|FAILURE| pw166442 [PATCH] [v2] net/idpf: fix Tx of large mbuf segme

[dpdklab at iol.unh.edu]

Test-Label: iol-mellanox-Performance
Test-Status: FAILURE
https://dpdk.org/patch/166442

_Performance Testing issues_

Submitter: Bruce Richardson <bruce.richardson at intel.com>
Date: Wednesday, July 01 2026 08:23:37 
DPDK git baseline: Repo:dpdk-next-net-intel
  Branch: master
  CommitID:75efafb4d23a351e230eb853f30c285dfb80ee7e

166442 --> performance testing issues

Upstream job id: Template-DPDK-DTS-Pipeline#15260

Test environment and result as below:

Ubuntu 24.04
Kernel: 6.8
Compiler: gcc gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
NIC: NVIDIA Mellanox ConnectX-7 100000 Mbps
Fail/Total: 0/6

Detail performance results: 
+------------+---------+----------+-------------+------------------------------+
| frame_size | txd/rxd | num_cpus | num_threads |  throughput difference from  |
|            |         |          |             |           expected           |
+============+=========+==========+=============+==============================+
| 64         | 1024    | 1        | 1           | 7940.3%                      |
+------------+---------+----------+-------------+------------------------------+
| 128        | 1024    | 1        | 1           | 7903.3%                      |
+------------+---------+----------+-------------+------------------------------+
| 256        | 1024    | 1        | 1           | 8039.0%                      |
+------------+---------+----------+-------------+------------------------------+
| 512        | 1024    | 1        | 1           | 4578.3%                      |
+------------+---------+----------+-------------+------------------------------+
| 1024       | 1024    | 1        | 1           | 2284.3%                      |
+------------+---------+----------+-------------+------------------------------+
| 1518       | 1024    | 1        | 1           | 1514.4%                      |
+------------+---------+----------+-------------+------------------------------+

Ubuntu 24.04
Kernel: 6.8
Compiler: gcc gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
NIC: Mellanox ConnectX-6 Lx 25000 Mbps
Fail/Total: 0/6

Detail performance results: 
+------------+---------+----------+-------------+------------------------------+
| frame_size | txd/rxd | num_cpus | num_threads |  throughput difference from  |
|            |         |          |             |           expected           |
+============+=========+==========+=============+==============================+
| 64         | 1024    | 1        | 1           | 0.2%                         |
+------------+---------+----------+-------------+------------------------------+
| 128        | 1024    | 1        | 1           | -0.1%                        |
+------------+---------+----------+-------------+------------------------------+
| 256        | 1024    | 1        | 1           | 0.1%                         |
+------------+---------+----------+-------------+------------------------------+
| 512        | 1024    | 1        | 1           | 0.2%                         |
+------------+---------+----------+-------------+------------------------------+
| 1024       | 1024    | 1        | 1           | -0.1%                        |
+------------+---------+----------+-------------+------------------------------+
| 1518       | 1024    | 1        | 1           | 0.2%                         |
+------------+---------+----------+-------------+------------------------------+

Ubuntu 24.04
Kernel: 6.8.0-55-generic
Compiler: gcc 13.3.0
NIC: Mellanox ConnectX-5 100000 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         | 1024    | 1        | 1           | -11.0%                       |
+------------+---------+----------+-------------+------------------------------+
| 128        | 1024    | 1        | 1           | -1.9%                        |
+------------+---------+----------+-------------+------------------------------+
| 256        | 1024    | 1        | 1           | 1.4%                         |
+------------+---------+----------+-------------+------------------------------+
| 512        | 1024    | 1        | 1           | -0.8%                        |
+------------+---------+----------+-------------+------------------------------+
| 1024       | 1024    | 1        | 1           | -0.1%                        |
+------------+---------+----------+-------------+------------------------------+
| 1518       | 1024    | 1        | 1           | 0.1%                         |
+------------+---------+----------+-------------+------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/patchsets/36424/

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