Thanks Jarno! On Fri, 14 Apr 2017, 2:53 AM Jarno Rajahalme, <ja...@ovn.org> wrote:
> On Apr 12, 2017, at 9:00 PM, Kapil Adhikesavalu <kapil20...@gmail.com> > wrote: > > Hi Jarno, > > That's great! Thanks for the clarification. So, if anything it should only > improve the performance when I move to OVS tree kernel module. > > > Yes, assuming you will be using a recent OVS release rather than an old > one. > > Jarno > > On Thu, 13 Apr 2017, 1:05 AM Jarno Rajahalme, <ja...@ovn.org> wrote: > >> >> > On Apr 12, 2017, at 12:49 AM, Kapil Adhikesavalu <kapil20...@gmail.com> >> wrote: >> > >> > Hi, >> > >> > Is there any performance difference with using the OVS kernel Datapath >> > available part of Linux upstream Vs the module built from Linux OVS >> tree. >> > >> >> OVS tree kernel module has an Exact Match Cache, which generally improves >> performance. Upstream linux openvswitch module does not have it. >> >> > So far i have been using the DP part of the Linux upstream and as NAT >> > feature requires Linux version 4.6, i plan to switch to DP module built >> > from OVS tree. >> > >> > 1. In general is there any performance between using these two ? or >> would >> > it vary based on the features being in use. >> > 2. I am currently using VXLAN and L2 forwarding + NAT(plan to use it), >> > would like to know if there could be any performance difference expected >> > when i switch from upstream DP to KLM. >> > >> > I didn't any specific mention about performance in FAQ - >> > http://docs.openvswitch.org/en/latest/faq/releases/ expect for this >> > statement 'Certain features require kernel support to function or to >> have >> > reasonable performance.’ >> > >> >> This note relates to using OVS with an older (upstream) kernel module. >> While we maintain backwards compatibility, newer features perform better >> with newer kernel module having explicit support for the feature. >> >> Jarno >> >> > Regards >> > Kapil. >> > _______________________________________________ >> > dev mailing list >> > d...@openvswitch.org >> > https://mail.openvswitch.org/mailman/listinfo/ovs-dev >> >> -- > > Regards > Kapil > > > -- Regards Kapil
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