4 Changes in |csit-release|
5 -------------------------
7 #. **VPP performance tests**
9 - *MRR tests* - Maximum Receive Rate tests measure the packet forwarding rate
10 under the maximum load offered by traffic generator over a set trial
11 duration, regardless of packet loss. MRR tests are used for continuous
12 performance trending and for comparison between releases.
14 - *MLR tests* - NDR and PDR tests measure the packet forwarding rate using
15 MLRsearch library by traffic generator. All tests that previously used
16 binary search were converted to MLRsearch.
18 - *L2patch tests* - Tests measure performance of L2patch, cross linking
19 RX and TX of two physical interfaces.
21 - *2-node tests* - Baseline set of 2-node tests covering base ip4, ip4,
24 - *Generated tests* - Simplified and unified test structure,
25 semi-autogenerated by generator script. Test generator is currently able
26 to create test combinations with various frame size and cores combinations.
27 All existing test cases were converted to new format.
29 - *Simultaneous multithreading* - SMT-aware automatic detection and
30 resource configuration including thread affinity, number of rx queues and
31 DPDK I/O mbufs. Tests are automatically tagged during execution indicating
34 - *Intel Skylake* - Topologies consisting of 2-node and 3-node using
35 SuperMirco servers each equipped with two Intel Xeon Skylake Platinum
38 #. **Presentation and Analytics Layer**
40 - *Performance trending* - Added continuous performance trending and
41 analysis. New Performance Trending and Performance Analysis jobs
42 executed regular throughput tests, with results being subsequently
43 analysed and trend and anomalies summarized and presented in VPP
44 Performance Dashboard and trendline graphs.
46 #. **Test Framework Optimizations**
48 - *Performance tests efficiency* - Qemu build/install optimizations,
49 warmup phase handling, vpp restart handling. Resulted in improved
50 stability and reduced total execution time by 30% for single pkt
53 - *General code housekeeping* - ongoing RF keywords optimizations,
54 removal of redundant RF keywords.
59 Relative performance changes in measured packet throughput in |csit-release|
60 are calculated against the results from |csit-release-1|
61 report. Listed mean and standard deviation values are computed based on
62 a series of the same tests executed against respective VPP releases to
63 verify test results repeatability, with percentage change calculated for
64 mean values. Note that the standard deviation is quite high for a small
65 number of packet throughput tests, what indicates poor test results
66 repeatability and makes the relative change of mean throughput value not
67 fully representative for these tests. The root causes behind poor
68 results repeatability vary between the test cases.
73 NDR throughput changes between releases are available in a
74 CSV and pretty ASCII formats:
76 - `csv format for 1t1c <../_static/vpp/performance-changes-1t1c-ndr.csv>`_,
77 - `csv format for 2t2c <../_static/vpp/performance-changes-2t2c-ndr.csv>`_,
78 - `pretty ASCII format for 1t1c <../_static/vpp/performance-changes-1t1c-ndr.txt>`_,
79 - `pretty ASCII format for 2t2c <../_static/vpp/performance-changes-2t2c-ndr.txt>`_.
83 Test results have been generated by
84 `FD.io test executor vpp performance job 3n-hsw`_,
85 with Robot Framework result
86 files csit-vpp-perf-|srelease|-\*.zip
87 `archived here <../_static/archive/>`_.
92 PDR throughput changes between releases are available in a
93 CSV and pretty ASCII formats:
95 - `csv format for 1t1c <../_static/vpp/performance-changes-1t1c-pdr.csv>`_,
96 - `csv format for 2t2c <../_static/vpp/performance-changes-2t2c-pdr.csv>`_,
97 - `pretty ASCII format for 1t1c <../_static/vpp/performance-changes-1t1c-pdr.txt>`_,
98 - `pretty ASCII format for 2t2c <../_static/vpp/performance-changes-2t2c-pdr.txt>`_.
102 Test results have been generated by
103 `FD.io test executor vpp performance job 3n-hsw`_,
104 with Robot Framework result
105 files csit-vpp-perf-|srelease|-\*.zip
106 `archived here <../_static/archive/>`_.
111 MRR small packet throughput changes between releases are available in a
112 CSV and pretty ASCII formats:
114 - `csv format for 1t1c <../_static/vpp/performance-changes-1t1c-mrr.csv>`_,
115 - `csv format for 2t2c <../_static/vpp/performance-changes-2t2c-mrr.csv>`_,
116 - `csv format for 4t4c <../_static/vpp/performance-changes-4t4c-mrr.csv>`_,
117 - `pretty ASCII format for 1t1c <../_static/vpp/performance-changes-1t1c-mrr.txt>`_,
118 - `pretty ASCII format for 2t2c <../_static/vpp/performance-changes-2t2c-mrr.txt>`_,
119 - `pretty ASCII format for 4t4c <../_static/vpp/performance-changes-4t4c-mrr.txt>`_.
