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-rw-r--r--GPL/tools/trex/trex_astf_profile.py30
-rw-r--r--GPL/tools/trex/trex_stl_profile.py24
2 files changed, 33 insertions, 21 deletions
diff --git a/GPL/tools/trex/trex_astf_profile.py b/GPL/tools/trex/trex_astf_profile.py
index 3f244ecf09..d08fb61778 100644
--- a/GPL/tools/trex/trex_astf_profile.py
+++ b/GPL/tools/trex/trex_astf_profile.py
@@ -79,6 +79,7 @@ def simple_burst(
latency,
async_start=False,
traffic_directions=2,
+ delay=0.0,
):
"""Send traffic and measure packet loss and latency.
@@ -98,8 +99,9 @@ def simple_burst(
Duration details:
Contrary to stateless mode, ASTF profiles typically limit the number
of flows/transactions that can happen.
- The caller is expected to set the duration parameter accordingly to
- this limit and multiplier, including any overheads.
+ The caller is expected to set the duration parameter to idealized value,
+ but set the delay arguments when TRex is expected
+ to finish processing replies later (including a window for latency).
See *_traffic_duration output fields for TRex's measurement
of the real traffic duration (should be without any inactivity overheads).
If traffic has not ended by the final time, the traffic
@@ -111,11 +113,7 @@ def simple_burst(
:param profile_file: A python module with T-rex traffic profile.
:param duration: Expected duration for all transactions to finish,
- assuming only tolerable duration stretching happens.
- This includes later start of later transactions
- (according to TPS multiplier) and expected duration of each transaction.
- Critically, this also includes any delay TRex shows when starting
- traffic (but not the similar delay during stopping).
+ without any TRex related delays, without even latency.
:param framesize: Frame size.
:param multiplier: Multiplier of profile CPS.
:param port_0: Port 0 on the traffic generator.
@@ -123,6 +121,7 @@ def simple_burst(
:param latency: With latency stats.
:param async_start: Start the traffic and exit.
:param traffic_directions: Bidirectional (2) or unidirectional (1) traffic.
+ :param delay: Time increase [s] for sleep duration.
:type profile_file: str
:type duration: float
:type framesize: int or str
@@ -132,6 +131,7 @@ def simple_burst(
:type latency: bool
:type async_start: bool
:type traffic_directions: int
+ :type delay: float
"""
client = None
total_received = 0
@@ -179,14 +179,12 @@ def simple_burst(
# Choose CPS and start traffic.
client.start(
mult=multiplier,
- # Increase the input duration slightly,
- # to ensure it does not end before sleep&stop below happens.
- duration=duration + 0.1 if duration > 0 else duration,
+ duration=duration,
nc=True,
latency_pps=int(multiplier) if latency else 0,
client_mask=2**len(ports)-1,
)
- time_start = time.monotonic()
+ time_stop = time.monotonic() + duration + delay
if async_start:
# For async stop, we need to export the current snapshot.
@@ -196,8 +194,7 @@ def simple_burst(
xsnap1 = client.ports[port_1].get_xstats().reference_stats
print(f"Xstats snapshot 1: {xsnap1!r}")
else:
- time.sleep(duration)
-
+ time.sleep(duration + delay)
# Do not block yet, the existing transactions may take long time
# to finish. We need an action that is almost reset(),
# but without clearing stats.
@@ -208,7 +205,7 @@ def simple_burst(
client.stop(block=True)
# Read the stats after the traffic stopped (or time up).
- stats[time.monotonic() - time_start] = client.get_stats(
+ stats[time.monotonic() - time_stop] = client.get_stats(
ports=ports
)
@@ -442,6 +439,10 @@ def main():
u"--traffic_directions", type=int, default=2,
help=u"Send bi- (2) or uni- (1) directional traffic."
)
+ parser.add_argument(
+ u"--delay", required=True, type=float, default=0.0,
+ help=u"Allowed time overhead, sleep time is increased by this [s]."
+ )
args = parser.parse_args()
@@ -460,6 +461,7 @@ def main():
latency=args.latency,
async_start=args.async_start,
traffic_directions=args.traffic_directions,
+ delay=args.delay,
)
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,
)