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 94A3EA0A0C; Thu, 1 Jul 2021 10:58:02 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 29A5E40141; Thu, 1 Jul 2021 10:58:02 +0200 (CEST) Received: from sender11-of-o51.zoho.eu (sender11-of-o51.zoho.eu [31.186.226.237]) by mails.dpdk.org (Postfix) with ESMTP id 23D2840040 for ; Thu, 1 Jul 2021 10:58:00 +0200 (CEST) ARC-Seal: i=1; a=rsa-sha256; t=1625129878; cv=none; d=zohomail.eu; s=zohoarc; b=kQAUb6hxsBg6xpTJJKzp4HHDGRSrPCVVBUsSIn0DLCNQtXh8o+EaFUatprdWgKHVprQjVVCeQrXhOSXU7Z7upBriC1Sk9Q0qfMRP737bP1Vxi0AbIhgAba4LUbJoRnmnvQykE13IZTY0Im/HE2UxftbwnGKN/6tsilzMg7VyAV0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1625129878; h=Content-Type:Date:From:MIME-Version:Message-ID:Subject:To; bh=U+C+cBhiyHIggQLTYmt75Norri7f8bIc7cYoo/vrDQY=; b=csUFavakKUubG14TIMUawt3QEbo+VwbFuR5jYoJIRPAcnD4H9bpHCEQpOYWZ/cUSn28SVB82BOd+SBmI18fF+VJT+4AVBBkI0DJAIP3oFJt9rSOhuHJzP4U03O+J27GwmP/cIceTAx6oT/jz+liSx/SGCKU4T+v93MmGlLpRJMg= ARC-Authentication-Results: i=1; mx.zohomail.eu; spf=pass smtp.mailfrom=liangma@liangbit.com; dmarc=pass header.from= Received: from C02F33EJML85 (ec2-3-9-240-80.eu-west-2.compute.amazonaws.com [3.9.240.80]) by mx.zoho.eu with SMTPS id 1625129877773183.60348317102216; Thu, 1 Jul 2021 10:57:57 +0200 (CEST) Date: Thu, 1 Jul 2021 09:57:55 +0100 From: Liang Ma To: dev@dpdk.org Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-ZohoMailClient: External Subject: [dpdk-dev] DPDK will benefit from incoming linux kernel mm patch(HugeTLB related) 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 Sender: "dev" Hi all, FYI The incoming kernel mm patch will save ~1.6% Memory for 1G hugepage and ~1.2% for 2M hugepage, which is a good news for DPDK. https://lore.kernel.org/linux-doc/20210510030027.56044-5-songmuchun@bytedance.com/ if you run a server with 1TB Dram, you can save ~16G. this patches has been tested on bytedance/huawei/aws platform. it looks very promising(might be merged into next version kernel rc) Regards Liang