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

-----Original Message-----
From: Juan Pablo <pablo.localhost@gmail.com>
To: Bryan Sockel <Bryan.Sockel@altn.com>
Cc: "users@ovirt.org" <users@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@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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