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#!/router/bin/python
from .stl_general_test import CStlGeneral_Test, CTRexScenario
from trex_stl_lib.api import *
import os, sys
from collections import deque
from time import time, sleep
class STLBenchmark_Test(CStlGeneral_Test):
"""Benchark stateless performance"""
def test_CPU_benchmark(self):
timeout = 60 # max time to wait for stabilization
stabilize = 5 # ensure stabilization over this period
cores = self.configuration.trex['trex_cores']
ports = self.stl_trex.get_port_count()
print('')
for profile_bench in self.get_benchmark_param('profiles'):
cpu_utils = deque([0] * stabilize, maxlen = stabilize)
kwargs = profile_bench.get('kwargs', {})
print('Testing profile %s, kwargs: %s' % (profile_bench['name'], kwargs))
profile = STLProfile.load(os.path.join(CTRexScenario.scripts_path, profile_bench['name']), **kwargs)
self.stl_trex.reset()
self.stl_trex.clear_stats()
sleep(1)
self.stl_trex.add_streams(profile, ports = [0, 1])
self.stl_trex.start(ports = [0, 1], mult = '10%')
start_time = time()
for i in range(timeout + 1):
stats = self.stl_trex.get_stats()
cpu_utils.append(stats['global']['cpu_util'])
if i > stabilize and min(cpu_utils) > max(cpu_utils) * 0.95:
break
sleep(0.5)
if i == timeout:
raise Exception('Timeout on waiting for stabilization, last CPU util values: %s' % list(cpu_utils))
if stats[0]['opackets'] < 1000 or stats[1]['opackets'] < 1000:
raise Exception('Too few opackets, port0: %s, port1: %s' % (stats[0]['opackets'], stats[1]['opackets']))
if stats['global']['queue_full'] > 100000:
raise Exception('Too much queue_full: %s' % stats['global']['queue_full'])
if not cpu_utils[-1]:
raise Exception('CPU util is zero, last values: %s' % list(cpu_utils))
agv_cpu_util = sum(cpu_utils) / stabilize
bw_per_core = 2 * 2 * (100 / agv_cpu_util) * stats['global']['tx_bps'] / (ports * cores * 1e9)
print('Done (%ss), CPU util: %4g, bw_per_core: %6sGb/core' % (int(time() - start_time), agv_cpu_util, round(bw_per_core, 2)))
# TODO: add check of benchmark based on results from regression
# report benchmarks
if self.GAManager:
profile_repr = '%s %s' % (os.path.basename(profile_bench['name']), repr(kwargs).replace("'", ''))
self.GAManager.gaAddAction(Event = 'stateless_test', action = profile_repr, label = 'bw_per_core', value = int(bw_per_core))
# TODO: report expected once acquired
#self.GAManager.gaAddAction(Event = 'stateless_test', action = profile_repr, label = 'bw_per_core_exp', value = int(expected_norm_cpu))
self.GAManager.emptyAndReportQ()
def tearDown(self):
self.stl_trex.reset()
self.stl_trex.clear_stats()
sleep(1)
CStlGeneral_Test.tearDown(self)
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