github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 09:36:22 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

selftests: mptcp: simult_flows: disable GSO

Browse Source 
Netem is used to apply a rate limit, and its 'limit' option is per
packet.

Disable GSO on both sides to work with packets of a specific size. That
increases the number of packets, but stabilise the throughput. As a
consequence, limits are more adapted, and the bufferbloat is reduced.

Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260527-net-mptcp-sft-bufferbloat-exit-v1-1-9afc4e742090@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Matthieu Baerts (NGI0) 2026-05-27 22:11:34 +10:00 committed by Jakub Kicinski
parent 31eedfbaa2
commit 0f1fd73c22
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
tools/testing/selftests/net/mptcp/simult_flows.sh
View File

@ -76,13 +76,13 @@ setup()
ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth1
ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth1 nodad
ip -net "$ns1" link set ns1eth1 up mtu 1500
ip -net "$ns1" link set ns1eth1 up mtu 1500 gso_max_segs 0
ip -net "$ns1" route add default via 10.0.1.2
ip -net "$ns1" route add default via dead:beef:1::2
ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
ip -net "$ns1" link set ns1eth2 up mtu 1500
ip -net "$ns1" link set ns1eth2 up mtu 1500 gso_max_segs 0
ip -net "$ns1" route add default via 10.0.2.2 metric 101
ip -net "$ns1" route add default via dead:beef:2::2 metric 101
@ -91,21 +91,21 @@ setup()
ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
ip -net "$ns2" link set ns2eth1 up mtu 1500
ip -net "$ns2" link set ns2eth1 up mtu 1500 gso_max_segs 0
ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth2
ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth2 nodad
ip -net "$ns2" link set ns2eth2 up mtu 1500
ip -net "$ns2" link set ns2eth2 up mtu 1500 gso_max_segs 0
ip -net "$ns2" addr add 10.0.3.2/24 dev ns2eth3
ip -net "$ns2" addr add dead:beef:3::2/64 dev ns2eth3 nodad
ip -net "$ns2" link set ns2eth3 up mtu 1500
ip -net "$ns2" link set ns2eth3 up mtu 1500 gso_max_segs 0
ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
ip -net "$ns3" addr add 10.0.3.3/24 dev ns3eth1
ip -net "$ns3" addr add dead:beef:3::3/64 dev ns3eth1 nodad
ip -net "$ns3" link set ns3eth1 up mtu 1500
ip -net "$ns3" link set ns3eth1 up mtu 1500 gso_max_segs 0
ip -net "$ns3" route add default via 10.0.3.2
ip -net "$ns3" route add default via dead:beef:3::2