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Re: [MirageOS-devel] network performance question
I tried to run iperf on XEN
mirage configure -t xen && make depend && make -j8
sudo xl create iperf_server.xl -c
#
iperf -c 192.168.122.100 -t10
------------------------------------------------------------
Client connecting to 192.168.122.100, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.122.1 port 45946 connected with 192.168.122.100
port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 596 MBytes 500 Mbits/sec
And now I got even worse result. What else could I try/change?
Justin
On 10/24/2017 08:05 AM, Justin Cinkelj
wrote:
KVM is than not optimized (yet). In which setup is expected best
(network) performance? XEN maybe?
Thanks for instruction about manual bridged tap device creation.
BR Justin
On 10/24/2017 04:02 AM, Takayuki
Imada wrote:
Hi,
Network performance on MirageOS Solo5/ukvm is not optimized
yet, but you can try bridged networking by the following:
(I guess you have a bridge device "virbr0" created by
libvirt)
ip
tuntap add tt0 mode tap
ip
link set dev tt0 up
brctl
addif virbr0 tt0
sudo ./ukvm-bin --net=tt0
iperf_server.ukvm
Kind regards
--
Takayuki Imada
Hi
I just tried to compile MirageOS, and wanted to test
networking performance, to compare regular linux/ubuntu
KVM VM vs. mirageOS:
Linux VM has IP 192.168.122.20:
ping 192.168.122.20
PING 192.168.122.20 (192.168.122.20) 56(84) bytes of
data.
64 bytes from 192.168.122.20: icmp_seq=1 ttl=64
time=0.114 ms
...
20 packets transmitted, 20 received, 0% packet loss,
time 19434ms
rtt min/avg/max/mdev = 0.116/0.157/0.193/0.027 ms
mirage VM has IP 192.168.122.100.
ping 192.168.122.100
PING 192.168.122.100 (192.168.122.100) 56(84) bytes of
data.
64 bytes from 192.168.122.100: icmp_seq=1 ttl=38
time=0.090 ms
...
20 packets transmitted, 20 received, 0% packet loss,
time 19490ms
rtt min/avg/max/mdev = 0.087/0.119/0.169/0.021 ms
So here mirage has lower latency, nice :)
But with iperf server on VM, and client on host:
(mirage iperf is from https://github.com/TImada/mirage_iperf)
ubuntu VM:
iperf -c 192.168.122.20 -t10
------------------------------------------------------------
Client connecting to 192.168.122.20, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.122.1 port 52674 connected with
192.168.122.20 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 52.9 GBytes 45.4 Gbits/sec
top:
PID USER PR NI VIRT RES SHR S %CPU
%MEM TIME+ COMMAND
4401 qemu 20 0 6038648 2.309g 22968 S 100.0
7.4 43:24.27 qemu-system-x86
4422 root 20 0 0 0 0 R 83.2
0.0 0:22.90 vhost-4401
24759 justin_+ 20 0 165812 1892 1728 S 51.5
0.0 0:03.91 iperf
mirage VM:
sudo ./ukvm-bin --net=tt0 iperf_server.ukvm
justin_cinkelj@jcpc:~/devel/orange$ iperf -c
192.168.122.100 -t10
------------------------------------------------------------
Client connecting to 192.168.122.100, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.122.101 port 44920 connected with
192.168.122.100 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 2.80 GBytes 2.40 Gbits/sec
top:
PID USER PR NI VIRT RES SHR S %CPU
%MEM TIME+ COMMAND
24788 root 20 0 528708 16148 16064 R 100.0
0.0 0:04.35 ukvm-bin
Now, I guess I'm doing something wrong. I would try
bridged networking with mirage, but I don't know how.
What else could/should I change?
BTW, the tt0 network device was created with:
tunctl -t tt0
ip link set up dev tt0
ip addr add 192.168.122.101/26 dev tt0
Justin
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