From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 9909BA034E; Wed, 22 Dec 2021 18:03:04 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 843E940687; Wed, 22 Dec 2021 18:03:04 +0100 (CET) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id 093B840040 for ; Wed, 22 Dec 2021 18:03:04 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id E707DA034F; Wed, 22 Dec 2021 18:03:03 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [Bug 916] [20.11.4-rc1][mlx5] 2% single core packet forwarding performance degradation Date: Wed, 22 Dec 2021 17:03:04 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: ethdev X-Bugzilla-Version: 20.11 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: alialnu@nvidia.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org https://bugs.dpdk.org/show_bug.cgi?id=3D916 Bug ID: 916 Summary: [20.11.4-rc1][mlx5] 2% single core packet forwarding performance degradation Product: DPDK Version: 20.11 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: ethdev Assignee: dev@dpdk.org Reporter: alialnu@nvidia.com Target Milestone: --- 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=3D1 --txd=3D256 --rxd=3D256 --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@DM4PR12MB= 5167.namprd12.prod.outlook.com/ --=20 You are receiving this mail because: You are the assignee for the bug.=