support more parameters in iperf3 testcase

JIRA: YARDSTICK-755

The parameters that iperf3 testcase support now maybe insufficient in some usecase.
The test case should support parameters such as: windows size and length of buffer.
This work is about adding more parameters that can be specified in options section in the YAML file.

Change-Id: Ibc81cd1bbbc6fdd492aa67bd3acee7cd310c87ef
Signed-off-by: Ace Lee <liyin11@huawei.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/yardstick/benchmark/scenarios/networking/iperf3.py b/yardstick/benchmark/scenarios/networking/iperf3.py
index 3135af9bd..a3d273750 100644
--- a/yardstick/benchmark/scenarios/networking/iperf3.py
+++ b/yardstick/benchmark/scenarios/networking/iperf3.py
@@ -50,6 +50,17 @@ For more info see http://software.es.net/iperf
         type:    int
         unit:    bytes
         default: -
+    length - length of buffer to read or write,
+      (default 128 KB for TCP, 8 KB for UDP)
+        type:    int
+        unit:    k
+        default: -
+    window - set window size / socket buffer size
+      set TCP windows size. for UDP way to test, this will set to accept UDP
+      packet buffer size, limit the max size of acceptable data packet.
+        type:    int
+        unit:    k
+        default: -
     """
     __scenario_type__ = "Iperf3"
 
@@ -122,6 +133,12 @@ For more info see http://software.es.net/iperf
         elif "blockcount" in options:
             cmd += " --blockcount %d" % options["blockcount"]
 
+        if "length" in options:
+            cmd += " --length %s" % options["length"]
+
+        if "window" in options:
+            cmd += " --window %s" % options["window"]
+
         LOG.debug("Executing command: %s", cmd)
 
         status, stdout, stderr = self.host.execute(cmd)