|FAILURE| pw166778 [PATCH] fbarray: check fbarray lock downgrade fai

[dpdklab at iol.unh.edu]

Test-Label: iol-intel-Performance
Test-Status: FAILURE
https://dpdk.org/patch/166778

_Performance Testing issues_

Submitter: Daniil Iskhakov <dish at amicon.ru>
Date: Tuesday, July 14 2026 08:02:42 
DPDK git baseline: Repo:dpdk
  Branch: master
  CommitID:ee2e8e2ba71cbc779856ac16b6326d033ac644b3

166778 --> performance testing issues

Upstream job id: Template-DPDK-DTS-Pipeline#16922

Test environment and result as below:

Ubuntu 22.04
Kernel: 5.15
Compiler: gcc gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 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           | 7238.5%                      |
+------------+---------+----------+-------------+------------------------------+
| 64         | 2048    | 1        | 1           | 8231.3%                      |
+------------+---------+----------+-------------+------------------------------+

Ubuntu 24.04 LTS
Kernel: 6.8.0-44-generic
Compiler: gcc 13.2.0
NIC: Intel Corporation Ethernet Controller XL710 for 40GbE QSFP+ 40 Mbps
Fail/Total: 1/6
Failed cases list:
      - DTS https://dpdklab.iol.unh.edu/results/testcases/72/

Detail performance results: 
+------------+---------+----------+-------------+------------------------------+
| frame_size | txd/rxd | num_cpus | num_threads |  throughput difference from  |
|            |         |          |             |           expected           |
+============+=========+==========+=============+==============================+
| 64         | 2048    | 1        | 1           | -7.1%                        |
+------------+---------+----------+-------------+------------------------------+
| 128        | 2048    | 1        | 1           | 3.9%                         |
+------------+---------+----------+-------------+------------------------------+
| 256        | 2048    | 1        | 1           | -0.3%                        |
+------------+---------+----------+-------------+------------------------------+
| 512        | 2048    | 1        | 1           | -1.2%                        |
+------------+---------+----------+-------------+------------------------------+
| 1024       | 2048    | 1        | 1           | 0.2%                         |
+------------+---------+----------+-------------+------------------------------+
| 1518       | 2048    | 1        | 1           | 0.5%                         |
+------------+---------+----------+-------------+------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/patchsets/36543/

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