| Message ID | bffec2beab3a5672dd13ecabe4fad81d2155b367.1706206101.git.pabeni@redhat.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 89abe628375301fedb68770644df845d49018d8b |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net] selftests: net: give more time for GRO aggregation | expand |
On Thu, Jan 25, 2024 at 7:09 PM Paolo Abeni <pabeni@redhat.com> wrote: > > The gro.sh test-case relay on the gro_flush_timeout to ensure > that all the segments belonging to any given batch are properly > aggregated. > > The other end, the sender is a user-space program transmitting > each packet with a separate write syscall. A busy host and/or > stracing the sender program can make the relevant segments reach > the GRO engine after the flush timeout triggers. > > Give the GRO flush timeout more slack, to avoid sporadic self-tests > failures. > > Fixes: 9af771d2ec04 ("selftests/net: allow GRO coalesce test on veth") > Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Tested-by: Eric Dumazet <edumazet@google.com>
Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski <kuba@kernel.org>: On Thu, 25 Jan 2024 19:09:06 +0100 you wrote: > The gro.sh test-case relay on the gro_flush_timeout to ensure > that all the segments belonging to any given batch are properly > aggregated. > > The other end, the sender is a user-space program transmitting > each packet with a separate write syscall. A busy host and/or > stracing the sender program can make the relevant segments reach > the GRO engine after the flush timeout triggers. > > [...] Here is the summary with links: - [net] selftests: net: give more time for GRO aggregation https://git.kernel.org/netdev/net/c/89abe6283753 You are awesome, thank you!
diff --git a/tools/testing/selftests/net/setup_veth.sh b/tools/testing/selftests/net/setup_veth.sh index a9a1759e035c..1f78a87f6f37 100644 --- a/tools/testing/selftests/net/setup_veth.sh +++ b/tools/testing/selftests/net/setup_veth.sh @@ -11,7 +11,7 @@ setup_veth_ns() { local -r ns_mac="$4" [[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}" - echo 100000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" + echo 1000000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535 ip -netns "${ns_name}" link set dev "${ns_dev}" up
The gro.sh test-case relay on the gro_flush_timeout to ensure that all the segments belonging to any given batch are properly aggregated. The other end, the sender is a user-space program transmitting each packet with a separate write syscall. A busy host and/or stracing the sender program can make the relevant segments reach the GRO engine after the flush timeout triggers. Give the GRO flush timeout more slack, to avoid sporadic self-tests failures. Fixes: 9af771d2ec04 ("selftests/net: allow GRO coalesce test on veth") Signed-off-by: Paolo Abeni <pabeni@redhat.com> --- tools/testing/selftests/net/setup_veth.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)