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authorMatthieu Baerts <matthieu.baerts@tessares.net>2022-11-16 01:10:46 +0300
committerJakub Kicinski <kuba@kernel.org>2022-11-18 08:43:58 +0300
commit3de88b95c4d436d78afc0266a0bed76c35ddeb62 (patch)
treed50730a7452e89519a4a178de6ba251b8aff20ee /tools/testing
parent7e68d31020f18f8d695d5f143fc16cdaa96166cb (diff)
downloadlinux-3de88b95c4d436d78afc0266a0bed76c35ddeb62.tar.xz
selftests: mptcp: fix mibit vs mbit mix up
The estimated time was supposing the rate was expressed in mibit (bit * 1024^2) but it is in mbit (bit * 1000^2). This makes the threshold higher but in a more realistic way to avoid false positives reported by CI instances. Before this patch, the thresholds were at 7561/4005ms and now they are at 7906/4178ms. While at it, also fix a typo in the linked comment, spotted by Mat. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/310 Fixes: 1a418cb8e888 ("mptcp: simult flow self-tests") Suggested-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing')
-rwxr-xr-xtools/testing/selftests/net/mptcp/simult_flows.sh5
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
index ffa13a957a36..40aeb5a71a2a 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -247,9 +247,10 @@ run_test()
tc -n $ns2 qdisc add dev ns2eth1 root netem rate ${rate1}mbit $delay1
tc -n $ns2 qdisc add dev ns2eth2 root netem rate ${rate2}mbit $delay2
- # time is measured in ms, account for transfer size, affegated link speed
+ # time is measured in ms, account for transfer size, aggregated link speed
# and header overhead (10%)
- local time=$((size * 8 * 1000 * 10 / (( $rate1 + $rate2) * 1024 *1024 * 9) ))
+ # ms byte -> bit 10% mbit -> kbit -> bit 10%
+ local time=$((1000 * size * 8 * 10 / ((rate1 + rate2) * 1000 * 1000 * 9) ))
# mptcp_connect will do some sleeps to allow the mp_join handshake
# completion (see mptcp_connect): 200ms on each side, add some slack