Tom, more comments inline. From: Thomas F Herbert [mailto:therb...@redhat.com] Sent: Tuesday, February 28, 2017 12:41 AM To: Zhou, Danny <danny.z...@intel.com>; vpp-dev@lists.fd.io Cc: Karl Rister <kris...@redhat.com>; csit-...@lists.fd.io Subject: Re: [vpp-dev] FW: Re: Interesting perf test results from Red Hat's test team
Hi Danny, My response is inline below. On 02/27/2017 03:01 AM, Zhou, Danny wrote: Hi Tom, Karl, In the last "Todo List" page, there is RFC2544 0% packet loss test item, do you want to measure the min/max latency as well? Is your question particularly about vhost-user testing? Also, I am interested in why you brought up latency. Are you doing your own latency testing in conjunction with your nsh-sfc work and do you think we need to do latency in CSIT as well in testing nsh-sfc perf on vhosts? [Zhou, Danny] No, I am not particularly interested in latency about vhost_user. Instead, as you mentioned I am interested in VPP as well as NSH_SFC latency :). Because during our internal P2P NSH_SFC RFC2544 test without vhost, we observed maximum latency is about 100x more than minimum latency, which looks like critical issue for some use cases that requires real time environment. I would like to know if VPP or DPDK has the similar characteristics, or just because I did not use real time kernel as you guys did. Anyway, look forward your results, in the meantime will share our results once we figure out root cause. I will let Karl answer as to the testing he has done and is doing. However, in fd.io CSIT, the latency for vhost-user results are here: https://docs.fd.io/csit/rls1701/report/vpp_performance_tests/packet_latency_graphs/vm_vhost.html --TFH -Danny From: vpp-dev-boun...@lists.fd.io<mailto:vpp-dev-boun...@lists.fd.io> [mailto:vpp-dev-boun...@lists.fd.io] On Behalf Of Thomas F Herbert Sent: Friday, February 17, 2017 1:55 AM To: vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io> Cc: Karl Rister <kris...@redhat.com><mailto:kris...@redhat.com> Subject: Re: [vpp-dev] FW: Re: Interesting perf test results from Red Hat's test team Jan, I have answered below but am forwarding this to Karl who performed the testing to get the exact answers. --TFH On 02/16/2017 08:59 AM, Jan Scheurich wrote: ____________________________________________ From: Jan Scheurich Sent: Thursday, 16 February, 2017 14:41 To: therb...@redhat.com<mailto:therb...@redhat.com> Cc: vpp-...@fd.io<mailto:vpp-...@fd.io> Subject: Re: [vpp-dev] Interesting perf test results from Red Hat's test team Hi Thomas, Thanks for these interesting measurements. I am not quite sure I fully understand the different configurations and traffic cases you have been testing: * [Zhou, Danny] ToDo you vary the number of vhost-user queues to the guest and/or the number of RX queues for the phy port? These are vhost user queues. Because OVS and/or VPP is running in the host. * Did you add cores at the same time you added queues? Yes * When you say flows, do you mean L3/L4 packet flows (5-tuples) or forwarding rules/flow rules? These are L2 matches. * When you e.g. say N flows (srcip, dstip) do you mean matching on these fields, modifying these fields or both Would it be possible to provide the exact VPP and OVS configurations that were used (ports, queues, cores, ports, forwarding rules/flows)? Thanks, Jan [X] Here are test results on VPP 17.01 compared with OVS/DPDK 2.6/1611 performed by Karl Rister of Red Hat. This is PVP testing with 1, 2 and 3 queues. It is an interesting comparison with the CSIT results. Of particular interest is the drop off on the 3 queue results. --TFH -- *Thomas F Herbert* SDN Group Office of Technology *Red Hat* -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.fd.io/pipermail/vpp-dev/attachments/20170215/83249b21/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: vpp-17.01_vs_ovs-2.6.pdf Type: application/pdf Size: 243918 bytes Desc: not available URL: <http://lists.fd.io/pipermail/vpp-dev/attachments/20170215/83249b21/attachment-0001.pdf> _______________________________________________ vpp-dev mailing list vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io> https://lists.fd.io/mailman/listinfo/vpp-dev -- Thomas F Herbert SDN Group Office of Technology Red Hat -- Thomas F Herbert SDN Group Office of Technology Red Hat
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