-VPP MRR Performance Dashboard
-=============================
+VPP Performance Dashboard
+=========================
Description
-----------
-Dashboard tables list a summary of per test-case VPP MRR performance trend
-values and detected anomalies (Maximum Receive Rate - received packet rate
-under line rate load). Data comes from trending MRR jobs executed every 12
-hrs (2:00, 14:00 UTC). Trend, trend compliance and anomaly calculations are
-based on a rolling window of <N> samples, currently N=14 covering last 7 days.
-Separate tables are generated for tested VPP worker-thread-core combinations
-(1t1c, 2t2c, 4t4c).
-
-Legend to table:
-
- - **Test Case** : name of CSIT test case, see naming convention in
- `CSIT wiki <https://wiki.fd.io/view/CSIT/csit-test-naming>`_.
- - **Throughput Trend [Mpps]** : last value of trend calculated over a
- rolling window.
- - **Trend Compliance** : calculated based on detected anomalies over a
- rolling window, listed in precedence order - i) **failure** if 3
- consecutive outliers, ii) **regression** if any regressions, iii)
- **progression** if any progressions, iv) **normal** if data compliant
- with trend; test cases listed alphabetically within compliance category.
- - **Top Anomaly [Mpps]** : i) outlier if **failure**, ii) drop
- if **regression**, iii) gain if **progression**, iv) **-**
- if normal i.e. within trend.
- - **Change [%]** : **Top Anomaly** vs. **Throughput Trend**, **-** if
- normal.
- - **Outliers [Number]** : number of outliers detected over a rolling window.
-
-Tables are listed in sections 1.x. Followed by daily trending graphs in
-sections 2.x. Daily trending data used to generate the graphs is listed in
-sections 3.x.
+Performance dashboard tables provide the latest VPP throughput trend,
+trend compliance and detected anomalies, all on a per VPP test case
+basis. Linked trendline graphs enable further drill-down into the
+trendline compliance, sequence and nature of anomalies, as well as
+pointers to performance test builds/logs and VPP (or DPDK) builds.
+Performance trending is currently based on the Maximum Receive Rate (MRR) tests.
+MRR tests measure the packet forwarding rate under the maximum load offered
+by traffic generator over a set trial duration, regardless of packet
+loss. See :ref:`trending_methodology` section for more detail including
+trend and anomaly calculations.
+
+Data samples are generated by the CSIT VPP (and DPDK) performance trending jobs
+executed twice a day (target start: every 12 hrs, 02:00, 14:00 UTC). All
+trend and anomaly evaluation is based on an algorithm which divides test runs
+into groups according to minimum description length principle.
+The trend value is the population average of the results within a group.
+
+Legend to the tables:
+
+ - **Test Case**: name of FD.io CSIT test case, naming convention
+ `here <https://wiki.fd.io/view/CSIT/csit-test-naming>`_.
+ - **Trend [Mpps]**: last value of performance trend.
+ - **Short-Term Change [%]**: Relative change of last trend value
+ vs. last week trend value.
+ - **Long-Term Change [%]**: Relative change of last trend value vs.
+ maximum of trend values over the last quarter except last week.
+ - **Regressions [#]**: Number of regressions detected.
+ - **Progressions [#]**: Number of progressions detected.
+
+Tested VPP worker-thread-core combinations (1t1c, 2t2c, 4t4c) are listed
+in separate tables in section 1.x. Followed by trending methodology in
+section 2. and trendline graphs in sections 3.x. Performance test data
+used for trendline graphs is provided in sections 4.x.
VPP worker on 1t1c
------------------
Code Review / csit.git / blobdiff