diff --git a/README.md b/README.md
index d53dd0cb..16e25637 100644
--- a/README.md
+++ b/README.md
@@ -38,18 +38,17 @@ THIS IS WORKING IN PROGRESS (more accurate results coming soon...)
   - Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
   - Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode)
   - javac 1.8.0_111
-- etcd v3.1 (Go 1.7.3)
+- etcd v3.1 (Go 1.7.4)
 - Consul v0.7.1 (Go 1.7.3)
 
 
 <br><br>
 ##### Write 2M keys, 1000-client (etcd v3.1 100-conn), 8-byte key, 256-byte value
 
-<img src="https://storage.googleapis.com/dbtester-results/2016Q401-etcd-zk-consul/write-2M-keys/avg-latency-ms.svg" alt="2016Q401-etcd-zk-consul/write-2M-keys/avg-latency-ms">
+<img src="https://storage.googleapis.com/dbtester-results/2016Q402-etcd-zk-consul/write-2M-keys/avg-latency-ms.svg" alt="2016Q402-etcd-zk-consul/write-2M-keys/avg-latency-ms">
 
-<img src="https://storage.googleapis.com/dbtester-results/2016Q401-etcd-zk-consul/write-2M-keys/throughput.svg" alt="2016Q401-etcd-zk-consul/write-2M-keys/throughput">
+<img src="https://storage.googleapis.com/dbtester-results/2016Q402-etcd-zk-consul/write-2M-keys/throughput.svg" alt="2016Q402-etcd-zk-consul/write-2M-keys/throughput">
 
-<img src="https://storage.googleapis.com/dbtester-results/2016Q401-etcd-zk-consul/write-2M-keys/avg-cpu.svg" alt="2016Q401-etcd-zk-consul/write-2M-keys/avg-cpu">
-
-<img src="https://storage.googleapis.com/dbtester-results/2016Q401-etcd-zk-consul/write-2M-keys/avg-memory-mb.svg" alt="2016Q401-etcd-zk-consul/write-2M-keys/avg-memory-mb">
+<img src="https://storage.googleapis.com/dbtester-results/2016Q402-etcd-zk-consul/write-2M-keys/avg-cpu.svg" alt="2016Q402-etcd-zk-consul/write-2M-keys/avg-cpu">
 
+<img src="https://storage.googleapis.com/dbtester-results/2016Q402-etcd-zk-consul/write-2M-keys/avg-memory-mb.svg" alt="2016Q402-etcd-zk-consul/write-2M-keys/avg-memory-mb">
diff --git a/bench-configuration/read-2M-keys-linearizable/analyze.yaml b/bench-configuration/read-2M-keys-linearizable/analyze.yaml
index 0d2901be..c47c780c 100644
--- a/bench-configuration/read-2M-keys-linearizable/analyze.yaml
+++ b/bench-configuration/read-2M-keys-linearizable/analyze.yaml
@@ -3,11 +3,11 @@ titles:
 
 step1:
   - data_path_list:
-    - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.3-1-monitor.csv
-    - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.3-2-monitor.csv
-    - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.3-3-monitor.csv
-    data_benchmark_path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.3-timeseries.csv
-    output_path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.3-aggregated.csv
+    - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.4-1-monitor.csv
+    - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.4-2-monitor.csv
+    - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.4-3-monitor.csv
+    data_benchmark_path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.4-timeseries.csv
+    output_path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.4-aggregated.csv
 
   - data_path_list:
     - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/zk-v3.4.9-java8-1-monitor.csv
@@ -25,8 +25,8 @@ step1:
 
 step2:
   - data_list:
-      - path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.3-aggregated.csv
-        name: etcd-v3.1-go1.7.3
+      - path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/etcd-v3.1-go1.7.4-aggregated.csv
+        name: etcd-v3.1-go1.7.4
       - path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/zk-v3.4.9-java8-aggregated.csv
         name: zk-v3.4.9-java8
       - path: 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/consul-v0.7.1-go1.7.3-aggregated.csv
@@ -38,8 +38,8 @@ step3:
 
     plot_list:
     - lines:
-      - column: avg-latency-ms-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: avg-latency-ms-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: avg-latency-ms-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: avg-latency-ms-consul-v0.7.1-go1.7.3
@@ -51,8 +51,8 @@ step3:
         - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/avg-latency-ms.png
 
     - lines:
-      - column: throughput-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: throughput-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: throughput-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: throughput-consul-v0.7.1-go1.7.3
@@ -64,8 +64,8 @@ step3:
         - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/throughput.png
 
