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selftests: net: Lower threshold on debug kernels for big_tcp_tunnels.sh

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Debug kernels on upstream CI runners run slower and generate fewer BIG
TCP packets, making the test flaky on upstream CI runners. Lower the
default threshold for those kernels.

Fixes: 5cb53743e1 ("selftests: net: Add a test for BIG TCP in UDP tunnels")
Signed-off-by: Alice Mikityanska <alice@isovalent.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260822120308.1165200-3-alice.kernel@fastmail.im
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Alice Mikityanska
2026-08-22 15:03:06 +03:00
committed by Jakub Kicinski
parent dc170da334
commit bb42c16f48
1 changed files with 9 additions and 2 deletions
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11
tools/testing/selftests/net/big_tcp_tunnels.sh
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@@ -17,11 +17,18 @@ CLIENT_IP6="2001:db8::1:2"
CLIENT_IP4_TUN="192.168.2.2"
CLIENT_IP6_TUN="2001:db8::2:2"
: "${PACKETS_THRESHOLD:=1000}"
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
if [ -z "$PACKETS_THRESHOLD" ]; then
if [ "$KSFT_MACHINE_SLOW" = yes ]; then
echo 'Debug kernel detected, lowering the default threshold'
PACKETS_THRESHOLD=100
else
PACKETS_THRESHOLD=1000
fi
fi
setup() {
ip netns add "$SERVER_NS"
ip netns add "$CLIENT_NS"