* [PATCH v2] selftests/bpf: enlarge select() timeout for test_maps
@ 2021-08-19 1:15 Li Zhijian
2021-08-19 1:21 ` Song Liu
0 siblings, 1 reply; 2+ messages in thread
From: Li Zhijian @ 2021-08-19 1:15 UTC (permalink / raw)
To: shuah, linux-kselftest, netdev, bpf
Cc: ast, daniel, andrii, kafai, songliubraving, yhs, kpsingh,
linux-kernel, philip.li, yifeix.zhu, Li Zhijian,
kernel test robot
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>
---
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
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
---
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] selftests/bpf: enlarge select() timeout for test_maps
2021-08-19 1:15 [PATCH v2] selftests/bpf: enlarge select() timeout for test_maps Li Zhijian
@ 2021-08-19 1:21 ` Song Liu
0 siblings, 0 replies; 2+ messages in thread
From: Song Liu @ 2021-08-19 1:21 UTC (permalink / raw)
To: Li Zhijian
Cc: Shuah Khan, open list:KERNEL SELFTEST FRAMEWORK, netdev, bpf,
ast, daniel, andrii, Martin Lau, Yonghong Song, kpsingh,
linux-kernel, philip.li, yifeix.zhu, kernel test robot
> On Aug 18, 2021, at 6:15 PM, Li Zhijian <lizhijian@cn.fujitsu.com> wrote:
>
> 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>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-08-19 1:22 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-19 1:15 [PATCH v2] selftests/bpf: enlarge select() timeout for test_maps Li Zhijian
2021-08-19 1:21 ` Song Liu
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).