{
+				HostPort:      i,
+				ContainerPort: i,
+				Protocol:      "tcp",
+				HostIP:        fmt.Sprintf("192.168.1.%d", j),
+			})
+		}
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}
+
+func BenchmarkParsePortMappingRange1(b *testing.B) {
+	benchmarkParsePortMapping(b, []types.PortMapping{
+		{
+			HostPort:      8080,
+			ContainerPort: 80,
+			Protocol:      "tcp",
+			Range:         1,
+		},
+	})
+}
+
+func BenchmarkParsePortMappingRange100(b *testing.B) {
+	benchmarkParsePortMapping(b, []types.PortMapping{
+		{
+			HostPort:      8080,
+			ContainerPort: 80,
+			Protocol:      "tcp",
+			Range:         100,
+		},
+	})
+}
+
+func BenchmarkParsePortMappingRange1k(b *testing.B) {
+	benchmarkParsePortMapping(b, []types.PortMapping{
+		{
+			HostPort:      8080,
+			ContainerPort: 80,
+			Protocol:      "tcp",
+			Range:         1000,
+		},
+	})
+}
+
+func BenchmarkParsePortMappingRange10k(b *testing.B) {
+	benchmarkParsePortMapping(b, []types.PortMapping{
+		{
+			HostPort:      8080,
+			ContainerPort: 80,
+			Protocol:      "tcp",
+			Range:         10000,
+		},
+	})
+}
+
+func BenchmarkParsePortMappingRange1m(b *testing.B) {
+	ports := make([]types.PortMapping, 0, 1000000)
+	for j := 0; j < 20; j++ {
+		ports = append(ports, types.PortMapping{
+			HostPort:      1,
+			ContainerPort: 1,
+			Protocol:      "tcp",
+			Range:         50000,
+			HostIP:        fmt.Sprintf("192.168.1.%d", j),
+		})
+	}
+	b.ResetTimer()
+	benchmarkParsePortMapping(b, ports)
+}