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-# TCP Benchmarks
-
-This directory contains a standardized TCP benchmark. This helps to evaluate the
-performance of netstack and native networking stacks under various conditions.
-
-## `tcp_benchmark`
-
-This benchmark allows TCP throughput testing under various conditions. The setup
-consists of an iperf client, a client proxy, a server proxy and an iperf server.
-The client proxy and server proxy abstract the network mechanism used to
-communicate between the iperf client and server.
-
-The setup looks like the following:
-
-```
- +--------------+  (native)            +--------------+
- | iperf client |[lo @ 10.0.0.1]------>| client proxy |
- +--------------+                      +--------------+
-                                    [client.0 @ 10.0.0.2]
-                            (netstack)  |            |  (native)
-                                        +------+-----+
-                                               |
-                                             [br0]
-                                               |
-          Network emulation applied ---> [wan.0:wan.1]
-                                               |
-                                             [br1]
-                                               |
-                                        +------+-----+
-                            (netstack)  |            |  (native)
-                                     [server.0 @ 10.0.0.3]
- +--------------+                      +--------------+
- | iperf server |<------[lo @ 10.0.0.4]| server proxy |
- +--------------+            (native)  +--------------+
-```
-
-Different configurations can be run using different arguments. For example:
-
-*   Native test under normal internet conditions: `tcp_benchmark`
-*   Native test under ideal conditions: `tcp_benchmark --ideal`
-*   Netstack client under ideal conditions: `tcp_benchmark --client --ideal`
-*   Netstack client with 5% packet loss: `tcp_benchmark --client --ideal --loss
-    5`
-
-Use `tcp_benchmark --help` for full arguments.
-
-This tool may be used to easily generate data for graphing. For example, to
-generate a CSV for various latencies, you might do:
-
-```
-rm -f /tmp/netstack_latency.csv /tmp/native_latency.csv
-latencies=$(seq 0 5 50;
-            seq 60 10 100;
-            seq 125 25 250;
-            seq 300 50 500)
-for latency in $latencies; do
-  read throughput client_cpu server_cpu <<< \
-    $(./tcp_benchmark --duration 30 --client --ideal --latency $latency)
-  echo $latency,$throughput,$client_cpu >> /tmp/netstack_latency.csv
-done
-for latency in $latencies; do
-  read throughput client_cpu server_cpu <<< \
-    $(./tcp_benchmark --duration 30 --ideal --latency $latency)
-  echo $latency,$throughput,$client_cpu >> /tmp/native_latency.csv
-done
-```
-
-Similarly, to generate a CSV for various levels of packet loss, the following
-would be appropriate:
-
-```
-rm -f /tmp/netstack_loss.csv /tmp/native_loss.csv
-losses=$(seq 0 0.1 1.0;
-         seq 1.2 0.2 2.0;
-         seq 2.5 0.5 5.0;
-         seq 6.0 1.0 10.0)
-for loss in $losses; do
-  read throughput client_cpu server_cpu <<< \
-    $(./tcp_benchmark --duration 30 --client --ideal --latency 10 --loss $loss)
-  echo $loss,$throughput,$client_cpu >> /tmp/netstack_loss.csv
-done
-for loss in $losses; do
-  read throughput client_cpu server_cpu <<< \
-    $(./tcp_benchmark --duration 30 --ideal --latency 10 --loss $loss)
-  echo $loss,$throughput,$client_cpu >> /tmp/native_loss.csv
-done
-```