     - lines:
-      - column: avg-cpu-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: avg-cpu-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: avg-cpu-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: avg-cpu-consul-v0.7.1-go1.7.3
@@ -77,8 +77,8 @@ step3:
         - 2016Q402-etcd-zk-consul/read-2M-keys-linearizable/avg-cpu.png
 
     - lines:
-      - column: avg-memory-mb-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: avg-memory-mb-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: avg-memory-mb-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: avg-memory-mb-consul-v0.7.1-go1.7.3
@@ -100,7 +100,7 @@ step4:
       - Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
       - Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode)
       - javac 1.8.0_111
-    - etcd v3.1 (Go 1.7.3)
+    - etcd v3.1 (Go 1.7.4)
     - Consul v0.7.1 (Go 1.7.3)
 
   results:
diff --git a/bench-configuration/read-2M-keys-linearizable/etcd-v3.1.yaml b/bench-configuration/read-2M-keys-linearizable/etcd-v3.1.yaml
index e4280517..4c708435 100644
--- a/bench-configuration/read-2M-keys-linearizable/etcd-v3.1.yaml
+++ b/bench-configuration/read-2M-keys-linearizable/etcd-v3.1.yaml
@@ -1,5 +1,5 @@
 database: etcdv3
-test_name: etcd-v3.1-go1.7.3
+test_name: etcd-v3.1-go1.7.4
 
 google_cloud_project_name: etcd-development
 google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
diff --git a/bench-configuration/read-2M-keys-serializable/analyze.yaml b/bench-configuration/read-2M-keys-serializable/analyze.yaml
index 39f9d77d..4d273b96 100644
--- a/bench-configuration/read-2M-keys-serializable/analyze.yaml
+++ b/bench-configuration/read-2M-keys-serializable/analyze.yaml
@@ -3,11 +3,11 @@ titles:
 
 step1:
   - data_path_list:
-    - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.3-1-monitor.csv
-    - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.3-2-monitor.csv
-    - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.3-3-monitor.csv
-    data_benchmark_path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.3-timeseries.csv
-    output_path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.3-aggregated.csv
+    - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.4-1-monitor.csv
+    - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.4-2-monitor.csv
+    - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.4-3-monitor.csv
+    data_benchmark_path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.4-timeseries.csv
+    output_path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.4-aggregated.csv
 
   - data_path_list:
     - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/zk-v3.4.9-java8-1-monitor.csv
@@ -25,8 +25,8 @@ step1:
 
 step2:
   - data_list:
-      - path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.3-aggregated.csv
-        name: etcd-v3.1-go1.7.3
+      - path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/etcd-v3.1-go1.7.4-aggregated.csv
+        name: etcd-v3.1-go1.7.4
       - path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/zk-v3.4.9-java8-aggregated.csv
         name: zk-v3.4.9-java8
       - path: 2016Q402-etcd-zk-consul/read-2M-keys-serializable/consul-v0.7.1-go1.7.3-aggregated.csv
@@ -38,8 +38,8 @@ step3:
 
     plot_list:
     - lines:
-      - column: avg-latency-ms-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: avg-latency-ms-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: avg-latency-ms-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: avg-latency-ms-consul-v0.7.1-go1.7.3
@@ -51,8 +51,8 @@ step3:
         - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/avg-latency-ms.png
 
     - lines:
-      - column: throughput-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: throughput-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: throughput-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: throughput-consul-v0.7.1-go1.7.3
@@ -64,8 +64,8 @@ step3:
         - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/throughput.png
 
     - lines:
-      - column: avg-cpu-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: avg-cpu-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: avg-cpu-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: avg-cpu-consul-v0.7.1-go1.7.3
@@ -77,8 +77,8 @@ step3:
         - 2016Q402-etcd-zk-consul/read-2M-keys-serializable/avg-cpu.png
 
     - lines:
-      - column: avg-memory-mb-etcd-v3.1-go1.7.3
-        legend: etcd v3.1 (Go 1.7.3)
+      - column: avg-memory-mb-etcd-v3.1-go1.7.4
+        legend: etcd v3.1 (Go 1.7.4)
       - column: avg-memory-mb-zk-v3.4.9-java8
         legend: Zookeeper v3.4.9 (Java 8)
       - column: avg-memory-mb-consul-v0.7.1-go1.7.3
@@ -100,7 +100,7 @@ step4:
       - Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
       - Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode)
       - javac 1.8.0_111
-    - etcd v3.1 (Go 1.7.3)
+    - etcd v3.1 (Go 1.7.4)
     - Consul v0.7.1 (Go 1.7.3)
 
