X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=docs%2Freport%2Fvpp_performance_tests%2Fcsit_release_notes.rst;h=34d943e0ab81c98031704b441c823abe590cd244;hp=193f685d10e63673e3f9655a2dd1cab69f53e0dd;hb=d8acc8c6a37f5a3aae87dfc642e47058fc4b9a21;hpb=02f2a2176ec92efdf63399fb7dba1eb586465f38 diff --git a/docs/report/vpp_performance_tests/csit_release_notes.rst b/docs/report/vpp_performance_tests/csit_release_notes.rst index 193f685d10..34d943e0ab 100644 --- a/docs/report/vpp_performance_tests/csit_release_notes.rst +++ b/docs/report/vpp_performance_tests/csit_release_notes.rst @@ -1,209 +1,258 @@ CSIT Release Notes ================== -Changes in CSIT |release| - to be updated +Changes in CSIT |release| ------------------------- -#. VPP performance test environment changes +#. Test environment changes in VPP data plane performance tests: - - further VM and vhost-user test environment optimizations - Qemu virtio queue size increased from default value of 256 to 1024 - - addition of HW cryptodev devices in all three LF FD.io physical testbeds + - Further characterization and optimizations of VPP vhost-user and VM test + methodology and test environment; -#. Added tests (to be updated) + - Tests with varying Qemu virtio queue (a.k.a. vring) sizes: + [vr256] default 256 descriptors, [vr1024] 1024 descriptors to + optimize for packet throughput; - - NICs + - Tests with varying Linux :abbr:`CFS (Completely Fair Scheduler)` + settings: [cfs] default settings, [cfsrr1] :abbr:`CFS (Completely Fair + Scheduler)` RoundRobin(1) policy applied to all data plane threads + handling test packet path including all VPP worker threads and all Qemu + testpmd poll-mode threads; - - Intel x710 (L2 Bridge Domain switched-forwarding, vhost-user) - - Cisco VIC1385 (L2 Bridge Domain switched-forwarding) - - Cisco VIC1227 (L2 Bridge Domain switched-forwarding) + - Resulting test cases are all combinations with [vr256,vr1024] and + [cfs,cfsrr1] settings; - - vhost-user tests with VM + - For more detail see performance results observations section in + this report; - - L2 Bridge Domain switched-forwarding with Intel x710 NIC - - L2 Bridge Domain switched-forwarding with VxLAN and Intel x520 NIC - - L2 Bridge Domain switched-forwarding with Intel xl710 NIC +#. Code updates and optimizations in CSIT performance framework: - - Tests with VxLAN + - Complete CSIT framework code revision and optimizations as descried + on CSIT wiki page `Design_Optimizations + `_. - - L2 Bridge Domain switched-forwarding with Intel x520 NIC - - L2 Bridge Domain switched-forwarding with vhost-user, VM and Intel x520 - NIC + - For more detail see the :ref:`CSIT Framework Design ` section + in this report; -Performance Improvements - to be updated +#. Changes to CSIT driver for TRex Traffic Generator: + + - Complete refactor of TRex CSIT driver; + + - Introduction of packet traffic profiles to improve usability and + manageability of traffic profiles for a growing number of test + scenarios. + + - Support for packet traffic profiles to test IPv4/IPv6 stateful and + stateless DUT data plane features; + +#. Added VPP performance tests + + - **Linux Container VPP memif virtual interface tests** + + - VPP Memif virtual interface (shared memory interface) tests + interconnecting VPP instances over memif. VPP vswitch + instance runs in bare-metal user-mode handling Intel x520 NIC + 10GbE interfaces and connecting over memif (Master side) virtual + interfaces to another instance of VPP running in bare-metal Linux + Container (LXC) with memif virtual interfaces (Slave side). LXC + runs in a priviliged mode with VPP data plane worker threads + pinned to dedicated physical CPU cores per usual CSIT practice. + Both VPP run the same version of software. This test topology is + equivalent to existing tests with vhost-user and VMs. + + - **Stateful Security Groups** + + - New tests of VPP stateful security-groups a.k.a. acl-plugin + functionally compatible with networking-vpp OpenStack; + + - New tested security-groups access-control-lists (acl) + configuration variants include: [iaclNsl] input acl stateless, + [oaclNsl] output acl stateless, [iaclNsf] input acl stateful + a.k.a. reflect, [oaclNsf] output acl stateful a.k.a. reflect, + where N is number of access-control-entries (ace) in the acl. + + - Testing packet flows transmitted by TG: 100, 10k, 100k, always + hitting the last permit entry in acl. + + - **VPP vhost and VM tests** + + - New VPP vhost-user and VM test cases to benchmark performance of + VPP and VM topologies with Qemu and CFS policy combinations of + [vr256,vr1024] x [cfs,cfsrr1]; + + - Statistical analysis of repeatibility of results; + +Performance Improvements ------------------------ -Substantial improvements in measured packet throughput, with relative increase -of double-digit percentage points, have been observed in a number of CSIT -|release| tests listed below. Relative improvements are calculated against the -test results in CSIT rls1701 report. +Substantial improvements in measured packet throughput have been observed in a +number of CSIT |release| tests listed