docs/report/vpp_performance_tests/packet_latency_graphs/vm_vhost.rst

   1 VM vhost Connections
   2 ====================
   3
   4 This section provides a summary of VPP Phy-to-VM-to-Phy VM vhost-user
   5 performance illustrating packet latency measured at 50% of discovered NDR
   6 throughput rate. Latency is reported for VPP running in multiple
   7 configurations of VPP worker thread(s), a.k.a. VPP data plane thread (s), and
   8 their physical CPU core(s) placement.
   9
  10 *Title of each graph* is a regex (regular expression) matching all plotted
  11 latency test cases, *X-axis labels* are indeces of csit-vpp-perf-1704 jobs
  12 that created result output files used as data sources for the graph,
  13 *Y-axis labels* are measured packet Latency [uSec] values, and the *graph
  14 legend* identifes the plotted test suites.
  15
  16 .. note::
  17
  18     Data sources for reported test results: i) FD.io test executor jobs
  19     `csit-vpp-perf-1704-all
  20     <https://jenkins.fd.io/view/csit/job/csit-vpp-perf-1704-all/>`_ ,
  21     ii) archived FD.io jobs test result `output files
  22     <../../_static/archive/>`_.
  23
  24 VPP packet latency - running in configuration of **one worker thread (1t) on one
  25 physical core (1c)** - is presented in the figure below.
  26
  27 .. raw:: html
  28
  29     <iframe width="700" height="1000" frameborder="0" scrolling="no" src="../../_static/vpp/64B-1t1c-vhost-ndrdisc-lat50.html"></iframe>
  30
  31 *Figure 1. VPP 1thread 1core - packet latency for Phy-to-VM-to-Phy VM vhost-user.*
  32
  33 CSIT test cases used to generate results presented above can be found in CSIT
  34 git repository by filtering with specified regex as follows:
  35
  36 .. code-block:: bash
  37
  38     $ csit/tests/perf
  39     $ grep -E "64B-1t1c-.*vhost.*-ndrdisc" *
  40
  41     10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  42     10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
  43     10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc
  44     10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  45     10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  46     10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
  47     10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  48     40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  49
  50 VPP packet latency - running in configuration of **two worker threads (2t) on two
  51 physical cores (2c)** - is presented in the figure below.
  52
  53 .. raw:: html
  54
  55     <iframe width="700" height="1000" frameborder="0" scrolling="no" src="../../_static/vpp/64B-2t2c-vhost-ndrdisc-lat50.html"></iframe>
  56
  57 *Figure 2. VPP 2threads 2cores - packet latency for Phy-to-VM-to-Phy VM vhost-user.*
  58
  59 CSIT test cases used to generate results presented above can be found in CSIT
  60 git repository by filtering with specified regex as follows:
  61
  62 .. code-block:: bash
  63
  64     $ csit/tests/perf
  65     $ grep -E "64B-2t2c-.*vhost.*-ndrdisc" *
  66
  67     10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  68     10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
  69     10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc
  70     10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  71     10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  72     10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
  73     10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  74     40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
  75