[ovirt-users] Network Performance

[Bryan Sockel]

About what i would expect to see:

[  3] local 10.20.101.207 port 43688 connected with 10.20.101.181 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   979 MBytes   820 Mbits/sec


-----Original Message-----
From: Juan Pablo <pablo.localhost at gmail.com>
To: Bryan Sockel <Bryan.Sockel at altn.com>
Cc: users <users at ovirt.org>
Date: Wed, 10 May 2017 16:26:44 -0300
Subject: Re: [ovirt-users] Network Performance

ok, so those numbers are not bad. just to check, can you please verify same 
test from x server to vm? (server different than host vm please ).

regards,
JP

2017-05-10 16:21 GMT-03:00 Bryan Sockel <Bryan.Sockel at altn.com>:
Hi Juan,

Currently we are seeing the lag/delay in the VM's. The slowness comes from 
when we access applications from the network vs. locally.  For instance 
Putty opens quickly when run locally, but when run from the network it may 
take a minute or so to launch.

I am watching the Nload graph on the physical server and not seeing 
any/minimal traffic go out on the vlan the vm is running on.

Currently my bonding options are setup as follows:

BONDING_OPTS='mode=4 miimon=1'

I will be changing the options to:
mode=4 miimon=100 xmit_hash_policy=2



Iperf Host to host before Bonding Options change
[  4] local 10.20.101.181 port 5001 connected with 10.20.101.183 port 54892
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-10.0 sec  1.09 GBytes   935 Mbits/sec

Host to vm Before Bonding Options Change
------------------------------------------------------------
[  3] local 10.20.101.207 port 33142 connected with 10.20.101.181 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  23.6 GBytes  20.2 Gbits/sec

Host to Gluster Servers

[  5] local 10.20.101.181 port 5001 connected with 10.20.101.185 port 51588
[  5]  0.0-10.0 sec  1.07 GBytes   915 Mbits/sec
[  4] local 10.20.101.181 port 5001 connected with 10.20.101.187 port 45548
[  4]  0.0-10.0 sec   946 MBytes   790 Mbits/sec


After Bonding Changes:

Host to Host
[  3] local 10.20.101.183 port 57656 connected with 10.20.101.181 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  1.04 GBytes   897 Mbits/sec

Host to VM

[  3] local 10.20.101.207 port 43686 connected with 10.20.101.181 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  26.2 GBytes  22.5 Gbits/sec

Host to Storage
[  3] local 10.20.101.185 port 51590 connected with 10.20.101.181 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  1.02 GBytes   876 Mbits/sec


VM was running on the same host i was testing the performance against.


After further testing and investigation i have noticed that Kaspersky AV 
maybe the main factor.  

Thanks


-----Original Message-----
From: Juan Pablo <pablo.localhost at gmail.com>
To: Bryan Sockel <Bryan.Sockel at altn.com>
Cc: "users at ovirt.org" <users at ovirt.org>
Date: Wed, 10 May 2017 14:14:13 -0300
Subject: Re: [ovirt-users] Network Performance

Bryan, could you please elaborate your setup? do you see lag on your 
virt-host or in your VM's? what have you tried so far to test? can you 
please run:
"iperf -s" on your server (or where do you see lagg)
and "iperf -c $serveripaddress" replace $serveripaddress with your interface 
IP.
and paste your output?
can you also descrie if this is a layer2 or layer 3 network?

regards,
JP

2017-05-10 13:05 GMT-03:00 Bryan Sockel <Bryan.Sockel at altn.com>:
I am doing some testing with our current ovirt setup and i am seeing some 
lagging going on when i attempt to launch or access files from a network 
share, or even run windows updates.  

My current setup is 4 X 1 GB Nic bond with multiple Vlan's attached.  Server 
usage is currently low. I have also not setup any additional Network QoS and 
everything else is set to default.




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