|SUCCESS| pw157450 [PATCH] [v3] vhost: fix a double fetch when deque

[dpdklab@iol.unh.edu]

Test-Label: iol-intel-Performance
Test-Status: SUCCESS
http://dpdk.org/patch/157450

_Performance Testing PASS_

Submitter: Yunjian Wang <wangyunjian@huawei.com>
Date: Friday, October 10 2025 08:41:36 
DPDK git baseline: Repo:dpdk-next-virtio
  Branch: master
  CommitID:4159ea62922ce41566c7bab44655ad78bee85458

157450 --> performance testing pass

Upstream job id: Template-DTS-Pipeline#248778

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: Intel E810 (Arm Grace Server) 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           | -2.7%                        |
+------------+---------+----------+-------------+------------------------------+
| 64         | 2048    | 1        | 1           | 0.2%                         |
+------------+---------+----------+-------------+------------------------------+

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         | -0.3%                        |
+----------+-------------+---------+------------+------------------------------+
| 1        | 2           | 2048    | 64         | 4.5%                         |
+----------+-------------+---------+------------+------------------------------+
| 1        | 1           | 512     | 64         | 1.0%                         |
+----------+-------------+---------+------------+------------------------------+
| 1        | 1           | 2048    | 64         | 0.2%                         |
+----------+-------------+---------+------------+------------------------------+

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           | -0.1%                        |
+------------+---------+----------+-------------+------------------------------+
| 64         | 2048    | 1        | 1           | -0.5%                        |
+------------+---------+----------+-------------+------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/patchsets/34250/

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