[ovirt-users] Network Performance

Juan Pablo pablo.localhost at gmail.com
Wed May 10 19:26:44 UTC 2017


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.
>>
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
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