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authorVratko Polak <vrpolak@cisco.com>2021-03-25 19:26:35 +0100
committerVratko Polak <vrpolak@cisco.com>2021-03-26 14:32:10 +0100
commit9f0ea4e6be697aa8ca08a6da596d7ca5892d2183 (patch)
tree79ede5e7c43a5d0106a84b81093650c7bce8117b /GPL/tools/trex/trex_stl_profile.py
parent6bba7b0bef31a8993848f0dcf5e661e8ccf02ddd (diff)
STL traffic: Use the sleep+stop logic
+ PPS limit for AWS set to 1.2 Mpps. + The logic is very similar to that one in ASTF driver. + This helps for testbeds with high duration stretching (e.g. AWS). + Difference: No transaction scale, and we deal with floats. + Update loss counting to count unsent packets as lost. + Also count "unsent" transactions for other transaction types. + If nonzero, log the number of unsent packets/transactions. + Make STL and ASTF time overhead constant (called delay) configurable. + Subtract delay from approximated_duration, also for ASTF. Change-Id: I6ee6aa6fba4f110ba1636e1b0ff76cac64383e33 Signed-off-by: Vratko Polak <vrpolak@cisco.com>
Diffstat (limited to 'GPL/tools/trex/trex_stl_profile.py')
-rw-r--r--GPL/tools/trex/trex_stl_profile.py24
1 files changed, 17 insertions, 7 deletions
diff --git a/GPL/tools/trex/trex_stl_profile.py b/GPL/tools/trex/trex_stl_profile.py
index 8dbc046482..4eedc80899 100644
--- a/GPL/tools/trex/trex_stl_profile.py
+++ b/GPL/tools/trex/trex_stl_profile.py
@@ -80,6 +80,7 @@ def simple_burst(
async_start=False,
traffic_directions=2,
force=False,
+ delay=0.0,
):
"""Send traffic and measure packet loss and latency.
@@ -108,6 +109,7 @@ def simple_burst(
:param async_start: Start the traffic and exit.
:param traffic_directions: Bidirectional (2) or unidirectional (1) traffic.
:param force: Force start regardless of ports state.
+ :param delay: Sleep overhead [s].
:type profile_file: str
:type framesize: int or str
:type duration: float
@@ -118,6 +120,7 @@ def simple_burst(
:type async_start: bool
:type traffic_directions: int
:type force: bool
+ :type delay: float
"""
client = None
total_rcvd = 0
@@ -201,18 +204,20 @@ def simple_burst(
xsnap1 = client.ports[1].get_xstats().reference_stats
print(f"Xstats snapshot 1: {xsnap1!r}")
else:
- # Block until done:
time_start = time.monotonic()
- client.wait_on_traffic(ports=ports, timeout=duration+30)
+ # wait_on_traffic fails if duration stretches by 30 seconds or more.
+ # TRex has some overhead, wait some more.
+ time.sleep(duration + delay)
+ client.stop()
time_stop = time.monotonic()
- approximated_duration = time_stop - time_start
-
+ approximated_duration = time_stop - time_start - delay
+ # Read the stats after the traffic stopped (or time up).
+ stats = client.get_stats()
if client.get_warnings():
for warning in client.get_warnings():
print(warning)
-
- # Read the stats after the test
- stats = client.get_stats()
+ # Now finish the complete reset.
+ client.reset()
print(u"##### Statistics #####")
print(json.dumps(stats, indent=4, separators=(u",", u": ")))
@@ -314,6 +319,10 @@ def main():
u"--force", action=u"store_true", default=False,
help=u"Force start regardless of ports state."
)
+ parser.add_argument(
+ u"--delay", required=True, type=float, default=0.0,
+ help=u"Delay assumed for traffic, sleep time is increased by this [s]."
+ )
args = parser.parse_args()
@@ -333,6 +342,7 @@ def main():
async_start=args.async_start,
traffic_directions=args.traffic_directions,
force=args.force,
+ delay=args.delay,
)