From 9f0ea4e6be697aa8ca08a6da596d7ca5892d2183 Mon Sep 17 00:00:00 2001 From: Vratko Polak Date: Thu, 25 Mar 2021 19:26:35 +0100 Subject: 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 --- GPL/tools/trex/trex_stl_profile.py | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) (limited to 'GPL/tools/trex/trex_stl_profile.py') 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, ) -- cgit 1.2.3-korg