|FAILURE| pw158619-158623 [PATCH] [v5,5/5] bpf: replace use of VLA

[dpdklab@iol.unh.edu]

Test-Label: iol-intel-Performance
Test-Status: FAILURE
http://dpdk.org/patch/158623

_Performance Testing issues_

Submitter: Stephen Hemminger <stephen@networkplumber.org>
Date: Sunday, November 09 2025 20:07:38 
DPDK git baseline: Repo:dpdk
  Branch: master
  CommitID:8010858724e2aca25f4b3a6bf383e3eacb2f4b10

158619-158623 --> performance testing issues

Upstream job id: Template-DTS-Pipeline#253721

Test environment and result as below:

Ubuntu 20.04
Kernel: 5.4
Compiler: gcc gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0
NIC: Intel Corporation Ethernet Converged Network Adapter XL710-QDA2 40000 Mbps
Fail/Total: 0/4

Detail performance results: 
+----------+-------------+---------+------------+------------------------------+
| num_cpus | num_threads | txd/rxd | frame_size |  throughput difference from  |
|          |             |         |            |           expected           |
+==========+=============+=========+============+==============================+
| 1        | 2           | 512     | 64         | 1.5%                         |
+----------+-------------+---------+------------+------------------------------+
| 1        | 2           | 2048    | 64         | -2.9%                        |
+----------+-------------+---------+------------+------------------------------+
| 1        | 1           | 512     | 64         | 2.3%                         |
+----------+-------------+---------+------------+------------------------------+
| 1        | 1           | 2048    | 64         | -1.2%                        |
+----------+-------------+---------+------------+------------------------------+

Ubuntu 22.04
Kernel: 5.15
Compiler: gcc gcc (Ubuntu 11.4.0-1ubuntu1~22.04.2) 11.4.0
NIC: Intel E810 100000 Mbps
Fail/Total: 0/2

Detail performance results: 
+------------+---------+----------+-------------+------------------------------+
| frame_size | txd/rxd | num_cpus | num_threads |  throughput difference from  |
|            |         |          |             |           expected           |
+============+=========+==========+=============+==============================+
| 64         | 512     | 1        | 1           | 0.2%                         |
+------------+---------+----------+-------------+------------------------------+
| 64         | 2048    | 1        | 1           | 0.1%                         |
+------------+---------+----------+-------------+------------------------------+

Ubuntu 24.04
Kernel: 6.8
Compiler: gcc gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
NIC: Intel E810 (Arm Grace Server) 100000 Mbps
Fail/Total: 2/2
Failed cases list:
      - DTS https://dpdklab.iol.unh.edu/results/testcases/1/

Detail performance results: 
+------------+---------+----------+-------------+------------------------------+
| frame_size | txd/rxd | num_cpus | num_threads |  throughput difference from  |
|            |         |          |             |           expected           |
+============+=========+==========+=============+==============================+
| 64         | 512     | 1        | 1           | -29.7%                       |
+------------+---------+----------+-------------+------------------------------+
| 64         | 2048    | 1        | 1           | -20.5%                       |
+------------+---------+----------+-------------+------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/patchsets/34514/

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