From: Li Zhijian <lizhijian@cn.fujitsu.com>
To: <shuah@kernel.org>, <linux-kselftest@vger.kernel.org>,
<netdev@vger.kernel.org>, <bpf@vger.kernel.org>
Cc: <ast@kernel.org>, <daniel@iogearbox.net>, <andrii@kernel.org>,
<kafai@fb.com>, <songliubraving@fb.com>, <yhs@fb.com>,
<kpsingh@kernel.org>, <linux-kernel@vger.kernel.org>,
<philip.li@intel.com>, <yifeix.zhu@intel.com>,
Li Zhijian <lizhijian@cn.fujitsu.com>,
"kernel test robot" <lkp@intel.com>
Subject: [PATCH v2 1/5] selftests/bpf: enlarge select() timeout for test_maps
Date: Fri, 20 Aug 2021 09:55:53 +0800 [thread overview]
Message-ID: <20210820015556.23276-2-lizhijian@cn.fujitsu.com> (raw)
In-Reply-To: <20210820015556.23276-1-lizhijian@cn.fujitsu.com>
0Day robot observed that it's easily timeout on a heavy load host.
-------------------
# selftests: bpf: test_maps
# Fork 1024 tasks to 'test_update_delete'
# Fork 1024 tasks to 'test_update_delete'
# Fork 100 tasks to 'test_hashmap'
# Fork 100 tasks to 'test_hashmap_percpu'
# Fork 100 tasks to 'test_hashmap_sizes'
# Fork 100 tasks to 'test_hashmap_walk'
# Fork 100 tasks to 'test_arraymap'
# Fork 100 tasks to 'test_arraymap_percpu'
# Failed sockmap unexpected timeout
not ok 3 selftests: bpf: test_maps # exit=1
# selftests: bpf: test_lru_map
# nr_cpus:8
-------------------
Since this test will be scheduled by 0Day to a random host that could have
only a few cpus(2-8), enlarge the timeout to avoid a false NG report.
In practice, i tried to pin it to only one cpu by 'taskset 0x01 ./test_maps',
and knew 10S is likely enough, but i still perfer to a larger value 30.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Acked-by: Song Liu <songliubraving@fb.com>
---
V2: update to 30 seconds
3S is not enough sometimes on a very busy host
taskset 1,1 ./test_maps 9
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
Failed sockmap unexpected timeout
taskset 1,1 ./test_maps 10
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
test_array_map_batch_ops:PASS
test_array_percpu_map_batch_ops:PASS
test_htab_map_batch_ops:PASS
test_htab_percpu_map_batch_ops:PASS
test_lpm_trie_map_batch_ops:PASS
test_sk_storage_map:PASS
test_maps: OK, 0 SKIPPED
taskset 0x01 ./test_maps 9
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
test_array_map_batch_ops:PASS
test_array_percpu_map_batch_ops:PASS
test_htab_map_batch_ops:PASS
test_htab_percpu_map_batch_ops:PASS
test_lpm_trie_map_batch_ops:PASS
test_sk_storage_map:PASS
test_maps: OK, 0 SKIPPED
taskset 0x01 ./test_maps 10
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
Fork 1024 tasks to 'test_update_delete'
Fork 1024 tasks to 'test_update_delete'
Fork 100 tasks to 'test_hashmap'
Fork 100 tasks to 'test_hashmap_percpu'
Fork 100 tasks to 'test_hashmap_sizes'
Fork 100 tasks to 'test_hashmap_walk'
Fork 100 tasks to 'test_arraymap'
Fork 100 tasks to 'test_arraymap_percpu'
test_array_map_batch_ops:PASS
test_array_percpu_map_batch_ops:PASS
test_htab_map_batch_ops:PASS
test_htab_percpu_map_batch_ops:PASS
test_lpm_trie_map_batch_ops:PASS
test_sk_storage_map:PASS
test_maps: OK, 0 SKIPPED
---
tools/testing/selftests/bpf/test_maps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
index 30cbf5d98f7d..de58a3070eea 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -985,7 +985,7 @@ static void test_sockmap(unsigned int tasks, void *data)
FD_ZERO(&w);
FD_SET(sfd[3], &w);
- to.tv_sec = 1;
+ to.tv_sec = 30;
to.tv_usec = 0;
s = select(sfd[3] + 1, &w, NULL, NULL, &to);
if (s == -1) {
--
2.32.0
next prev parent reply other threads:[~2021-08-20 1:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-20 1:55 [PATCH v2 0/5] selftests/bpf: minor fixups Li Zhijian
2021-08-20 1:55 ` Li Zhijian [this message]
2021-08-20 1:55 ` [PATCH v2 2/5] selftests/bpf: make test_doc_build.sh work from script directory Li Zhijian
2021-08-20 1:55 ` [PATCH v2 3/5] selftests/bpf: add default bpftool built by selftests to PATH Li Zhijian
2021-08-20 1:55 ` [PATCH v2 4/5] selftests/bpf: add missing files required by test_bpftool.sh for installing Li Zhijian
2021-08-20 2:55 ` [PATCH v2 5/5] selftests/bpf: exit with KSFT_SKIP if no Makefile found Li Zhijian
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