I didn't have time to investigate the root cause for the virtio_net
TX hang yet. Add a quick work-around for the moment being.
Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com>
---
test/perf/passt_tcp | 15 +++++++++++++++
test/perf/passt_udp | 15 +++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/test/perf/passt_tcp b/test/perf/passt_tcp
index 99d8fb1..f13fdfc 100644
--- a/test/perf/passt_tcp
+++ b/test/perf/passt_tcp
@@ -16,6 +16,11 @@ gtools sysctl ip jq nproc seq sleep bc iperf3 tcp_rr tcp_crr # From
neper
nstools sysctl ip jq nproc seq sleep bc iperf3 tcp_rr tcp_crr
htools bc head sed seq
+# In this setup, virtio_net TX queue sometimes hangs, still under investigation
+def virtio_net_workaround
+guest modprobe -r virtio_net; modprobe virtio_net napi_tx=1; dhclient; dhclient -6; sleep
3
+endef
+
test passt: throughput and latency
guest /sbin/sysctl -w net.core.rmem_max=536870912
@@ -52,18 +57,22 @@ tr TCP throughput over IPv6: guest to host
bw -
bw -
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1280
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -w 4M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 1.2 1.5
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1500
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -w 4M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 1.6 1.8
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 9000
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -w 8M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 4.0 5.0
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 65520
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -w 16M
iperf3s BW ns 100${i}2 __THREADS__
@@ -91,26 +100,32 @@ lat __LAT__ 500 400
tr TCP throughput over IPv4: guest to host
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 256
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -w 1M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 0.2 0.3
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 576
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -w 1M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 0.5 0.8
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1280
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -w 4M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 1.2 1.5
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1500
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -w 4M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 1.6 1.8
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 9000
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -w 8M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 4.0 5.0
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 65520
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -w 16M
iperf3s BW ns 100${i}2 __THREADS__
diff --git a/test/perf/passt_udp b/test/perf/passt_udp
index ff4c73a..cc5711b 100644
--- a/test/perf/passt_udp
+++ b/test/perf/passt_udp
@@ -16,6 +16,11 @@ gtools sysctl ip jq nproc sleep iperf3 udp_rr # From neper
nstools ip jq sleep iperf3 udp_rr
htools bc head sed
+# In this setup, virtio_net TX queue sometimes hangs, still under investigation
+def virtio_net_workaround
+guest modprobe -r virtio_net; modprobe virtio_net napi_tx=1; dhclient; dhclient -6; sleep
3
+endef
+
test passt: throughput and latency
guest /sbin/sysctl -w net.core.rmem_max=16777216
@@ -45,18 +50,22 @@ th MTU 256B 576B 1280B 1500B 9000B 65520B
tr UDP throughput over IPv6: guest to host
bw -
bw -
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1280
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -b 2G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 0.8 1.2
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1500
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -b 3G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 1.0 1.5
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 9000
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -b 5G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 4.0 5.0
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 65520
iperf3c guest __GW6__%__IFNAME__ 100${i}2 __THREADS__ __OPTS__ -b 7G
iperf3s BW ns 100${i}2 __THREADS__
@@ -74,26 +83,32 @@ lat __LAT__ 200 150
tr UDP throughput over IPv4: guest to host
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 256
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -b 500M
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 0.0 0.0
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 576
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -b 1G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 0.4 0.6
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1280
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -b 2G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 0.8 1.2
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 1500
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -b 3G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 1.0 1.5
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 9000
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -b 6G
iperf3s BW ns 100${i}2 __THREADS__
bw __BW__ 4.0 5.0
+virtio_net_workaround
guest ip link set dev __IFNAME__ mtu 65520
iperf3c guest __GW__ 100${i}2 __THREADS__ __OPTS__ -b 7G
iperf3s BW ns 100${i}2 __THREADS__
--
2.35.1