   results:
diff --git a/bench-configuration/read-2M-keys-serializable/etcd-v3.1.yaml b/bench-configuration/read-2M-keys-serializable/etcd-v3.1.yaml
index a815939e..9c2fa868 100644
--- a/bench-configuration/read-2M-keys-serializable/etcd-v3.1.yaml
+++ b/bench-configuration/read-2M-keys-serializable/etcd-v3.1.yaml
@@ -1,5 +1,5 @@
 database: etcdv3
-test_name: etcd-v3.1-go1.7.3
+test_name: etcd-v3.1-go1.7.4
 
 google_cloud_project_name: etcd-development
 google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
diff --git a/bench-configuration/read-oneshot-500K-keys-linearizable/consul-v0.7.1.yaml b/bench-configuration/read-oneshot-500K-keys-linearizable/consul-v0.7.1.yaml
deleted file mode 100644
index 7b41216c..00000000
--- a/bench-configuration/read-oneshot-500K-keys-linearizable/consul-v0.7.1.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-database: consul
-test_name: consul-v0.7.1-go1.7.3
-
-google_cloud_project_name: etcd-development
-google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
-google_cloud_storage_bucket_name: dbtester-results
-google_cloud_storage_sub_directory: 2016Q402-etcd-zk-consul/read-oneshot-500K-keys-linearizable
-
-peer_ips:
-    - 10.240.0.30
-    - 10.240.0.31
-    - 10.240.0.35
-
-agent_port: 3500
-database_port: 8500
-
-result_path_time_series: timeseries.csv
-result_path_log: result.log
-
-# start database by sending RPC calls to agents
-step1:
-    skip_start_database: false
-    zookeeper_max_client_connections: 5000
-    zookeeper_snap_count: 100000
-
-# start benchmark
-step2:
-    skip_stress_database: false
-    bench_type: read-oneshot
-    stale_read: false
-    connections: 1000
-    clients: 1000
-    key_size: 8
-    value_size: 256
-    total_requests: 500000
-    request_interval_ms: 0
-    etcdv3_compaction_cycle: 0
-
-# after benchmark
-step3:
-    action: stop
diff --git a/bench-configuration/read-oneshot-500K-keys-linearizable/etcd-v3.1.yaml b/bench-configuration/read-oneshot-500K-keys-linearizable/etcd-v3.1.yaml
deleted file mode 100644
index caf4ebcf..00000000
--- a/bench-configuration/read-oneshot-500K-keys-linearizable/etcd-v3.1.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-database: etcdv3
-test_name: etcd-v3.1-go1.7.3
-
-google_cloud_project_name: etcd-development
-google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
-google_cloud_storage_bucket_name: dbtester-results
-google_cloud_storage_sub_directory: 2016Q402-etcd-zk-consul/read-oneshot-500K-keys-linearizable
-
-peer_ips:
-    - 10.240.0.20
-    - 10.240.0.21
-    - 10.240.0.22
-
-agent_port: 3500
-database_port: 2379
-
-result_path_time_series: timeseries.csv
-result_path_log: result.log
-
-# start database by sending RPC calls to agents
-step1:
-    skip_start_database: false
-    zookeeper_max_client_connections: 5000
-    zookeeper_snap_count: 100000
-
-# start benchmark
-step2:
-    skip_stress_database: false
-    bench_type: read-oneshot
-    stale_read: true
-    connections: 1000
-    clients: 1000
-    key_size: 8
-    value_size: 256
-    total_requests: 500000
-    request_interval_ms: 0
-    etcdv3_compaction_cycle: 0
-
-# after benchmark
-step3:
-    action: stop
diff --git a/bench-configuration/read-oneshot-500K-keys-linearizable/zk-v3.4.9.yaml b/bench-configuration/read-oneshot-500K-keys-linearizable/zk-v3.4.9.yaml
deleted file mode 100644
index b9c440a0..00000000
--- a/bench-configuration/read-oneshot-500K-keys-linearizable/zk-v3.4.9.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-database: zk
-test_name: zk-v3.4.9-java8
-
-google_cloud_project_name: etcd-development
-google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
-google_cloud_storage_bucket_name: dbtester-results
-google_cloud_storage_sub_directory: 2016Q402-etcd-zk-consul/read-oneshot-500K-keys-linearizable
-
-peer_ips:
-    - 10.240.0.25
-    - 10.240.0.27
-    - 10.240.0.28
-
-agent_port: 3500
-database_port: 2181
-
-result_path_time_series: timeseries.csv
-result_path_log: result.log
-
-# start database by sending RPC calls to agents
-step1:
-    skip_start_database: false
-    zookeeper_max_client_connections: 5000
-    zookeeper_snap_count: 100000
-
-# start benchmark
-step2:
-    skip_stress_database: false