123 Test results have been generated by
124 `FD.io test executor vpp performance job 3n-hsw`_,
125 with Robot Framework result
126 files csit-vpp-perf-|srelease|-\*.zip
127 `archived here <../_static/archive/>`_.
129 Comparison Across Testbeds
130 --------------------------
132 Relative performance changes in measured packet throughputon 3-Node Skx testbed
133 are calculated against the results measured on 3-Node Hsw testbed.
138 NDR changes between testbeds are available in a
139 CSV and pretty ASCII formats:
141 - `csv format for ndr <../_static/vpp/performance-compare-testbeds-3n-hsw-3n-skx-ndr.csv>`_,
142 - `pretty ASCII format for ndr <../_static/vpp/performance-compare-testbeds-3n-hsw-3n-skx-ndr.txt>`_.
146 Test results have been generated by
147 `FD.io test executor vpp performance job 3n-hsw`_ and
148 `FD.io test executor vpp performance job 3n-skx`_
149 with Robot Framework result
150 files csit-vpp-perf-|srelease|-\*.zip
151 `archived here <../_static/archive/>`_.
156 PDR throughput changes between testbeds are available in a
157 CSV and pretty ASCII formats:
159 - `csv format for pdr <../_static/vpp/performance-compare-testbeds-3n-hsw-3n-skx-pdr.csv>`_,
160 - `pretty ASCII format for pdr <../_static/vpp/performance-compare-testbeds-3n-hsw-3n-skx-pdr.txt>`_.
164 Test results have been generated by
165 `FD.io test executor vpp performance job 3n-hsw`_ and
166 `FD.io test executor vpp performance job 3n-skx`_
167 with Robot Framework result
168 files csit-vpp-perf-|srelease|-\*.zip
169 `archived here <../_static/archive/>`_.
174 MRR throughput changes between testbeds are available in a
175 CSV and pretty ASCII formats:
177 - `csv format for mrr <../_static/vpp/performance-compare-testbeds-3n-hsw-3n-skx-mrr.csv>`_,
178 - `pretty ASCII format for mrr <../_static/vpp/performance-compare-testbeds-3n-hsw-3n-skx-mrr.txt>`_.
182 Test results have been generated by
183 `FD.io test executor vpp performance job 3n-hsw`_ and
184 `FD.io test executor vpp performance job 3n-skx`_
185 with Robot Framework result
186 files csit-vpp-perf-|srelease|-\*.zip
187 `archived here <../_static/archive/>`_.
192 In addition to reporting throughput changes between VPP releases, CSIT
193 provides continuous performance trending for VPP master branch:
195 #. `VPP Performance Dashboard <https://docs.fd.io/csit/master/trending/introduction/index.html>`_
196 - per VPP test case throughput trend, trend compliance and summary of
199 #. `Trending Methodology <https://docs.fd.io/csit/master/trending/methodology/index.html>`_
200 - throughput test metrics, trend calculations and anomaly
201 classification (progression, regression, outlier).
203 #. `Trendline Graphs <https://docs.fd.io/csit/master/trending/trending/index.html>`_
204 - per VPP build MRR throughput measurements against the trendline
205 with anomaly highlights, with associated CSIT test jobs.
210 List of known issues in |csit-release| for VPP performance tests:
212 +---+-------------------------------------------------+------------+-----------------------------------------------------------------+
213 | # | Issue | Jira ID | Description |
214 +===+=================================================+============+=================================================================+
215 | 1 | Sporadic (1 in 200) NDR discovery test failures | CSIT-570 | DPDK reporting rx-errors, indicating L1 issue. Suspected issue |
216 | | on x520. | | with HW combination of X710-X520 in LF testbeds. Not observed |
217 | | | | outside of LF testbeds. |
218 +---+-------------------------------------------------+------------+-----------------------------------------------------------------+
219 | 2 | Lower than expected NDR throughput of DPDK | CSIT-571 | Suspected NIC firmware or DPDK driver issue affecting NDR and |
220 | | testpmd and VPP L2 path NDR throughput with | | PDR throughput on XL710 and X710 NICs. |
221 | | xl710 and x710 NICs, compared to x520 NICs. | | |
222 +---+-------------------------------------------------+------------+-----------------------------------------------------------------+
223 | 3 | Tagged Ethernet dot1q and dot1ad L2 path | CSIT-1066 | Tagged Ethernet dot1q and dot1ad L2 path throughput regression: |
224 | | throughput regression. | | NDR -2%..-5%, PDR -2%..-6%, MRR. Affects l2xc and l2bd |
225 | | | | performance tests. |
226 +---+-------------------------------------------------+------------+-----------------------------------------------------------------+
227 | 4 | IPSec (software, no QAT HW) throughput | CSIT-1064 | IPSec throughput regression: NDR -3%..-8%, PDR -2%..-8%, MRR |
228 | | regression. | | -3%..-7%. Affects IPSec SW tests, QAT HW tests not affected. |
229 +---+-------------------------------------------------+------------+-----------------------------------------------------------------+