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 5E1BFA0C5C; Fri, 26 Nov 2021 12:29:17 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1875640C35; Fri, 26 Nov 2021 12:29:17 +0100 (CET) Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by mails.dpdk.org (Postfix) with ESMTP id 38A00406FF for ; Fri, 26 Nov 2021 12:29:15 +0100 (CET) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id DCCFB5C00DA; Fri, 26 Nov 2021 06:29:14 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 26 Nov 2021 06:29:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s=fm2; bh= wMGxyfw5wRHxQE69NJLtqCZlX20vrjAWhp/Qavug+dE=; b=FahDdcTIsjvhXMa+ XRnxbHYPsnEtoik7Zk7CkubtuuUcnUO8u+O83D+pmhBnYimD+28ovVb8M5H4Ui0F sfrTUoj965n/naA4kpyxLTZCLbZWws3V8dvQJd/EdWv5HZhn/GeSU4JEuG/v3EIQ fQmeAq0lMRaOqX+JMPWdtitTIro2M7GfXjC7E6KCcllq3gPZx9zn8GuMG3mkv8Kt MN8lvey4N7O0e5dxUUZnxD4ITKpwU6MEk3qEPp+d9Qq+OnZzgSY2p9XGNSt+CWmv q5l31wTAWKCNWuM++LeX9Ftd86Wviskt54i7PVQqTJYNFL4McbFuGuqatQwsXqk/ ua87mw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=wMGxyfw5wRHxQE69NJLtqCZlX20vrjAWhp/Qavug+ dE=; b=f6GZb8JadHqJ25URV5wocYz/nkOwS5zHmFhsGGDG74RzksP2VQ0juwsCS Wu9lnxeirIjFj24+vuwmGGvka7qrYp7YOtxIpgqgyc8F6Q2qfr0GuIkbQbzRaMEU 6NpV7ul8rGGSjErfiFXqpdGQo61h2GVmexUKSBiNAwWaLNbt/sbLfy0hO+/Gr6ma 1t7fmP391VPkZvUNpmovzyce9M+PHuCOgrS1Uvs+5+amwpBUx2obJrnORVrDBrLN FCf67j2dxKVjbPgCVTiUmdNx7ATFoAo3ZsA+ToqzJs9TfBt9Iy1lfd3oPHD9YU7q sv9jWgqBV6P45arvsZ0J80SUiL1AQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddrhedvgddvjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkjghfggfgtgesthfuredttddtvdenucfhrhhomhepvfhhohhmrghs ucfoohhnjhgrlhhonhcuoehthhhomhgrshesmhhonhhjrghlohhnrdhnvghtqeenucggtf frrghtthgvrhhnpedugefgvdefudfftdefgeelgffhueekgfffhfeujedtteeutdejueei iedvffegheenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhroh hmpehthhhomhgrshesmhhonhhjrghlohhnrdhnvght X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 26 Nov 2021 06:29:13 -0500 (EST) From: Thomas Monjalon To: Elena Agostini Cc: dev@dpdk.org Subject: Re: [PATCH v1] gpudev: remove unnecessary rte_gpu_wmb Date: Fri, 26 Nov 2021 12:29:10 +0100 Message-ID: <29782478.duVJ8Zo7tk@thomas> In-Reply-To: <20211125224054.26157-1-eagostini@nvidia.com> References: <20211125224054.26157-1-eagostini@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" 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 25/11/2021 23:40, eagostini@nvidia.com: > From: Elena Agostini > > Remove unnecessary rte_gpu_wmb from rte_gpu_comm_populate_list_pkts. > It causes a performance degradation in case of NVIDIA GPU V100. > > This change doesn't affect any functionality as the status resides > in CPU registered memory. > > Fixes: c7ebd65c1372 ("gpudev: add communication list") > > Signed-off-by: Elena Agostini Applied, thanks.