-    bench_type: read-oneshot
-    stale_read: true
-    connections: 1000
-    clients: 1000
-    key_size: 8
-    value_size: 256
-    total_requests: 500000
-    request_interval_ms: 0
-    etcdv3_compaction_cycle: 0
-
-# after benchmark
-step3:
-    action: stop
diff --git a/bench-configuration/read-oneshot-500K-keys-serializable/consul-v0.7.1.yaml b/bench-configuration/read-oneshot-500K-keys-serializable/consul-v0.7.1.yaml
deleted file mode 100644
index 861ccc96..00000000
--- a/bench-configuration/read-oneshot-500K-keys-serializable/consul-v0.7.1.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-database: consul
-test_name: consul-v0.7.1-go1.7.3
-
-google_cloud_project_name: etcd-development
-google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
-google_cloud_storage_bucket_name: dbtester-results
-google_cloud_storage_sub_directory: 2016Q402-etcd-zk-consul/read-oneshot-500K-keys-serializable
-
-peer_ips:
-    - 10.240.0.30
-    - 10.240.0.31
-    - 10.240.0.35
-
-agent_port: 3500
-database_port: 8500
-
-result_path_time_series: timeseries.csv
-result_path_log: result.log
-
-# start database by sending RPC calls to agents
-step1:
-    skip_start_database: false
-    zookeeper_max_client_connections: 5000
-    zookeeper_snap_count: 100000
-
-# start benchmark
-step2:
-    skip_stress_database: false
-    bench_type: read-oneshot
-    stale_read: true
-    connections: 1000
-    clients: 1000
-    key_size: 8
-    value_size: 256
-    total_requests: 500000
-    request_interval_ms: 0
-    etcdv3_compaction_cycle: 0
-
-# after benchmark
-step3:
-    action: stop
diff --git a/bench-configuration/read-oneshot-500K-keys-serializable/etcd-v3.1.yaml b/bench-configuration/read-oneshot-500K-keys-serializable/etcd-v3.1.yaml
deleted file mode 100644
index f4e056d2..00000000
--- a/bench-configuration/read-oneshot-500K-keys-serializable/etcd-v3.1.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-database: etcdv3
-test_name: etcd-v3.1-go1.7.3
-
-google_cloud_project_name: etcd-development
-google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
-google_cloud_storage_bucket_name: dbtester-results
-google_cloud_storage_sub_directory: 2016Q402-etcd-zk-consul/read-oneshot-500K-keys-serializable
-
-peer_ips:
-    - 10.240.0.20
-    - 10.240.0.21
-    - 10.240.0.22
-
-agent_port: 3500
-database_port: 2379
-
-result_path_time_series: timeseries.csv
-result_path_log: result.log
-
-# start database by sending RPC calls to agents
-step1:
-    skip_start_database: false
-    zookeeper_max_client_connections: 5000
-    zookeeper_snap_count: 100000
-
-# start benchmark
-step2:
-    skip_stress_database: false
-    bench_type: read-oneshot
-    stale_read: true
-    connections: 1000
-    clients: 1000
-    key_size: 8
-    value_size: 256
-    total_requests: 500000
-    request_interval_ms: 0
-    etcdv3_compaction_cycle: 0
-
-# after benchmark
-step3:
-    action: stop
diff --git a/bench-configuration/read-oneshot-500K-keys-serializable/zk-v3.4.9.yaml b/bench-configuration/read-oneshot-500K-keys-serializable/zk-v3.4.9.yaml
deleted file mode 100644
index 869b7a7c..00000000
--- a/bench-configuration/read-oneshot-500K-keys-serializable/zk-v3.4.9.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-database: zk
-test_name: zk-v3.4.9-java8
-
-google_cloud_project_name: etcd-development
-google_cloud_storage_key_path: /home/gyuho/gcloud-key.json
-google_cloud_storage_bucket_name: dbtester-results
-google_cloud_storage_sub_directory: 2016Q402-etcd-zk-consul/read-oneshot-500K-keys-serializable
-
-peer_ips:
-    - 10.240.0.25
-    - 10.240.0.27
-    - 10.240.0.28
-
-agent_port: 3500
-database_port: 2181
-
-result_path_time_series: timeseries.csv
-result_path_log: result.log
-
-# start database by sending RPC calls to agents
-step1:
-    skip_start_database: false
-    zookeeper_max_client_connections: 5000
-    zookeeper_snap_count: 100000
-
-# start benchmark
-step2:
-    skip_stress_database: false
-    bench_type: read-oneshot
-    stale_read: true
-    connections: 1000
-    clients: 1000
-    key_size: 8
-    value_size: 256
-    total_requests: 500000
-    request_interval_ms: 0
-    etcdv3_compaction_cycle: 0
-
-# after benchmark
-step3:
-    action: stop