[prev in list] [next in list] [prev in thread] [next in thread] 

List:       openvswitch-discuss
Subject:    [ovs-discuss] ovs dpdk low performance despite optimizations
From:       kevin.traynor () intel ! com (Traynor, Kevin)
Date:       2015-10-27 14:25:02
Message-ID: BC0FEEC7D7650749874CEC11314A88F7452AE36C () IRSMSX104 ! ger ! corp ! intel ! com
[Download RAW message or body]


> -----Original Message-----
> From: discuss [mailto:discuss-bounces at openvswitch.org] On Behalf Of Benedikt
> Rudolph
> Sent: Tuesday, October 27, 2015 12:14 PM
> To: discuss at openvswitch.com
> Subject: Re: [ovs-discuss] ovs dpdk low performance despite optimizations
> 
> Hi list, hi Mr. Traynor,
> 
> On 22.10.15 11:48, Traynor, Kevin wrote:
> > Did you catch the updates to that section on the mainline that were
> > not in the OVS 2.4 package?
> > https://github.com/openvswitch/ovs/blob/master/INSTALL.DPDK.md#performance-
> tuning
> 
> Yep, I looked at the most recent version on github and noticed the
> cleanup in the Performance Tuning section.
> > I see the same, so not causing your poor performance.
> Do you have any numbers of which level of performance can be expected
> for the described setup? Theoretical max. for 64 Byte packets is around
> 14 Mpps. Has anybody observed performance close to this in OpenvSwitch
> using DPDK?
> We were able to get around 14 Mpps using the l2fwd example app from dpdk.

hi, I think you should be able to hit line rate for a phy-phy test with 1 PMD
depending on what processor you are using. I would stick to 1 PMD and 1 rxq for
debugging - increasing may help mitigate any issue, but will make it harder to
debug. 

What rules are you installing? also what processor are you using? Is the PMD
getting ~100% of a core or is there something else running - you can check
with top -H

> 
> We also re-tested our setup with OVS master (from github) and DPDK 2.1
> and found no difference to the results described in my first posting.
> _______________________________________________
> discuss mailing list
> discuss at openvswitch.org
> http://openvswitch.org/mailman/listinfo/discuss

[prev in list] [next in list] [prev in thread] [next in thread]