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Add memory usage checker for the stress route test #14240

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Add memory usage checker for the stress route test #14240

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47 changes: 47 additions & 0 deletions tests/stress/test_stress_routes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,10 @@ def test_announce_withdraw_route(duthosts, localhost, tbinfo, get_function_conpl

loop_times = LOOP_TIMES_LEVEL_MAP[normalized_level]

frr_demons_to_check = ['bgpd', 'zebra']
start_time_frr_daemon_memory = get_frr_daemon_memory_usage(duthost, frr_demons_to_check)
logging.info(f"memory usage at start: {start_time_frr_daemon_memory}")

while loop_times > 0:
announce_withdraw_routes(duthost, namespace, localhost, ptf_ip, topo_name)
loop_times -= 1
Expand All @@ -88,3 +92,46 @@ def test_announce_withdraw_route(duthosts, localhost, tbinfo, get_function_conpl
"ipv4 route used after is not equal to it used before")
pytest_assert(abs(ipv6_route_used_after - ipv6_route_used_before) < ALLOW_ROUTES_CHANGE_NUMS,
"ipv6 route used after is not equal to it used before")

end_time_frr_daemon_memory = get_frr_daemon_memory_usage(duthost, frr_demons_to_check)
logging.info(f"memory usage at end: {end_time_frr_daemon_memory}")
check_memory_usage_is_expected(duthost, frr_demons_to_check, start_time_frr_daemon_memory,
end_time_frr_daemon_memory)


def check_memory_usage_is_expected(duthost, frr_demons_to_check, start_time_frr_daemon_memory,
end_time_frr_daemon_memory):

unsupported_branches = ['202012', '202205', '202211', '202305', '202311', "20405"]
if duthost.os_version in unsupported_branches or duthost.sonic_release in unsupported_branches:
logger.info("Only check the memory usage after the 202405")
return ""
incr_frr_daemon_memory_threshold_dict = {
"bgpd": 100,
"zebra": 200
} # unit is MiB
for daemon in frr_demons_to_check:
logging.info(f"{daemon} memory usage at end: \n%s", end_time_frr_daemon_memory[daemon])

# Calculate diff in FRR daemon memory
incr_frr_daemon_memory = \
float(end_time_frr_daemon_memory[daemon]) - float(start_time_frr_daemon_memory[daemon])
logging.info(f"{daemon} absolute difference: %d", incr_frr_daemon_memory)
pytest_assert(incr_frr_daemon_memory < incr_frr_daemon_memory_threshold_dict[daemon],
f"The increase memory should not exceed than {incr_frr_daemon_memory_threshold_dict[daemon]} MiB")


def get_frr_daemon_memory_usage(duthost, daemon_list):
frr_daemon_memory_dict = {}
for daemon in daemon_list:
frr_daemon_memory_output = duthost.shell(f'vtysh -c "show memory {daemon}"')["stdout"]
logging.info(f"{daemon} memory status: \n%s", frr_daemon_memory_output)
output = duthost.shell(f'vtysh -c "show memory {daemon}" | grep "Free ordinary blocks"')["stdout"]
frr_daemon_memory = output.split()[-2]
unit = output.split()[-1]
if unit == "KiB":
frr_daemon_memory = frr_daemon_memory / 1000
elif unit == "GiB":
frr_daemon_memory = frr_daemon_memory * 1000
frr_daemon_memory_dict[daemon] = frr_daemon_memory
return frr_daemon_memory_dict
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