test: remove retransmits metric from tcp throughput perf test

Similar to pkt_loss in the latency test, it is always 0.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

tests/integration_tests/performance/configs/test_network_tcp_throughput_config_4.14.json

@@ -4871,15 +4871,6 @@
             ],
             "unit": "seconds"
         },
-        "retransmits": {
-            "statistics": [
-                {
-                    "function": "Sum",
-                    "name": "total"
-                }
-            ],
-            "unit": "#"
-        },
         "throughput": {
             "statistics": [
                 {

tests/integration_tests/performance/configs/test_network_tcp_throughput_config_5.10.json

@@ -4871,15 +4871,6 @@
             ],
             "unit": "seconds"
         },
-        "retransmits": {
-            "statistics": [
-                {
-                    "function": "Sum",
-                    "name": "total"
-                }
-            ],
-            "unit": "#"
-        },
         "throughput": {
             "statistics": [
                 {

tests/integration_tests/performance/configs/test_network_tcp_throughput_config_6.1.json

@@ -4871,15 +4871,6 @@
             ],
             "unit": "seconds"
         },
-        "retransmits": {
-            "statistics": [
-                {
-                    "function": "Sum",
-                    "name": "total"
-                }
-            ],
-            "unit": "#"
-        },
         "throughput": {
             "statistics": [
                 {

tests/integration_tests/performance/test_network_tcp_throughput.py

@@ -34,8 +34,6 @@
 THROUGHPUT = "throughput"
 THROUGHPUT_TOTAL = "total"
 DURATION = "duration"
-RETRANSMITS = "retransmits"
-RETRANSMITS_TOTAL = "total"
 BASE_PORT = 5000
 CPU_UTILIZATION_VMM = "cpu_utilization_vmm"
 CPU_UTILIZATION_VCPUS_TOTAL = "cpu_utilization_vcpus_total"
@@ -188,10 +186,6 @@ def consume_iperf_tcp_output(cons, result, vcpus_count):
     duration = float(total_received["seconds"])
     cons.consume_data(DURATION, duration)
 
-    total_sent = result[IPERF3_END_RESULTS_TAG]["sum_sent"]
-    retransmits = int(total_sent["retransmits"])
-    cons.consume_data(RETRANSMITS, retransmits)
-
     # Computed at the receiving end.
     total_recv_bytes = int(total_received["bytes"])
     tput = round((total_recv_bytes * 8) / (1024 * 1024 * duration), 2)