CSIT/csit2001 plan

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This page tracks release information for FD.io CSIT-2001. It is updated regularly by hand. Real-time information is available in FD.io CSIT code repository and auto-generated docs.

Release Milestones

Milestone Date Deliverables
F0 2020-01-08 Test case keywords code complete. Only low-risk changes accepted.
RC1 2020-01-15 (F0+7) Code complete. Pull first release branch. Only bug fixes accepted in release branch. Date aligned with VPP RC1. Start dry-runs to identify CSIT gaps on less frequently run tests.
RC2 2020-01-22 (RC1+7) Dry-run testing begins of VPP RC2, performance and functional. Date aligned with VPP RC2.
CSIT Release 2020-01-29 (RC2+7) CSIT release complete. VPP release testing starts. Date aligned with VPP Formal Release.
Report Publish 2020-02-12 (Rls+14) CSIT report published for VPP release.

Release Deliverables

Name Status Jira Category Description
VPP API checks Done Framework Improving VPP API change process to make it more reliable and reduce the false positive.
VAT to PAPI Done Framework Complete VAT to PAPI migration - address the API execution efficiency for scale tests. TODO performance tests of fib scale still on VAT.
Python migration Done Framework Python 2.7 to 3.x migration, .md analysis and migration plan coming in gerrit.
Performance bisection Done (but merge postponed) Framework Job for bisecting performance regressions (leveraging per patch perf test work).
Data backend Next Release Framework A standalone test data processing backend - datastore, analytics/query engine. Stop relying on Nexus as results file store.
HDRhistogram Done Framework Making use of HDRhistogram in TRex, and higher resolution of latency data for performance tests.
Reconf tests Done Methodology Reconf tests methodology - see if any methodology improvements required based on feedback, add more test cases.
Perfmon Next Release Framework Per vpp node efficiency - today storing elog capturing thread barriers - for perfmon we are missing an API to catch two values for the run, we would need to check if this got resolved.
Per packet path telemetry Next Release Tools Start with a new telemetry approach - per packet path analysis, similarly how it's done in NFVbench, see how this could be applied to NFV density tests and actually all other tests.
Emails with regressions Done Presentation Trending regressions - add announce emails to csit-report.
Improved anomaly detection Done (for 2001) Methodology Anomaly detection - still seeing some noise, more data doesn't seem to be helping, no pattern. Need more inside knowledge, white-box, need more telemetry data from tests to see if any correlation can be found. Affects trending anomaly detection, per patch perf, perf bisecting.
IPsec in container Done Performance vhost/memif - adding vpp-in-container with ipsec.
More Arm testbeds for vpp_device WIP Device Testbeds - Arm - adding more ThunderX machines for vpp_device to run csit-vpp and vpp-csit device tests.
More vpp_device tests WIP Device Add more vpp_device tests for better VPP API coverage, as those are executed per vpp patch and per csit patch
Arm vpp_Device per VPP patch voting WIP CI process Productize per VPP patch (with voting?) vpp-csit device tests for Arm.
HostStack Tests WIP Performance New Performance Tests - Iperf3+LDP with WRK, Nginx+VCL with WRK, Quic Transport
Name Status Jira Category Description

Jira Task Tracking

All CSIT release deliverables should be tracked in FDio CSIT Jira using one of the following Jira Epic categories:

CI process

Multi-Release Work Areas

Work Area Description
Xeon Skx testbeds Make Skylake performance test coverage complete:

i) Boost tests in 2-Node setups, complete 3-Node setups;

ii) Complete Memif/Container and Vhost-user/VM with latest QEMU;

iii) Push vpp-dev to Ubuntu 18.04.

Arm testbeds Introduce Arm performance tests.
Atom testbeds Introduce Denverton and Rangeley performance tests.
Better vhost, memif coverage Produce more complete test data for NFV service density:

i) Scaled-out Vhost-user/VM and Memif/Container tests; ii) Test the same packet paths and NF topologies: service chains, service pipelines;

iii) See if we can isolate the actual cost of Vhostuser-virtio and Memif-Memif virtual interfaces based on the test and system telemetry.

iv) Test with VM and Containers running on a single Processor (single socket) with no core oversubscription and with.

v) Extend the test over two Processors to quantify impact of UPI latency (and bandwidth).

VPP per patch performance tests Productise per VPP patch performance tests with change detection, prepare for voting:

i) Improve detection accuracy and precision;

ii) Nail down current results variance;

iii) Apply improvements to continuous trending and (future) git auto-bisection.

Trending Improved Detection Make trending job use new Burst MRR trending tests for better anomaly detection:

i) Currently postponed, as the algorithm detects performance changes not related to VPP code.

ii) We need heavy workarounds or way more predictable SUT behavior.

iii) Denverton is more precise, but we need to avoid TRex duration stretching first.

More VPP telemetry reported and analysed API based consumption of VPP telemetry including existing general counters, and future extended per node counters.
Evolve throughput search Build upon MLRsearch and PLRsearch experience vs. ordinary binary search:

i) Compare MLRsearch with PLRsearch soak test results.

Continue improving VPP API process Currently missing features:

i) Make sure no job gives -1 on correct commit.

ii) Enable voting on vpp-csit-devicetest job.

iii) Specify how CSIT should properly react to VPP code moving between plugins.

General enhancements General CSIT and VPP performance test and infrastructure enhancements:

i) Productize VPP_Device container-based functional tests in 1-Node Skylake testbeds, assist with the same for Arm;

ii) Add proper packet latency measurements with T-Rex HDRhistogram, push T-Rex to productize HDRh'gram;

iii) Start using the new VPP stats infra for per test counters and "gauges" collection incl. "show runtime", instead of VPP show CLI;

iv) Start migration from VAT to VPP Python API;

v) Nail down "broken"/not-performing VPP data plane feature arcs (incl. multi-threading) indicated by CSIT-18.10 results data.

External Dependencies

  1. No known external dependencies.