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 9A050A0556 for ; Wed, 25 May 2022 15:38:37 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 68D4740150; Wed, 25 May 2022 15:38:37 +0200 (CEST) Received: from mail-oa1-f45.google.com (mail-oa1-f45.google.com [209.85.160.45]) by mails.dpdk.org (Postfix) with ESMTP id 3C8E8400EF for ; Wed, 25 May 2022 15:38:36 +0200 (CEST) Received: by mail-oa1-f45.google.com with SMTP id 586e51a60fabf-f2c296d320so1830614fac.8 for ; Wed, 25 May 2022 06:38:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:from:date:message-id:subject:to; bh=pUmyBWgCdHhElje0/iRoW0W0KDbxxd2UefR9uOU5Tz0=; b=MbVIPWNLV4uiRI1mJzqcMUWN7eVTaATMhAwEs/xXD/gG4pUO3cQHa5nm95tty3lIGZ DPN8+momKvadpK7vxr9GbO7OXoHMBHoNOYYGOoqRKas3gf+gUhdR6YFN6wh+zLrzbnIh /1O6oObRXXIVG8BA94mwjrZIhrjAhOgTnfmJGVrQneoUH7+sd7Tcq6nGGN4De/ken/wo s33Ig+h5zqXbf4HUz/Qlqp6roH5qLE7B2q78GuJYiHww/PMkn3v6+fVNSHSFRKmV7Se8 6u7SQeH6F/ux4wqXKbGSUSfxWwqKlksg+JWKlYtDTpPoN+Oz0g+/kBE0fnkziIS1wSzo s6bg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=pUmyBWgCdHhElje0/iRoW0W0KDbxxd2UefR9uOU5Tz0=; b=Bkxhyjo5lXlbY44qyKlegJj5chHnWWa0WehE9yoFXDgCsFt+eHP6rwnZAJ2SQW6N7M boL61snIz75/kyGzMkp1ps7plKEvDZOhT/ZFbKXeY8QNqz1cJzI2eqqi9wyIJ5Vwz0G+ zU/ByByf+sRlx4M7vNZ6j7GRfmNmESiMr5NMXtTnvUF64k5BvdpR00lDMlQj3aGN05oV D3WfimjaAHsy3ncrr/A17y3OmPYAteljrrIxtNBS1zbpJlAELDLMJ/AwIHfL0QAh+7lk lrSlRIMyywVeZfwTbr2UGN8nXyTh6MTiaJ2XQryyhHXxi5u5BB6bn/WbPubowGmn57By NVPA== X-Gm-Message-State: AOAM531WhuEirnoiLnK7beOlosGMHma+sI3vNFfZPY/BzpNXHVLSDVFF XQiAovSDhJiPF5ss6ieQFt0RGHcKflUGz3++l8/c8+i/wJxzJw== X-Google-Smtp-Source: ABdhPJwUDK0/Ni7s5xsuOzkj9gvtsO4ux9Dc4e3b3wpNQzUag1SXXnlt1YJomSOW/S57qUWAFvu/S1/Ed11Uz2uZ79M= X-Received: by 2002:a05:6870:b686:b0:dc:a9f4:90a2 with SMTP id cy6-20020a056870b68600b000dca9f490a2mr5671239oab.243.1653485915528; Wed, 25 May 2022 06:38:35 -0700 (PDT) MIME-Version: 1.0 From: Antonio Di Bacco Date: Wed, 25 May 2022 15:38:24 +0200 Message-ID: Subject: Purpose of memory channels option (-n) in DPDK To: users@dpdk.org Content-Type: text/plain; charset="UTF-8" X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org If the processor spreads contiguous memory accesses onto different channels in hardware thanks to the memory controller(s) that handles multiple channels, then, what is the purpose of -n option in DPDK? Is it not overabundant ?