below, with relative increase of +double-digit percentage points. Relative improvements for this release are +calculated against the test results listed in CSIT |release-1| report. The +comparison is calculated between the mean values based on collected and +archived test results' samples for involved VPP releases. Standard deviation +has been also listed for CSIT |release|. VPP-16.09 and VPP-17.01 numbers are +provided for reference. NDR Throughput ~~~~~~~~~~~~~~ Non-Drop Rate Throughput discovery tests: -+-------------------+-----------------------------------------------------------------+------------+-----------+----------------------------+ -| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | VPP-17.04 | 17.01 to 17.04 | -| | | [Mpps] | [Mpps] | [Mpps] | Improvement | -+===================+=================================================================+============+===========+===========+================+ -| L2XC | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-ndrdisc | 9.4 | 12.7 | 13.4 | 6% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2XC | 10ge2p1xl710: 64B-1t1c-eth-l2xcbase-ndrdisc | 9.5 | 12.2 | 12.4 | 2% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2XC dot1ad | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-ndrdisc | 7.4 | 8.8 | 9.3 | 6% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2XC dot1q | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-ndrdisc | 7.5 | 8.8 | 9.2 | 5% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2XC VxLAN | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-ndrdisc | 5.4 | 6.5 | 6.8 | 5% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2XC-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc | 0.5 | 2.8 | 3.2 | 14% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2BD | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-ndrdisc | 7.8 | 10.4 | 10.8 | 4% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| L2BD-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc | 0.4 | 2.7 | 3.4 | 26% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| IPv4 | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ndrdisc | 8.7 | 9.7 | 10.6 | 9% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| IPv4 COP | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-ndrdisc | 7.1 | 8.3 | 9.0 | 8% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| IPv4 iAcl | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-ndrdisc | 6.9 | 7.6 | 8.3 | 9% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| IPv4 vhost | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc | 0.3 | 2.6 | 3.1 | 19% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ -| IPv6 | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-ndrdisc | 3.0 | 7.3 | 8.5 | 16% | -+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+----------------+ +.. only:: html + + .. csv-table:: + :align: center + :file: performance_improvements/performance_improvements_ndr_top.csv + +.. only:: latex + + .. raw:: latex + + \makeatletter + \csvset{ + perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{ m{1.5cm} m{5cm} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead}, + } + \makeatother + + {\tiny + \csvautobooklongtable[separator=comma, + respect all, + no check column count, + perfimprovements column width=1cm, + late after line={\\\hline}, + late after last line={\end{longtable}} + ]{../_tmp/src/vpp_performance_tests/performance_improvements/performance_improvements_ndr_top.csv} + } + PDR Throughput ~~~~~~~~~~~~~~ Partial Drop Rate thoughput discovery tests with packet Loss Tolerance of 0.5%: -+-------------------+-----------------------------------------------------------------+-----------+-----------+-------------------------+ -| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | VPP-17.04 | Relative | -| | | [Mpps] | [Mpps] | [Mpps] | Improvement | -+===================+=================================================================+===========+===========+===========+=============+ -| L2XC | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-pdrdisc | 9.4 | 12.7 | 13.4 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| L2XC dot1ad | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-pdrdisc | 7.4 | 8.8 | 9.3 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| L2XC dot1q | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-pdrdisc | 7.5 | 8.8 | 9.5 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| L2XC VxLAN | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-pdrdisc | 5.4 | 6.5 | 6.8 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| L2XC-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc | 2.6 | 3.2 | 3.2 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| L2BD | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-pdrdisc | 7.8 | 10.6 | 11.1 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| L2BD-vhost-VM | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc | 2.1 | 2.9 | 3.2 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-pdrdisc | 8.7 | 9.7 | 10.6 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 COP | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-pdrdisc | 7.1 | 8.3 | 9.2 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 vhost | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc | 2.0 | 2.7 | 3.2 | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ +.. only:: html -Measured improvements are in line with VPP code optimizations listed in -`VPP-17.04 release notes -`_. + .. csv-table:: + :align: center + :file: performance_improvements/performance_improvements_pdr_top.csv + +.. only:: latex + + .. raw:: latex + + \makeatletter + \csvset{ + perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{ m{1.5cm} m{5cm} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead}, + } + \makeatother + + {\tiny + \csvautobooklongtable[separator=comma, + respect all, + no check column count, + perfimprovements column width=1cm, + late after line={\\\hline}, + late after last line={\end{longtable}} + ]{../_tmp/src/vpp_performance_tests/performance_improvements/performance_improvements_pdr_top.csv} + } -Additionally, vhost-VM performance improvements are due to both VPP code -optimizations as well as due to the FD.io CSIT Linux KVM test environment -optimizations for vhost-VM tests - see section "2.1.7. Methodology: KVM VM -vhost". +Measured improvements are in line with VPP code optimizations listed in +`VPP-17.10 release notes +`_. -Other Performance Changes - to be updated +Other Performance Changes ------------------------- -Other changes in measured packet throughput, with either minor relative -increase or decrease, have been observed in a number of CSIT |release| tests -listed below. Relative changes are calculated against the test results in CSIT -rls1701 report. +Other changes in measured packet throughput, with either minor relative increase +or decrease, have been observed in a number of CSIT |release| tests listed +below. Relative changes are calculated against the test results listed in CSIT +|release-1| report. NDR Throughput ~~~~~~~~~~~~~~ Non-Drop Rate Throughput discovery tests: -+-------------------+-----------------------------------------------------------------+-----------+-----------+-------------------------+ -| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | VPP-17.04 | Relative | -| | | [Mpps] | [Mpps] | [Mpps] | Change | -+===================+=================================================================+===========+===========+===========+=============+ -| IPv4 FIB 200k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-ndrdisc | 8.5 | 9.0 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 FIB 20k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-ndrdisc | 8.5 | 9.0 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 FIB 2M | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-ndrdisc | 8.5 | 7.8 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 Policer | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-ndrdisc | 6.9 | 7.4 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 LISP | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-ndrdisc | 4.4 | 4.8 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 COP | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-ndrdisc | 6.1 | 6.1 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 FIB 200k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-ndrdisc | 6.5 | 5.3 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 FIB 20k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-ndrdisc | 6.9 | 6.5 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 FIB 2M | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-ndrdisc | 5.3 | 4.2 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 iAcl | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-ndrdisc | 6.5 | 6.1 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ +.. only:: html + + .. csv-table:: + :align: center + :file: performance_improvements/performance_improvements_ndr_low.csv + +.. only:: latex + + .. raw:: latex + + \makeatletter + \csvset{ + perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{ m{1.5cm} m{5cm} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead}, + } + \makeatother + + {\tiny + \csvautobooklongtable[separator=comma, + respect all, + no check column count, + perfimprovements column width=1cm, + late after line={\\\hline}, + late after last line={\end{longtable}} + ]{../_tmp/src/vpp_performance_tests/performance_improvements/performance_improvements_ndr_low.csv} + } + PDR Throughput ~~~~~~~~~~~~~~ Partial Drop Rate thoughput discovery tests with packet Loss Tolerance of 0.5%: -+-------------------+-----------------------------------------------------------------+-----------+-----------+-------------------------+ -| VPP Functionality | Test Name | VPP-16.09 | VPP-17.01 | VPP-17.04 | Relative | -| | | [Mpps] | [Mpps] | [Mpps] | Change | -+===================+=================================================================+===========+===========+===========+=============+ -| IPv4 FIB 200k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-pdrdisc | 8.5 | 9.0 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 FIB 20k | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-pdrdisc | 8.5 | 9.0 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 FIB 2M | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-pdrdisc | 8.3 | 8.1 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 iAcl | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-pdrdisc | 7.1 | 7.6 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 Policer | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-pdrdisc | 7.1 | 7.4 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv4 LISP | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-pdrdisc | 4.6 | 4.8 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-pdrdisc | 7.7 | 7.3 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 COP | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-pdrdisc | 6.1 | 6.1 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 FIB 200k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-pdrdisc | 6.9 | 5.3 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 FIB 20k | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-pdrdisc | 6.9 | 6.5 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 FIB 2M | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-pdrdisc | 5.3 | 4.2 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ -| IPv6 iAcl | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-pdrdisc | 6.5 | 6.1 | | % | -+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-------------+ - -Known Issues - to be updated +.. only:: html + + .. csv-table:: + :align: center + :file: performance_improvements/performance_improvements_pdr_low.csv + +.. only:: latex + + .. raw:: latex + + \makeatletter + \csvset{ + perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{ m{1.5cm} m{5cm} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead}, + } + \makeatother + + {\tiny + \csvautobooklongtable[separator=comma, + respect all, + no check column count, + perfimprovements column width=1cm, + late after line={\\\hline}, + late after last line={\end{longtable}} + ]{../_tmp/src/vpp_performance_tests/performance_improvements/performance_improvements_pdr_low.csv} + } + + +Known Issues ------------ -Here is the list of known issues in CSIT |release| for VPP performance tests: (to be updated) - -+---+-------------------------------------------------+-----------------------------------------------------------------+ -| # | Issue | Description | -+---+-------------------------------------------------+-----------------------------------------------------------------+ -| 1 | Sporadic IPv4 routed-forwarding NDR discovery | Suspected issue with DPDK IPv4 checksum calculation. | -| | test failures for 1518B frame size | Observed frequency: sporadic, ca. 20% to 30% of test runs. | -+---+-------------------------------------------------+-----------------------------------------------------------------+ -| 3 | Vic1385 and Vic1227 performance | Low performance of NDR results. Big difference between NDR and | -| | | PDR. . | -+---+-------------------------------------------------+-----------------------------------------------------------------+ -| 4 | Sporadic NDR discovery test failures on x520 | Suspected issue with HW settings (BIOS, FW) in LF | -| | | infrastructure. Issue can't be replicated outside LF. | -+---+-------------------------------------------------+-----------------------------------------------------------------+ -| 5 | Non-repeatible zig-zagging NDR throughput | Suspected NIC driver issue in multi-thread multi-core operation | -| | results for multi-thread multi-core tests | affectin NDR throughput. Applies to XL710 and X710 NICs tested. | -| | - 2t2c, 4t4c - for some tested NICs. | | -+---+-------------------------------------------------+-----------------------------------------------------------------+ +Here is the list of known issues in CSIT |release| for VPP performance tests: + ++---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +| # | Issue | Jira ID | Description | ++---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +| 1 | Vic1385 and Vic1227 low performance. | VPP-664 | Low NDR performance. | +| | | | | ++---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +| 2 | Sporadic NDR discovery test failures on x520. | CSIT-750 | Suspected issue with HW settings (BIOS, FW) in LF | +| | | | infrastructure. Issue can't be replicated outside LF. | ++---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +| 3 | VPP in 2t2c setups - large variation | CSIT-568 | Suspected NIC firmware or DPDK driver issue affecting NDR | +| | of discovered NDR throughput values across | | throughput. Applies to XL710 and X710 NICs, x520 NICs are fine. | +| | multiple test runs with xl710 and x710 NICs. | | | ++---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +| 4 | Lower than expected NDR and PDR throughput with | CSIT-569 | Suspected NIC firmware or DPDK driver issue affecting NDR and | +| | xl710 and x710 NICs, compared to x520 NICs. | | PDR throughput. Applies to XL710 and X710 NICs. | ++---+-------------------------------------------------+------------+-----------------------------------------------------------------+