Bug 916
| Summary: | [20.11.4-rc1][mlx5] 2% single core packet forwarding performance degradation | ||
|---|---|---|---|
| Product: | DPDK | Reporter: | Ali Alnubani (alialnu) |
| Component: | ethdev | Assignee: | dev |
| Status: | UNCONFIRMED --- | ||
| Severity: | normal | ||
| Priority: | Normal | ||
| Version: | 20.11 | ||
| Target Milestone: | --- | ||
| Hardware: | All | ||
| OS: | All | ||
The patch d95c7a669d03 ("mbuf: fix reset on mbuf free") is causing a ~2% performance regression in 20.11.4-rc1 (50.3 -> 49 mpps). Testpmd command: build/app/dpdk-testpmd -n 4 -a 0000:82:00.0 -a 0000:82:00.1 -c 0x9000 -- -i --nb-cores=1 --txd=256 --rxd=256 --auto-start Traffic generator used is TREX with traffic pattern (Ether / IP / UDP). OS: Ubuntu 18.04 NIC: ConnectX-5 MLNX_OFED: MLNX_OFED_LINUX-5.4-3.1.0.0 FW: 16.31.2006 See this thread: https://inbox.dpdk.org/dev/DM4PR12MB51675B979CBD86C74394BF74DAAA9@DM4PR12MB5167.namprd12.prod.outlook.com/