From: Alice Mikityanska <[email protected]> CONFIG_DEBUG_NET kernels run slower and generate fewer BIG TCP packets, making the test flaky on upstream CI runners. Lower the default threshold for those kernels.
Signed-off-by: Alice Mikityanska <[email protected]> --- tools/testing/selftests/net/big_tcp_tunnels.sh | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/big_tcp_tunnels.sh b/tools/testing/selftests/net/big_tcp_tunnels.sh index 9b7d0456bcc1..e27774eae20e 100755 --- a/tools/testing/selftests/net/big_tcp_tunnels.sh +++ b/tools/testing/selftests/net/big_tcp_tunnels.sh @@ -17,11 +17,25 @@ CLIENT_IP6="2001:db8::1:2" CLIENT_IP4_TUN="192.168.2.2" CLIENT_IP6_TUN="2001:db8::2:2" -: "${PACKETS_THRESHOLD:=1000}" - # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 +is_debug() { + local config="/proc/config.gz" + [ -f "$config" ] || config="/boot/config-$(uname -r)" + [ -f "$config" ] || return 1 # No config found; assume non-debug. + gzip -dcfq "$config" | grep -qx 'CONFIG_DEBUG_NET=y' || return 1 +} + +if [ -z "$PACKETS_THRESHOLD" ]; then + if is_debug; then + echo 'Debug kernel detected, lowering the default threshold' + PACKETS_THRESHOLD=100 + else + PACKETS_THRESHOLD=1000 + fi +fi + setup() { ip netns add "$SERVER_NS" ip netns add "$CLIENT_NS" -- 2.55.0
