From: Alice Mikityanska <alice.kernel@fastmail.im>
To: Matthieu Baerts <matttbe@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Jakub Kicinski <kuba@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>,
"David S. Miller" <davem@davemloft.net>,
Simon Horman <horms@kernel.org>, Shuah Khan <shuah@kernel.org>,
Nikolay Aleksandrov <razor@blackwall.org>,
netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
Alice Mikityanska <alice@isovalent.com>
Subject: [PATCH net v2 0/4] Improve stability of big_tcp_tunnels.sh selftest
Date: Sat, 22 Aug 2026 15:03:04 +0300 [thread overview]
Message-ID: <20260822120308.1165200-1-alice.kernel@fastmail.im> (raw)
From: Alice Mikityanska <alice@isovalent.com>
This series addresses flakiness of big_tcp_tunnels.sh discussed at:
https://lore.kernel.org/netdev/349c582c-73e3-468c-91cd-ad6cc3562700@app.fastmail.com/
Lower the thresholds to avoid failures like this (number of packets
below the threshold):
https://netdev-ctrl.bots.linux.dev/logview.html?f=/logs/vmksft/net-dbg/results/754376/28-big-tcp-tunnels-sh/stdout
Tweak tcp_min_tso_segs and initcwnd to avoid failures like this (BIG TCP
doesn't kick in in slow configurations):
https://netdev-ctrl.bots.linux.dev/logview.html?f=/logs/vmksft/net-dbg/results/751124/21-big-tcp-tunnels-sh/stdout
v2 changes: Use $KSFT_MACHINE_SLOW instead of probing kernel config.
v1: https://lore.kernel.org/netdev/20260814194124.3102581-1-alice.kernel@fastmail.im/
Alice Mikityanska (4):
selftests: net: Wait for netserver to launch
selftests: net: Lower threshold on debug kernels for
big_tcp_tunnels.sh
selftests: net: Lower threshold with csum offload off in
big_tcp_tunnels.sh
selftests: net: Fix slow configurations in big_tcp_tunnels.sh
.../testing/selftests/net/big_tcp_tunnels.sh | 38 +++++++++++++++++--
1 file changed, 34 insertions(+), 4 deletions(-)
--
2.55.0
next reply other threads:[~2026-08-22 12:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-22 12:03 Alice Mikityanska [this message]
2026-08-22 12:03 ` [PATCH net v2 1/4] selftests: net: Wait for netserver to launch Alice Mikityanska
2026-08-22 12:03 ` [PATCH net v2 2/4] selftests: net: Lower threshold on debug kernels for big_tcp_tunnels.sh Alice Mikityanska
2026-08-22 12:03 ` [PATCH net v2 3/4] selftests: net: Lower threshold with csum offload off in big_tcp_tunnels.sh Alice Mikityanska
2026-08-22 12:03 ` [PATCH net v2 4/4] selftests: net: Fix slow configurations " Alice Mikityanska
2026-08-24 8:01 ` [PATCH net v2 0/4] Improve stability of big_tcp_tunnels.sh selftest Matthieu Baerts
2026-08-25 13:21 ` Paolo Abeni
2026-08-25 14:53 ` Matthieu Baerts
2026-08-27 16:10 ` patchwork-bot+netdevbpf
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