Hi Pramod,
RPS on pkt2 is a performance optimization to use multiple CPU cores in the
vrouter receive path. This hasn’t been tried on virtualbox until now to my
knowledge and I’m not sure if it would have a significant impact in this
scenario. There should be functionality issues if rps_cpus is not set.
Raja
From: Dev
<[email protected]<mailto:[email protected]>>
on behalf of pramod v <[email protected]<mailto:[email protected]>>
Date: Monday, October 26, 2015 at 12:09 PM
To: Anand H Krishnan <[email protected]<mailto:[email protected]>>
Cc: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Re: [opencontrail-dev] Issues in Host connectivity when running
contrail vrouter on virtualbox
Hi Anand,
I am still seeing the issue after i applied the patch. The moment the script
writes rps_cpu value , vhost0 loses connectivity.
Regards,
Pramod.V
On Mon, Oct 26, 2015 at 3:38 PM, pramod v
<[email protected]<mailto:[email protected]>> wrote:
Hi Anand,
We are currently using Contrail v2.1 on 3.13.0-65 on virtualbox, whereas on BM
we are using v2.1 on 3.13.0-63 (here it works fine, without the necessary patch)
I will apply the patch and let you know in virtualbox.
Regards,
Pramod.V
On Mon, Oct 26, 2015 at 3:17 PM, Anand H Krishnan
<[email protected]<mailto:[email protected]>> wrote:
Which contrail version are you using?
There is a known issue in ubuntu with kernels equal to above 3.13.0-63. You
can look at
https://github.com/Juniper/contrail-packaging/commit/c26b0a9d1ad46186a28c6b60ae1b2efd42a6040d
[https://avatars3.githubusercontent.com/u/6039551?v=3&s=200]<https://github.com/Juniper/contrail-packaging/commit/c26b0a9d1ad46186a28c6b60ae1b2efd42a6040d>
Explicitly bring up the interfaces used for RPS/GRO ·
Juniper/contrail-packaging@c26b0a9
In the ubuntu version of 3.13.0 (-63, onwards), packets are dropped by the
kernel if the incoming interface is not up (a possibility with virtual
interfaces). So, explicitly bring those interfaces ...
Read
more...<https://github.com/Juniper/contrail-packaging/commit/c26b0a9d1ad46186a28c6b60ae1b2efd42a6040d>
Thanks,
Anand
________________________________
From: Dev
<[email protected]<mailto:[email protected]>>
on behalf of pramod v <[email protected]<mailto:[email protected]>>
Sent: Monday, October 26, 2015 11:24 AM
To: [email protected]<mailto:[email protected]>
Subject: [opencontrail-dev] Issues in Host connectivity when running contrail
vrouter on virtualbox
Hi All,
We are running a contrail setup using vagrant with virtualbox as the hypervisor.
In a compute node running contrail vrouter , we see the node losing host
connectivity after vrouter kernal module is inserted and the vhost0 is up.
We use the script if-vhost0 , which calls vrouter-functions.sh to insert the
vrouter kernal module and configure pkt1 and pkt2 interfaces.
After debugging we found that the issue is caused when the vrouter-functions.sh
changes the rps settings in pkt2 queues.
We see this behaviour only in virtualbox. Is this a known issue , also what is
the impact if we disable setting of rps in pkt2
Regards,
Pramod.V
Manager,
Reliance Jio Infocomm Ltd
--
Pramod.V
Manager,
Reliance Jio Infocomm Ltd
--
Pramod.V
Manager,
Reliance Jio Infocomm Ltd
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