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Subject[PATCH] selftests/net: skip msg_zerocopy test if we have less than 4 CPUs
Date
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
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