diff --git a/.buildkite/pipeline.yaml b/.buildkite/pipeline.yaml
index b778dd258..af12a47f0 100644
--- a/.buildkite/pipeline.yaml
+++ b/.buildkite/pipeline.yaml
@@ -634,7 +634,7 @@ steps:
     command: make -i benchmark-platforms BENCHMARKS_FILTER="Continuous" BENCHMARKS_SUITE=httpd BENCHMARKS_TARGETS=test/benchmarks/network:httpd_test
   - <<: *benchmarks
     label: ":piedpiper: iperf benchmarks"
-    command: make -i benchmark-platforms BENCHMARKS_SUITE=iperf BENCHMARKS_TARGETS=test/benchmarks/network:iperf_test BENCHMARKS_FILTER=BenchmarkIperf$
+    command: make -i benchmark-platforms BENCHMARKS_SUITE=iperf BENCHMARKS_TARGETS=test/benchmarks/network:iperf_test BENCHMARKS_FILTER=BenchmarkIperfOneConnection
   - <<: *benchmarks
     label: ":nginx: nginx benchmarks"
     command: make -i benchmark-platforms BENCHMARKS_FILTER="Continuous" BENCHMARKS_SUITE=nginx BENCHMARKS_TARGETS=test/benchmarks/network:nginx_test
diff --git a/test/benchmarks/network/iperf_test.go b/test/benchmarks/network/iperf_test.go
index 0db1178df..3e4906873 100644
--- a/test/benchmarks/network/iperf_test.go
+++ b/test/benchmarks/network/iperf_test.go
@@ -26,7 +26,7 @@ import (
 	"gvisor.dev/gvisor/test/benchmarks/tools"
 )
 
-func BenchmarkIperf(b *testing.B) {
+func BenchmarkIperfOneConnection(b *testing.B) {
 	clientMachine, err := harness.GetMachine()
 	if err != nil {
 		b.Fatalf("failed to get machine: %v", err)
@@ -106,7 +106,7 @@ func BenchmarkIperf(b *testing.B) {
 	}
 }
 
-func BenchmarkIperfParameterized(b *testing.B) {
+func BenchmarkIperfManyConnections(b *testing.B) {
 	clientMachine, err := harness.GetMachine()
 	if err != nil {
 		b.Fatalf("failed to get machine: %v", err)
@@ -131,85 +131,37 @@ func BenchmarkIperfParameterized(b *testing.B) {
 		// server.
 		{
 			name:       "Upload",
-			length:     4,
-			parallel:   1,
+			parallel:   4,
 			clientFunc: clientMachine.GetContainer,
 			serverFunc: serverMachine.GetNativeContainer,
 		},
 		{
-			name:       "Upload",
-			length:     64,
-			parallel:   1,
-			clientFunc: clientMachine.GetContainer,
-			serverFunc: serverMachine.GetNativeContainer,
+			name:       "Download",
+			parallel:   4,
+			clientFunc: clientMachine.GetNativeContainer,
+			serverFunc: serverMachine.GetContainer,
 		},
 		{
 			name:       "Upload",
-			length:     1024,
-			parallel:   1,
-			clientFunc: clientMachine.GetContainer,
-			serverFunc: serverMachine.GetNativeContainer,
-		},
-		{
-			name:       "Upload",
-			length:     4,
-			parallel:   16,
-			clientFunc: clientMachine.GetContainer,
-			serverFunc: serverMachine.GetNativeContainer,
-		},
-		{
-			name:       "Upload",
-			length:     64,
-			parallel:   16,
-			clientFunc: clientMachine.GetContainer,
-			serverFunc: serverMachine.GetNativeContainer,
-		},
-		{
-			name:       "Upload",
-			length:     1024,
 			parallel:   16,
 			clientFunc: clientMachine.GetContainer,
 			serverFunc: serverMachine.GetNativeContainer,
 		},
 		{
 			name:       "Download",
-			length:     4,
-			parallel:   1,
-			clientFunc: clientMachine.GetNativeContainer,
-			serverFunc: serverMachine.GetContainer,
-		},
-		{
-			name:       "Download",
-			length:     64,
-			parallel:   1,
-			clientFunc: clientMachine.GetNativeContainer,
-			serverFunc: serverMachine.GetContainer,
-		},
-		{
-			name:       "Download",
-			length:     1024,
-			parallel:   1,
-			clientFunc: clientMachine.GetNativeContainer,
-			serverFunc: serverMachine.GetContainer,
-		},
-		{
-			name:       "Download",
-			length:     4,
 			parallel:   16,
 			clientFunc: clientMachine.GetNativeContainer,
 			serverFunc: serverMachine.GetContainer,
 		},
 		{
-			name:       "Download",
-			length:     64,
-			parallel:   16,
-			clientFunc: clientMachine.GetNativeContainer,
-			serverFunc: serverMachine.GetContainer,
+			name:       "Upload",
+			parallel:   64,
+			clientFunc: clientMachine.GetContainer,
+			serverFunc: serverMachine.GetNativeContainer,
 		},
 		{
 			name:       "Download",
-			length:     1024,
-			parallel:   16,
+			parallel:   64,
 			clientFunc: clientMachine.GetNativeContainer,
 			serverFunc: serverMachine.GetContainer,
 		},
@@ -217,9 +169,6 @@ func BenchmarkIperfParameterized(b *testing.B) {
 		name, err := tools.ParametersToName(tools.Parameter{
 			Name:  "operation",
 			Value: bm.name,
-		}, tools.Parameter{
-			Name:  "length",
-			Value: fmt.Sprintf("%dK", bm.length),
 		}, tools.Parameter{
 			Name:  "parallel",
 			Value: fmt.Sprintf("%d", bm.parallel),
@@ -249,8 +198,7 @@ func BenchmarkIperfParameterized(b *testing.B) {
 			}
 
