Hi all
I am facing a wierd situation when i start testpmd app inside two VMs( Case 3 ).
Please see the following setup.
Hardware Information
System
Dell Inc. PowerEdge R630
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BIOS
Dell Inc. version1.0.4
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CPU
Intel(R) Xeon(R) x86_64 E5-2630 v3 2.40 Ghz
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Processor(s): 16
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Cache: 20480 KB
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Memory
Size: 16 GB*6
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Type: DDR4
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Speed: 2133MHz
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Ethernet Controller
Intel Corporation Ethernet 10G 2P X520 Adapter *2
Software information
Qemu = qemu-2.5.1.1
DPDK = dpdk-2.2.0
OVS = ovs-branch-2.5
Input stream : 10Gbps(5G with vlan 1001 and 5G with vlan 1002) which is
generated by Spirent testcenter
| VM1 | | VM2 |
?1001? ?1002?
-----------------------
| OVS |
-----------------------
? ?
-----------------------
TestCenter |
-----------------------
ovs setup:
modprobe openvswitch
rm -rf /usr/local/var/run/openvswitch/*
rm -rf /opt/ovs-vswitchd.log
modprobe uio
insmod $DPDK_BUILD/kmod/igb_uio.ko
$DPDK_DIR/tools/dpdk_nic_bind.py --bind=igb_uio p3p1
$DPDK_DIR/tools/dpdk_nic_bind.py --bind=igb_uio p3p2
$DPDK_DIR/tools/dpdk_nic_bind.py --status
rm /usr/local/etc/openvswitch/conf.db -rf
mkdir -p /usr/local/etc/openvswitch
mkdir -p /usr/local/var/run/openvswitch
cd $OVS_DIR
./ovsdb/ovsdb-tool create /usr/local/etc/openvswitch/conf.db
./vswitchd/vswitch.ovsschema
./ovsdb/ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock
--remote=db:Open_vSwitch,Open_vSwitch,manager_options
--private-key=db:Open_vSwitch,SSL,private_key
--certificate=db:Open_vSwitch,SSL,certificate
--bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert --pidfile --detach
./utilities/ovs-vsctl --no-wait init
./utilities/ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-init=true
./vswitchd/ovs-vswitchd --dpdk --socket-mem 4096,4096 -n 4 --
unix:/usr/local/var/run/openvswitch/db.sock --log-file=$OVS_LOG --pidfile
--detach
Case 1:
VM1 start testpmd, fwd = iofwd
VM2 start testpmd,fwd = iofwd
Result = Spirent testcenter show output stream is reaching line speed 10G.
Case 2:
VM1 testpmd = started, fwd = iofwd
VM2 testpmd=stopped,fwd = none
Result = Spirent testcenter show output stream is reaching 5G.
Which is reasonable.
Case 3:
VM1 testpmd = started, fwd = iofwd
VM2 testpmd = started ,fwd = none
Result = Spirent testcenter show output stream is less than 200Mbps.
I am confused about the case 3. What is the reason VM2 effects VM1 so
significantly?
How can i solve such problem? I will appreciate for your answer.
Thx
============================
??? Kai-Mao Cheng
??????? ??????? 231??
??:03-4244093 ??:0912314847
E-mail:kmcheng at cht.com.tw
============================
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