From 3768d8a9a3718d982a38f760e5bde45cc786e747 Mon Sep 17 00:00:00 2001
From: Shyam Jeedigunta <shyamjvs@google.com>
Date: Mon, 18 Jun 2018 14:59:45 +0200
Subject: [PATCH 1/2] Half the no. of endpoints in load test

---
 test/e2e/scalability/load.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/test/e2e/scalability/load.go b/test/e2e/scalability/load.go
index 5dadeed360f..7cfe4b68e48 100644
--- a/test/e2e/scalability/load.go
+++ b/test/e2e/scalability/load.go
@@ -535,8 +535,11 @@ func GenerateConfigsForGroup(
 			MemRequest:     26214400, // 25MB
 			SecretNames:    secretNames,
 			ConfigMapNames: configMapNames,
-			// Define a label to group every 2 RCs into one service.
-			Labels: map[string]string{svcLabelKey: groupName + "-" + strconv.Itoa((i+1)/2)},
+		}
+
+		// Add a label to alternate RCs, to include only half of them in services.
+		if i%2 == 0 {
+			baseConfig.Labels = map[string]string{svcLabelKey: groupName + "-" + strconv.Itoa(i/2)}
 		}
 
 		if kind == randomKind {

From a01dea5df04664df808495558408df6b5b173ed6 Mon Sep 17 00:00:00 2001
From: Shyam Jeedigunta <shyamjvs@google.com>
Date: Mon, 18 Jun 2018 15:46:14 +0200
Subject: [PATCH 2/2] Make no. of services in load test configurable

---
 test/e2e/scalability/load.go | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/test/e2e/scalability/load.go b/test/e2e/scalability/load.go
index 7cfe4b68e48..8447a126b5c 100644
--- a/test/e2e/scalability/load.go
+++ b/test/e2e/scalability/load.go
@@ -492,6 +492,17 @@ func GenerateConfigsForGroup(
 	secretConfigs := make([]*testutils.SecretConfig, 0, count*secretsPerPod)
 	configMapConfigs := make([]*testutils.ConfigMapConfig, 0, count*configMapsPerPod)
 	savedKind := kind
+
+	// We assume by default that every RC is part of its own service.
+	// However, you can override it using SERVICE_TO_RC_RATIO env var.
+	serviceToRCRatio := 1.0
+	if serviceToRCRatioEnv := os.Getenv("SERVICE_TO_RC_RATIO"); serviceToRCRatioEnv != "" {
+		if value, err := strconv.ParseFloat(serviceToRCRatioEnv, 64); err == nil {
+			serviceToRCRatio = value
+		}
+	}
+	numServices := int(float64(count) * serviceToRCRatio)
+
 	for i := 1; i <= count; i++ {
 		kind = savedKind
 		namespace := nss[i%len(nss)].Name
@@ -537,9 +548,9 @@ func GenerateConfigsForGroup(
 			ConfigMapNames: configMapNames,
 		}
 
-		// Add a label to alternate RCs, to include only half of them in services.
-		if i%2 == 0 {
-			baseConfig.Labels = map[string]string{svcLabelKey: groupName + "-" + strconv.Itoa(i/2)}
+		// Add a label to first 'numServices' RCs (to include them in services).
+		if i <= numServices {
+			baseConfig.Labels = map[string]string{svcLabelKey: groupName + "-" + strconv.Itoa(i)}
 		}
 
 		if kind == randomKind {