Very slow and inconsistent internal network speed (between, VM's on the same host) for FreeBSD 11.0+ as guest on, XCP-ng/XenServer
Christian M
christian.marcos at gmail.com
Wed Jun 26 10:44:25 UTC 2019
Sorry to say, but no. Nothing changed :(
The iperf issue concerns me a bit also:
root@:/usr/home/asdf # iperf3 -c 172.31.16.126
iperf3: error - unable to receive control message: Connection reset by peer
root@:/usr/home/asdf # iperf3 -c 172.31.16.126
Connecting to host 172.31.16.126, port 5201
iperf3: error - unable to initialize stream: Socket is not connected
root@:/usr/home/asdf # iperf3 -c 172.31.16.126
^C- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
iperf3: interrupt - the client has terminated
root@:/usr/home/asdf # iperf3 -c 172.31.16.126
Connecting to host 172.31.16.126, port 5201
[ 5] local 172.31.16.125 port 23884 connected to 172.31.16.126 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 6.00 MBytes 50.2 Mbits/sec 217 1.43 KBytes
[ 5] 1.00-2.00 sec 26.7 MBytes 224 Mbits/sec 566 1.43 KBytes
[ 5] 2.00-3.00 sec 15.6 MBytes 131 Mbits/sec 445 1.43 KBytes
[ 5] 3.00-4.00 sec 13.5 MBytes 113 Mbits/sec 453 1.43 KBytes
[ 5] 4.00-5.00 sec 13.7 MBytes 115 Mbits/sec 512 1.43 KBytes
[ 5] 5.00-6.00 sec 6.51 MBytes 54.6 Mbits/sec 201 1.43 KBytes
[ 5] 6.00-7.00 sec 13.5 MBytes 114 Mbits/sec 366 1.43 KBytes
[ 5] 7.00-8.00 sec 16.9 MBytes 142 Mbits/sec 325 1.43 KBytes
[ 5] 8.00-9.00 sec 24.2 MBytes 203 Mbits/sec 275 1.43 KBytes
[ 5] 9.00-10.00 sec 38.8 MBytes 325 Mbits/sec 277 1.43 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 175 MBytes 147 Mbits/sec 3637
sender
[ 5] 0.00-10.00 sec 175 MBytes 147 Mbits/sec
receiver
iperf Done.
root@:/usr/home/asdf # iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
iperf3: error - unable to receive parameters from client: Connection reset
by peer
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 172.31.16.125, port 21052
^Ciperf3: interrupt - the server has terminated
root@:/usr/home/asdf # iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 172.31.16.125, port 29365
[ 5] local 172.31.16.126 port 5201 connected to 172.31.16.125 port 23884
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 5.85 MBytes 49.0 Mbits/sec
[ 5] 1.00-2.00 sec 26.6 MBytes 223 Mbits/sec
[ 5] 2.00-3.00 sec 15.6 MBytes 131 Mbits/sec
[ 5] 3.00-4.00 sec 13.5 MBytes 113 Mbits/sec
[ 5] 4.00-5.00 sec 13.7 MBytes 115 Mbits/sec
[ 5] 5.00-6.00 sec 6.51 MBytes 54.6 Mbits/sec
[ 5] 6.00-7.00 sec 13.5 MBytes 114 Mbits/sec
[ 5] 7.00-8.00 sec 16.9 MBytes 142 Mbits/sec
[ 5] 8.00-9.00 sec 24.1 MBytes 202 Mbits/sec
[ 5] 9.00-10.00 sec 38.8 MBytes 325 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 175 MBytes 147 Mbits/sec
receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Den ons 26 juni 2019 kl 12:36 skrev Eugene Grosbein <eugen at grosbein.net>:
> 26.06.2019 17:26, Christian M wrote:
>
> > I ran ifconfig xn0 -txcsum on both test VM's, and all incorrect checksum
> disappeared.
>
> [skip]
>
> Data looks good. Did it run better this time?
>
>
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