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# Copyright(c) 2019-2020 Intel Corporation. All rights reserved.
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import subprocess
import re
import time
import test
import pytest
from testlib.resctrl import Resctrl
from testlib.env import Env
from priority import PRIORITY_HIGH
class TestRdtsetMba(test.Test):
## @cond
@pytest.fixture(autouse=True)
def init(self, request):
super(TestRdtsetMba, self).init(request)
yield
super(TestRdtsetMba, self).fini()
## @endcond
## RDTSET - MBA Set COS definition (command)
#
# \b Priority: High
#
# \b Objective:
# Run command with provided MBA rate
#
# \b Instruction:
# 1. Run the "rdtset [-I] -t mba=50;cpu=5-6' -c 5-6 memtester 10M" to set cache allocation
# 2. Verify cache allocation with "pqos [-I] -s" command
# 3. Terminate memtester process
#
# \b Result:
# Observe in pqos output
# MBA COS7 => 50% available
@PRIORITY_HIGH
@pytest.mark.rdt_supported("mba")
def test_rdtset_mba_set_command(self, iface):
command = self.cmd_rdtset(iface, "-t mba=50;cpu=5-6 -c 5-6 memtester 10M")
rdtset = subprocess.Popen(command.split(), stdin=subprocess.PIPE, stdout=subprocess.PIPE)
time.sleep(0.1)
(stdout, _, exitstatus) = self.run_pqos(iface, "-s")
assert exitstatus == 0
if iface == "MSR":
last_cos = Env().get('mba', 'cos') - 1
else:
last_cos = Resctrl.get_ctrl_group_count() - 1
assert re.search("Core 5, L2ID [0-9]+, L3ID [0-9]+ => COS%d" % last_cos, stdout) \
is not None
assert re.search("Core 6, L2ID [0-9]+, L3ID [0-9]+ => COS%d" % last_cos, stdout) \
is not None
assert "MBA COS{} => 50% available".format(last_cos) in stdout
self.run("killall memtester")
rdtset.communicate()
## RDTSET - MBA Set COS definition (command) - Negative
#
# \b Priority: High
#
# \b Objective:
# Unable to run command with invalid MBA rate
#
# \b Instruction:
# Run the "rdtset [-I] -t mba=200;cpu=5-6' -c 5-6 memtester 10M" to set cache allocation
#
# \b Result:
# Observe "Invalid RDT parameters" in output
@PRIORITY_HIGH
@pytest.mark.rdt_supported("mba")
def test_rdtset_mba_command_negative(self, iface):
(_, stderr, exitstatus) = self.run_rdtset(iface, "-t mba=200;cpu=5-6 -c 5-6 memtester 10M")
assert exitstatus == 1
assert "Invalid RDT parameters" in stderr