 			iperf := tools.Iperf{
-				Num:      b.N,       // KB for the client to send.
-				Length:   bm.length, // KB for length.
+				Num:      b.N, // KB for the client to send.
 				Parallel: bm.parallel,
 			}
 
diff --git a/test/benchmarks/tools/iperf.go b/test/benchmarks/tools/iperf.go
index 7f873f6b3..567ae4a43 100644
--- a/test/benchmarks/tools/iperf.go
+++ b/test/benchmarks/tools/iperf.go
@@ -24,21 +24,20 @@ import (
 // Iperf is for the client side of `iperf`.
 type Iperf struct {
 	Num      int // Number of bytes to send in KB.
-	Length   int // Length in KB.
 	Parallel int // Number of parallel threads.
 }
 
 // MakeCmd returns a iperf client command.
 func (i *Iperf) MakeCmd(host string, port int) []string {
 	cmd := []string{"iperf"}
-	cmd = append(cmd, "--format", "K")                    // Output in KBytes.
-	cmd = append(cmd, "--realtime")                       // Measured in realtime.
-	cmd = append(cmd, "--num", fmt.Sprintf("%dK", i.Num)) // Number of bytes to send in KB.
-	len := 128
-	if i.Length > 0 {
-		len = i.Length
+	cmd = append(cmd, "--format", "K") // Output in KBytes.
+	cmd = append(cmd, "--realtime")    // Measured in realtime.
+	cmd = append(cmd, "--len", "128K") // Length of data buffer per request.
+	n := i.Num
+	if i.Parallel > 0 {
+		n = i.Num / i.Parallel
 	}
-	cmd = append(cmd, "--len", fmt.Sprintf("%dK", len)) // Length in KB.
+	cmd = append(cmd, "--num", fmt.Sprintf("%dK", n)) // Number of requests to send.
 	cmd = append(cmd, "--client", host)
 	cmd = append(cmd, "--port", fmt.Sprintf("%d", port))
 	if i.Parallel > 0 {
@@ -55,7 +54,7 @@ func (i *Iperf) Report(b *testing.B, output string) {
 	if err != nil {
 		b.Fatalf("failed to parse bandwitdth from %s: %v", output, err)
 	}
-	b.SetBytes(int64(i.Length) * 1024) // Measure Bytes/sec for b.N, although below is iperf output.
+	b.SetBytes(128 * 1024) // Measure Bytes/sec for b.N, although below is iperf output.
 	ReportCustomMetric(b, bW*1024, "bandwidth" /*metric name*/, "bytes_per_second" /*unit*/)
 }