Now I see that the cpu-usage in the VM's is negligible - so I guess it is not TCP offloading issue..
Thank you Steven I think it is because TCP offloading - which cannot be executed by HW (the traffic path traverse only virtual interfaces) I've tested UDP and get ~ 14Gbps throughput As you said - these mentioned optimization techniques won't solve my TCP throughput, also my CPU is quite strong - Intel i7-3930K @3.2 GHz Best Regards Avi > -----Original Message----- > From: Steven Luong (sluong) [mailto:slu...@cisco.com] > Sent: Wednesday, 01 November, 2017 7:14 PM > To: Avi Cohen; vpp-dev@lists.fd.io > Subject: Re: [vpp-dev] VPP low throughput > > Avi, > > You can tune a number of things to get higher throughput > > - Using VPP worker threads > - Up the queue size to 1024 from the default 256 (done via qemu launch) > - Enable multi-queues (done via qemu launch) > - Up the number of streams when invoking iperf3 using –P > > Nevertheless, 10s Mbps is unusually low. I don’t know what hardware you are > using. > > Steven > > On 11/1/17, 8:53 AM, "vpp-dev-boun...@lists.fd.io on behalf of Avi Cohen" > <vpp-dev-boun...@lists.fd.io on behalf of avi.co...@toganetworks.com> > wrote: > > It is my 1st time running a VPP. > My setup is 2 VM's with a vpp in the middle (connected with vhost-user) > as > per - https://wiki.fd.io/view/VPP/Use_VPP_to_connect_VMs_Using_Vhost- > User_Interface > But get a very low throughput with iperf3 - 10s Mbps . any idea ? > VPP is always running with DPDK - correct ? > > Thank you > Avi > > ---------------------------------------------------------------------------------------------------- > --------------------------------------------- > This email and any files transmitted and/or attachments with it are > confidential and proprietary information of > Toga Networks Ltd., and intended solely for the use of the individual or > entity > to whom they are addressed. > If you have received this email in error please notify the system manager. > This message contains confidential > information of Toga Networks Ltd., and is intended only for the individual > named. If you are not the named > addressee you should not disseminate, distribute or copy this e-mail. > Please > notify the sender immediately > by e-mail if you have received this e-mail by mistake and delete this > e-mail > from your system. If you are not > the intended recipient you are notified that disclosing, copying, > distributing > or taking any action in reliance on > the contents of this information is strictly prohibited. > > ---------------------------------------------------------------------------------------------------- > -------------------------------------------- > > _______________________________________________ > vpp-dev mailing list > vpp-dev@lists.fd.io > https://lists.fd.io/mailman/listinfo/vpp-dev > _______________________________________________ vpp-dev mailing list vpp-dev@lists.fd.io https://lists.fd.io/mailman/listinfo/vpp-dev
