From: Colin King <colin.king@canonical.com>
To: "David S . Miller" <davem@davemloft.net>,
Shuah Khan <shuah@kernel.org>,
netdev@vger.kernel.org, linux-kselftest@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] selftests/net: skip msg_zerocopy test if we have less than 4 CPUs
Date: Tue, 4 Aug 2020 13:30:12 +0100 [thread overview]
Message-ID: <20200804123012.378750-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
The current test will exit with a failure if it cannot set affinity on
specific CPUs which is problematic when running this on single CPU
systems. Add a check for the number of CPUs and skip the test if
the CPU requirement is not met.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
tools/testing/selftests/net/msg_zerocopy.sh | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/testing/selftests/net/msg_zerocopy.sh b/tools/testing/selftests/net/msg_zerocopy.sh
index 825ffec85cea..97bc527e1297 100755
--- a/tools/testing/selftests/net/msg_zerocopy.sh
+++ b/tools/testing/selftests/net/msg_zerocopy.sh
@@ -21,6 +21,11 @@ readonly DADDR6='fd::2'
readonly path_sysctl_mem="net.core.optmem_max"
+if [[ $(nproc) -lt 4 ]]; then
+ echo "SKIP: test requires at least 4 CPUs"
+ exit 4
+fi
+
# No arguments: automated test
if [[ "$#" -eq "0" ]]; then
$0 4 tcp -t 1
--
2.27.0
next reply other threads:[~2020-08-04 12:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-04 12:30 Colin King [this message]
2020-08-04 23:06 ` David Miller
2020-08-05 0:54 ` Eric Dumazet
2020-08-05 8:06 ` Willem de Bruijn
2020-08-05 8:22 ` Colin Ian King
2020-08-05 8:44 ` Willem de Bruijn
2020-08-05 8:48 ` Colin Ian King
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