With a recent 5.15 kernel, passing a huge window size to iperf3 with
lower MTUs makes iperf3 stop sending packets after a few seconds --
I haven't investigated this in detail, but the window size will be
adjusted dynamically anyway and not passing it doesn't actually
affect throughput, so simply drop the option.
Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com>
---
test/perf/passt_tcp | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/test/perf/passt_tcp b/test/perf/passt_tcp
index 0db12ea..99d8fb1 100644
--- a/test/perf/passt_tcp
+++ b/test/perf/passt_tcp
@@ -141,19 +141,19 @@ tr TCP throughput over IPv6: host to guest
bw -
bw -
ns ip link set dev lo mtu 1280
-iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__ -w 4M
+iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 1.0 1.2
ns ip link set dev lo mtu 1500
-iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__ -w 4M
+iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 2.0 3.0
ns ip link set dev lo mtu 9000
-iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__ -w 8M
+iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 5.0 6.0
ns ip link set dev lo mtu 65520
-iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__ -w 16M
+iperf3c ns ::1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 6.0 6.8
ns ip link set dev lo mtu 65535
@@ -181,28 +181,28 @@ lat __LAT__ 500 350
tr TCP throughput over IPv4: host to guest
ns ip link set dev lo mtu 256
-iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__ -w 1M
+iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 0.3 0.5
ns ip link set dev lo mtu 576
-iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__ -w 1M
+iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 0.5 1.0
ns ip link set dev lo mtu 1280
ns ip addr add ::1 dev lo
-iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__ -w 4M
+iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 2.0 3.0
ns ip link set dev lo mtu 1500
-iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__ -w 4M
+iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 2.0 3.0
ns ip link set dev lo mtu 9000
-iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__ -w 8M
+iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 5.0 6.0
ns ip link set dev lo mtu 65520
-iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__ -w 16M
+iperf3c ns 127.0.0.1 100${i}1 __THREADS__ __OPTS__
iperf3s BW guest 100${i}1 __THREADS__
bw __BW__ 6.0 6.8
ns ip link set dev lo mtu 65535
--
2.34.1