Re: [Xen-users] PVM + Network Interface

[Diogo Borsoi <diogoborsoi@xxxxxxxxx>]

Ian,

I tested the bandwidth (download / upload) with iperf and everything seems OK.


------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to nfs01, TCP port 5001
TCP window size:Â 213 KByte (default)
------------------------------------------------------------
[Â 3] local 172.31.0.102 port 32795 connected with 172.31.0.116 port 5001
[ ID] IntervalÂÂÂÂÂÂ TransferÂÂÂÂ Bandwidth
[Â 3]Â 0.0- 1.0 secÂÂ 112 MBytesÂÂ 938 Mbits/sec
[Â 3]Â 1.0- 2.0 secÂÂ 111 MBytesÂÂ 932 Mbits/sec
[Â 3]Â 2.0- 3.0 secÂÂ 111 MBytesÂÂ 933 Mbits/sec
[Â 3]Â 3.0- 4.0 secÂÂ 111 MBytesÂÂ 929 Mbits/sec
[Â 3]Â 4.0- 5.0 secÂÂ 110 MBytesÂÂ 927 Mbits/sec
[Â 3]Â 5.0- 6.0 secÂÂ 110 MBytesÂÂ 920 Mbits/sec
[Â 3]Â 6.0- 7.0 secÂÂ 107 MBytesÂÂ 900 Mbits/sec
[Â 3]Â 7.0- 8.0 secÂÂ 110 MBytesÂÂ 924 Mbits/sec
[Â 3]Â 8.0- 9.0 secÂÂ 110 MBytesÂÂ 924 Mbits/sec
[Â 3]Â 9.0-10.0 secÂÂ 111 MBytesÂÂ 928 Mbits/sec
[ 3] 0.0-10.0 sec 1.08 GBytes 925 Mbits/sec
[Â 5] local 172.31.0.102 port 5001 connected with 172.31.0.116 port 58243
[Â 5]Â 0.0- 1.0 secÂÂ 105 MBytesÂÂ 877 Mbits/sec
[Â 5]Â 1.0- 2.0 secÂÂ 104 MBytesÂÂ 875 Mbits/sec
[Â 5]Â 2.0- 3.0 secÂÂ 104 MBytesÂÂ 872 Mbits/sec
[Â 5]Â 3.0- 4.0 secÂÂ 104 MBytesÂÂ 871 Mbits/sec
[Â 5]Â 4.0- 5.0 secÂÂ 104 MBytesÂÂ 874 Mbits/sec
[Â 5]Â 5.0- 6.0 secÂÂ 104 MBytesÂÂ 869 Mbits/sec
[Â 5]Â 6.0- 7.0 secÂÂ 104 MBytesÂÂ 868 Mbits/sec
[Â 5]Â 7.0- 8.0 secÂÂ 104 MBytesÂÂ 873 Mbits/sec
[Â 5]Â 8.0- 9.0 secÂÂ 104 MBytesÂÂ 872 Mbits/sec
[Â 5]Â 9.0-10.0 secÂÂ 104 MBytesÂÂ 871 Mbits/sec
[ 5] 0.0-10.0 sec 1.02 GBytes 872 Mbits/sec

Now, I'll check out why rsync is less than 100Mb/s.

Thank's very much for the help me.

Diogo

On Thu, Oct 30, 2014 at 12:23 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

It would be best to check the raw bandwidth with iperf or something
similar, rsync could easily be bound by other factors, CPU, memory, disk
etc.

On Wed, 2014-10-29 at 14:20 -0200, Diogo Borsoi wrote:
> Ian,
>
>
> The output of command is:
>
> driver: vif
> version:
> firmware-version:
> bus-info: vif-0
> supports-statistics: no
> supports-test: no
> supports-eeprom-access: no
> supports-register-dump: no
> supports-priv-flags: no
>
>
> But, the transfer not more than this (rsync output):
>
> sent 4.46M bytes received 101.66G bytes 12.11M bytes/sec
>
>
>
> Thanks,
> Diogo
>
>
> On Wed, Oct 29, 2014 at 12:38 PM, Ian Campbell
> <Ian.Campbell@xxxxxxxxxx> wrote:
>Â Â Â Â ÂI think "ethtool -i eth0" will tell you which driver is being
>Â Â Â Â Âused. If
>Â Â Â Â Âit is "xenvif" or anything like that then it is PV, if it is
>Â Â Â Â Âe1000 or
>Â Â Â Â Ârtl81?? etc then it is emulated.
>
>Â Â Â Â ÂYou might also want to check the wiki e.g.
>Â Â Â Â Âhttp://wiki.xen.org/wiki/Xen_Linux_PV_on_HVM_drivers
>Â Â Â Â Âhttp://wiki.xen.org/wiki/PV_on_HVM
>Â Â Â Â Âhttp://wiki.xen.org/wiki/Using_Xen_PV_Drivers_on_HVM_Guest
>
>
>
>Â Â Â Â Â On Wed, 2014-10-29 at 08:48 -0200, Diogo Borsoi wrote:
>Â Â Â Â Â> Ian,
>Â Â Â Â Â>
>Â Â Â Â Â>
>Â Â Â Â Â> Please, how to check this?
>Â Â Â Â Â>
>Â Â Â Â Â>
>Â Â Â Â Â> Diogo
>Â Â Â Â Â>
>Â Â Â Â Â>
>Â Â Â Â Â> On Wed, Oct 29, 2014 at 7:05 AM, Ian Campbell
>Â Â Â Â Â> <Ian.Campbell@xxxxxxxxxx> wrote:
>Â Â Â Â Â>Â Â Â Â ÂAre you sure you are using a PV network interface,
>Â Â Â Â Ârather than
>Â Â Â Â Â>Â Â Â Â Âan
>Â Â Â Â Â>Â Â Â Â Âemulated one?
>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â ÂIan.
>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â ÂOn Wed, 2014-10-29 at 00:18 -0200, Diogo Borsoi
>Â Â Â Â Âwrote:
>Â Â Â Â Â>Â Â Â Â Â> Thanks Ian,
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â> I can't transfer more than ~75Mb/s.
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â> Em 27/10/2014 12:19, "Ian Campbell"
>Â Â Â Â Â>Â Â Â Â Â<Ian.Campbell@xxxxxxxxxx>
>Â Â Â Â Â>Â Â Â Â Â> escreveu:
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â ÂOn Mon, 2014-10-27 at 11:15 -0200, Diogo
>Â Â Â Â ÂBorsoi
>Â Â Â Â Â>Â Â Â Â Âwrote:
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Â> Could help me with this question?
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â ÂI'm not sure what the question actually
>Â Â Â Â Âwas, but
>Â Â Â Â Â>Â Â Â Â ÂI'll just
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Âpoint out
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Âthat the notional speed reported by the PV
>Â Â Â Â ÂEthernet
>Â Â Â Â Â>Â Â Â Â Âdevice
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Âwithin the
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Âguest has nothing to do with bandwidth
>Â Â Â Â Âwhich is
>Â Â Â Â Â>Â Â Â Â Âactually
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Âavailable,
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â Âwe're just obliged to put something in
>Â Â Â Â Âthat field...
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â>Â Â Â Â ÂIan.
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â>
>Â Â Â Â Â>
>Â Â Â Â Â>Â Â Â Â Â> _______________________________________________
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>Â Â Â Â Â>
>Â Â Â Â Â>
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