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 C9D6C46DAA; Sat, 23 Aug 2025 16:28:38 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 705F440674; Sat, 23 Aug 2025 16:28:38 +0200 (CEST) Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) by mails.dpdk.org (Postfix) with ESMTP id 5491340674 for ; Sat, 23 Aug 2025 16:28:37 +0200 (CEST) Received: by mail-wm1-f47.google.com with SMTP id 5b1f17b1804b1-45a1b004a31so22158025e9.0 for ; Sat, 23 Aug 2025 07:28:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1755959317; x=1756564117; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=CoBmpPeyrWwGRAgM+rf2hPmFWMqSKgbpEM3aELwsSPM=; b=lfZ4uLPpdCmtEHISQnRwILQelrb3qk8hX0Q1qK0i/pmY+nDbt9FMYBJ7C68VZzMtBj DnyWjHT/1niN2efhQJkZ0Cxf21Yv7cwcPLLfRxCxJeKTfATWL0RbyjItpFNRED4r983B CQf7FENGb6m5bjt6k6UPZz+cZRhzBcJuwdq2oRvIkDepcb7BiKtK7mT9PoFm6j7UH0Qg 8VuDUrRx7FYxywIr4i490AjzsOHaqIAyqTUlmvD0+c9KKOedr/SS1msnMMygU/xRPkNm i7QSepkagHc6q9lhGj3FX+yPG1hD/CorTr1t9p5Wf9kN2Dtd3WzQzm0mAQi2d1kYmHjW UqUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755959317; x=1756564117; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=CoBmpPeyrWwGRAgM+rf2hPmFWMqSKgbpEM3aELwsSPM=; b=MfUF0K8SVPijJ9fEtZC2USGrylJFOgQX2eCj9a2dMsudfc+hx+X91YsOj3eHCx6Usu RGS5SKvYNVdPDdwOJ18dkwnqXp3zYFeTM/jztwgj4OzF9Qio9oKSe/4gd9YK+mtGxn3H rPph6+JU5Rv0oRiMf4ovMGBZ64Ciq8EpHft/OIwjDuqNgV8H1iJBq5IXsWzISCW2EDdu YMVOy5m1Qncxr1KWs5mvZdtcPOhqK4nKnR5jRTXwi0BSmpwUHbpia2CLiYWCBkBaZkdi YfuEJR3n7Fdo4VNXSkufCFrH+JIrt7css+GTbsl6SWX+lmzMSn7XWR7K6WhwLJ2J/AQA xXsQ== X-Gm-Message-State: AOJu0Yx0QbKUGe35gyS5wllznZ+4S2Qi6sa5RGg5lbENz0IA6MZLqQH6 lkTwCkdPo/lzah5aXc7zHBZbYJEB3zNAoKNCyV76Z6+y0mQWdh3TgkOG1NZBZwJ4Ucc= X-Gm-Gg: ASbGncvj/2sWhzZ0WdOLRW3ncnP18IQUTOFlbX6oKvUYi/yvhpxY72/+r8m/AS4FzBp 7/UAv8My1Z9gR3+BP32zEuWWLs6gWri/3pBhMhDvkFV5Jrze7djr9IWTFCNtKuQ3MqgH1xTNtnh SUrCKoviNe5gyLdhXWE1BoCmUrBJsbPiQyzNcm2yBB9AfOk6cuvw8gYOupgFZC3cQ64JszU4bou Vsf9WYON4Q6B8gqwxk98fhO9hnBmU+mgaPeY6WHJAQj9TbRUSv6SGiBrJMs/kxrj2YuTXagmBIZ WFgFG/TUrVfBFgPWdo/y3ht6pffMGZk0wmkpzPEiTjFPE9eG8ci+0DiqwUFYQE37I5P64f/LTBd UjgoeOAVGtLJUJrqAz0mtQ8lOREyqIvHfCyxmqjB/kC2kXmVxseH+11d7+LWE6va3kEKUTniKiN Q= X-Google-Smtp-Source: AGHT+IHi6+vkdu6DuibyQOVYHiLzvQ4WBaqgK2C4DtDbCM38o9pcmdIvBO9rFe2Ml4aaIoy67QwVzQ== X-Received: by 2002:a05:600c:26c6:b0:459:e165:2661 with SMTP id 5b1f17b1804b1-45b5185a644mr37245685e9.23.1755959316416; Sat, 23 Aug 2025 07:28:36 -0700 (PDT) Received: from hermes.local (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45b4e8f4552sm55811695e9.8.2025.08.23.07.28.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 23 Aug 2025 07:28:36 -0700 (PDT) Date: Sat, 23 Aug 2025 07:28:29 -0700 From: Stephen Hemminger To: Morten =?UTF-8?B?QnLDuHJ1cA==?= Cc: dev@dpdk.org, Thomas Monjalon , Bruce Richardson , Konstantin Ananyev , Andrew Rybchenko , Ivan Malov , Chengwen Feng Subject: Re: [PATCH v8 3/3] mbuf: optimize reset of reinitialized mbufs Message-ID: <20250823072829.0176a907@hermes.local> In-Reply-To: <20250823063002.24326-4-mb@smartsharesystems.com> References: <20250821150250.16959-1-mb@smartsharesystems.com> <20250823063002.24326-1-mb@smartsharesystems.com> <20250823063002.24326-4-mb@smartsharesystems.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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 On Sat, 23 Aug 2025 06:30:02 +0000 Morten Br=C3=B8rup wrote: > An optimized function for resetting a bulk of newly allocated > reinitialized mbufs (a.k.a. raw mbufs) was added. >=20 > Compared to the normal packet mbuf reset function, it takes advantage of > the following two details: > 1. The 'next' and 'nb_segs' fields are already reset, so resetting them > has been omitted. This doesn't matter, since they are on the same cache line the operation of touching them costs nothing.