initial_trial_duration=1.0,
number_of_intermediate_phases=2,
timeout=720.0,
- doublings=1,
ppta=1,
resetter=None,
traffic_directions=2,
ramp_up_rate=None,
ramp_up_duration=None,
state_timeout=300.0,
+ expansion_coefficient=4.0,
):
"""Setup initialized TG, perform optimized search, return intervals.
- If transaction_scale is nonzero, all non-init trial durations
- are set to 2.0 (as they do not affect the real trial duration)
+ If transaction_scale is nonzero, all init and non-init trial durations
+ are set to 1.0 (as they do not affect the real trial duration)
and zero intermediate phases are used.
- The initial phase still uses 1.0 seconds, to force remeasurement.
- That makes initial phase act as a warmup.
+ This way no re-measurement happens.
+ Warmup has to be handled via resetter or ramp-up mechanisms.
:param frame_size: Frame size identifier or value [B].
:param traffic_profile: Module name as a traffic profile identifier.
See GPL/traffic_profiles/trex for implemented modules.
:param minimum_transmit_rate: Minimal load in transactions per second.
:param maximum_transmit_rate: Maximal load in transactions per second.
- :param packet_loss_ratio: Fraction of packets lost, for PDR [1].
+ :param packet_loss_ratio: Ratio of packets lost, for PDR [1].
:param final_relative_width: Final lower bound transmit rate
cannot be more distant that this multiple of upper bound [1].
:param final_trial_duration: Trial duration for the final phase [s].
to perform before the final phase [1].
:param timeout: The search will fail itself when not finished
before this overall time [s].
- :param doublings: How many doublings to do in external search step.
- Default 1 is suitable for fairly stable tests,
- less stable tests might get better overal duration with 2 or more.
:param ppta: Packets per transaction, aggregated over directions.
Needed for udp_pps which does not have a good transaction counter,
so we need to compute expected number of packets.
:param ramp_up_rate: Rate to use in ramp-up trials [pps].
:param ramp_up_duration: Duration of ramp-up trials [s].
:param state_timeout: Time of life of DUT state [s].
+ :param expansion_coefficient: In external search multiply width by this.
:type frame_size: str or int
:type traffic_profile: str
:type minimum_transmit_rate: float
:type initial_trial_duration: float
:type number_of_intermediate_phases: int
:type timeout: float
- :type doublings: int
:type ppta: int
:type resetter: Optional[Callable[[], None]]
:type traffic_directions: int
:type ramp_up_rate: float
:type ramp_up_duration: float
:type state_timeout: float
+ :type expansion_coefficient: float
:returns: Structure containing narrowed down NDR and PDR intervals
and their measurements.
- :rtype: NdrPdrResult
+ :rtype: List[Receiverateinterval]
:raises RuntimeError: If total duration is larger than timeout.
"""
# we need instance of TrafficGenerator instantiated by Robot Framework
# even though this is surprising for log readers.
if transaction_scale:
initial_trial_duration = 1.0
- final_trial_duration = 2.0
+ final_trial_duration = 1.0
number_of_intermediate_phases = 0
timeout += transaction_scale * 3e-4
tg_instance.set_rate_provider_defaults(
number_of_intermediate_phases=number_of_intermediate_phases,
initial_trial_duration=initial_trial_duration,
timeout=timeout,
- doublings=doublings,
+ debug=logger.debug,
+ expansion_coefficient=expansion_coefficient,
)
- result = algorithm.narrow_down_ndr_and_pdr(
+ if packet_loss_ratio:
+ packet_loss_ratios = [0.0, packet_loss_ratio]
+ else:
+ # Happens in reconf tests.
+ packet_loss_ratios = [packet_loss_ratio]
+ results = algorithm.narrow_down_intervals(
min_rate=minimum_transmit_rate,
max_rate=maximum_transmit_rate,
- packet_loss_ratio=packet_loss_ratio,
+ packet_loss_ratios=packet_loss_ratios,
)
- return result
+ return results
@staticmethod
def perform_soak_search(
See GPL/traffic_profiles/trex for implemented modules.
:param minimum_transmit_rate: Minimal load in transactions per second.
:param maximum_transmit_rate: Maximal load in transactions per second.
- :param plr_target: Fraction of packets lost to achieve [1].
+ :param plr_target: Ratio of packets lost to achieve [1].
:param tdpt: Trial duration per trial.
The algorithm linearly increases trial duration with trial number,
this is the increment between succesive trials, in seconds.
Code Review / csit.git / blobdiff