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selftests: tc-testing: move back to per test ns setup

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Surprisingly in kernel configs with most of the debug knobs turned on,
pre-allocating the test resources makes tdc run much slower overall than
when allocating resources on a per test basis.

As these knobs are used in kselftests in downstream CIs, let's go back
to the old way of doing things to avoid kselftests timeouts.

Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202311161129.3b45ed53-oliver.sang@intel.com
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20231117171208.2066136-3-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Pedro Tammela 2023-11-17 14:12:04 -03:00 • committed by Jakub Kicinski
parent 025de7b6a6
commit 50a5988a7a
1 changed files with 25 additions and 43 deletions
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68
tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py
View file

@ -17,44 +17,6 @@ except ImportError:
netlink = False
print("!!! Consider installing pyroute2 !!!")
def prepare_suite(obj, test):
original = obj.args.NAMES
if 'skip' in test and test['skip'] == 'yes':
return
if 'nsPlugin' not in test['plugins']:
return
shadow = {}
shadow['IP'] = original['IP']
shadow['TC'] = original['TC']
shadow['NS'] = '{}-{}'.format(original['NS'], test['random'])
shadow['DEV0'] = '{}id{}'.format(original['DEV0'], test['id'])
shadow['DEV1'] = '{}id{}'.format(original['DEV1'], test['id'])
shadow['DUMMY'] = '{}id{}'.format(original['DUMMY'], test['id'])
shadow['DEV2'] = original['DEV2']
obj.args.NAMES = shadow
if netlink == True:
obj._nl_ns_create()
else:
obj._ns_create()
# Make sure the netns is visible in the fs
while True:
obj._proc_check()
try:
ns = obj.args.NAMES['NS']
f = open('/run/netns/{}'.format(ns))
f.close()
break
except:
time.sleep(0.1)
continue
obj.args.NAMES = original
class SubPlugin(TdcPlugin):
def __init__(self):
self.sub_class = 'ns/SubPlugin'
@ -65,19 +27,39 @@ class SubPlugin(TdcPlugin):
super().pre_suite(testcount, testlist)
print("Setting up namespaces and devices...")
def prepare_test(self, test):
if 'skip' in test and test['skip'] == 'yes':
return
with Pool(self.args.mp) as p:
it = zip(cycle([self]), testlist)
p.starmap(prepare_suite, it)
if 'nsPlugin' not in test['plugins']:
return
def pre_case(self, caseinfo, test_skip):
if netlink == True:
self._nl_ns_create()
else:
self._ns_create()
# Make sure the netns is visible in the fs
while True:
self._proc_check()
try:
ns = self.args.NAMES['NS']
f = open('/run/netns/{}'.format(ns))
f.close()
break
except:
time.sleep(0.1)
continue
def pre_case(self, test, test_skip):
if self.args.verbose:
print('{}.pre_case'.format(self.sub_class))
if test_skip:
return
self.prepare_test(test)
def post_case(self):
if self.args.verbose:
print('{}.post_case'.format(self.sub_class))