From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC0B1D3A660 for ; Tue, 29 Oct 2024 14:37:27 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 03D7342E10; Tue, 29 Oct 2024 15:37:27 +0100 (CET) Received: from dkmailrelay1.smartsharesystems.com (smartserver.smartsharesystems.com [77.243.40.215]) by mails.dpdk.org (Postfix) with ESMTP id 3FDA240144 for ; Tue, 29 Oct 2024 15:37:26 +0100 (CET) Received: from smartserver.smartsharesystems.com (smartserver.smartsharesys.local [192.168.4.10]) by dkmailrelay1.smartsharesystems.com (Postfix) with ESMTP id 0D84C2027D; Tue, 29 Oct 2024 15:37:26 +0100 (CET) Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: RE: [PATCH] net: increase the maximum of RX/TX descriptors Date: Tue, 29 Oct 2024 15:37:25 +0100 Message-ID: <98CBD80474FA8B44BF855DF32C47DC35E9F845@smartserver.smartshare.dk> X-MimeOLE: Produced By Microsoft Exchange V6.5 In-Reply-To: <20241029124832.224112-1-sismis@cesnet.cz> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [PATCH] net: increase the maximum of RX/TX descriptors Thread-Index: AdsqAPbEpTo4dAM0S9epNy9XJghjCAADtPEA References: <20241029124832.224112-1-sismis@cesnet.cz> From: =?iso-8859-1?Q?Morten_Br=F8rup?= To: "Lukas Sismis" , , Cc: 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 > From: Lukas Sismis [mailto:sismis@cesnet.cz] > Sent: Tuesday, 29 October 2024 13.49 >=20 > Intel PMDs are capped by default to only 4096 RX/TX descriptors. > This can be limiting for applications requiring a bigger buffer > capabilities. The cap prevented the applications to configure > more descriptors. By bufferring more packets with RX/TX > descriptors, the applications can better handle the processing > peaks. >=20 > Signed-off-by: Lukas Sismis > --- Seems like a good idea. Have the max number of descriptors been checked with the datasheets for = all the affected NIC chips?