1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-only
#
# Multithreaded cgroup v2 test
#
# Copyright (c) 2022 Oracle and/or its affiliates.
# Author: Kamalesh Babulal <kamalesh.babulal@oracle.com>
#
from cgroup import Cgroup, CgroupVersion
from process import Process
import consts
import ftests
import sys
import os
CONTROLLER = 'cpu'
PARENT_CGNAME = '036threaded'
CHILD_CGPATH = os.path.join(PARENT_CGNAME, 'childcg')
SETTING = 'cgroup.type'
AFTER = 'threaded'
THREADS = 3
def prereqs(config):
result = consts.TEST_PASSED
cause = None
if config.args.container:
result = consts.TEST_SKIPPED
cause = 'This test cannot be run within a container'
return result, cause
if CgroupVersion.get_version(CONTROLLER) != CgroupVersion.CGROUP_V2:
result = consts.TEST_SKIPPED
cause = 'This test requires the cgroup v2'
return result, cause
def setup(config):
Cgroup.create(config, CONTROLLER, PARENT_CGNAME)
Cgroup.create(config, CONTROLLER, CHILD_CGPATH)
Cgroup.set_and_validate(config, CHILD_CGPATH, SETTING, AFTER)
def test(config):
config.process.create_threaded_process_in_cgroup(
config, CONTROLLER, PARENT_CGNAME, THREADS)
threads = Cgroup.get(config, controller=None, cgname=PARENT_CGNAME,
setting='cgroup.threads', print_headers=False,
values_only=True)
threads = threads.replace('\n', '').split('\t')
# #pick the first thread
thread_tid = threads[1]
Cgroup.set_and_validate(config, CHILD_CGPATH, 'cgroup.threads', thread_tid)
return consts.TEST_PASSED, None
def teardown(config):
# destroy the child processes
pids = Cgroup.get_pids_in_cgroup(config, PARENT_CGNAME, CONTROLLER)
Process.kill(config, pids)
Cgroup.delete(config, CONTROLLER, PARENT_CGNAME, recursive=True)
def main(config):
[result, cause] = prereqs(config)
if result != consts.TEST_PASSED:
return [result, cause]
try:
setup(config)
[result, cause] = test(config)
finally:
teardown(config)
return [result, cause]
if __name__ == '__main__':
config = ftests.parse_args()
# this test was invoked directly. run only it
config.args.num = int(os.path.basename(__file__).split('-')[0])
sys.exit(ftests.main(config))
# vim: set et ts=4 sw=4:
|
