From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f54.google.com (mail-wm0-f54.google.com [74.125.82.54]) by dpdk.org (Postfix) with ESMTP id 0AB5E567E for ; Tue, 24 Nov 2015 22:14:47 +0100 (CET) Received: by wmww144 with SMTP id w144so155870361wmw.1 for ; Tue, 24 Nov 2015 13:14:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:organization:user-agent :in-reply-to:references:mime-version:content-transfer-encoding :content-type; bh=nE0isOXyPdmCTHpHF+t4BzJuER9NPjRjIGEmsEAk12w=; b=UvQukSASojsLcnLE1fRTAiF08QjbZnlch0NU0+8WBoBmsdcRfXlAu2od8PyUMZ93ye /OcZjWiD5zVEdSxcbWb6nSLdzuevdwKTZ6qz+YSdknjZ/jgsgJhNxkOwKRecTvy+qd6N PZRwctapsCwG42bTKHCkWK/8JsNhQwDv4bZRt+6X3JKJY6iP6/UmDs/EwUT3aS4QXeEr O5iHknWBZeKjWDPJ3PCZlWGaxvj4ADwBGIiONTNLIrvhi/xoGWjPDKr83pKNmu4D7z0M VJ62Ba3nd0tz60hW8OUTF/1avXxsMdL0m0OrdsH2VD+iEX7fn+ASjV0AQYgTPNLHJxOJ SX+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:organization :user-agent:in-reply-to:references:mime-version :content-transfer-encoding:content-type; bh=nE0isOXyPdmCTHpHF+t4BzJuER9NPjRjIGEmsEAk12w=; b=NV4GAQUXAnvHXweyCzjT9u3kEgKq/9OZNRXxs8OFzBBYWropsx0zCsJ4RnzvRkbuLi cDh4Z7djjo0eSavoxNguK3+ZwJEz6sUYKIzipN0OZia4Jq1O4d5o95B9CaI1aozUcA3C XGdRRLeBK4974YiL3jst6QJFFtw8hWX+qyMMeRRkANK8cKwofhkL6G3Zirc/PnhqazYs L33acFrmNjmXoTOjANhWBMufT4NkY1s35TLS9Z3etAgRTUdsD4pWem6WECSaGWLx3fj9 Vv3p5oeNhP1CoEdBJXfusdDqdTNWvRP8KunhSK/uL3F/UjvIjfGjhoNXB6qAi/OKBJ7d q3TA== X-Gm-Message-State: ALoCoQlXrlb3tuLHxWIVTe5fSNaoT+N+xc279FX2oJmJX29WehnA6c+ssbXrxdoHuii3R7h/U85f X-Received: by 10.28.176.70 with SMTP id z67mr537013wme.5.1448399686850; Tue, 24 Nov 2015 13:14:46 -0800 (PST) Received: from xps13.localnet (136-92-190-109.dsl.ovh.fr. [109.190.92.136]) by smtp.gmail.com with ESMTPSA id pc2sm20012838wjb.11.2015.11.24.13.14.45 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 24 Nov 2015 13:14:46 -0800 (PST) From: Thomas Monjalon To: Stephen Hemminger , Zhihong Wang Date: Tue, 24 Nov 2015 22:13:28 +0100 Message-ID: <1640963.TLMeDD9tfp@xps13> Organization: 6WIND User-Agent: KMail/4.14.10 (Linux/4.1.6-1-ARCH; KDE/4.14.11; x86_64; ; ) In-Reply-To: <20151122182800.397e0701@xeon-e3> References: <1448219615-63746-1-git-send-email-zhihong.wang@intel.com> <1448219615-63746-3-git-send-email-zhihong.wang@intel.com> <20151122182800.397e0701@xeon-e3> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH 2/2] lib/librte_eal: Remove unnecessary hugepage zero-filling X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Nov 2015 21:14:47 -0000 2015-11-22 18:28, Stephen Hemminger: > On Sun, 22 Nov 2015 14:13:35 -0500 > Zhihong Wang wrote: > > > The kernel fills new allocated (huge) pages with zeros. > > DPDK just has to populate page tables to trigger the allocation. > > > > Signed-off-by: Zhihong Wang > > Nice, especially on slow machines or with large memory. > > Acked-by: Stephen Hemminger Yes very nice. I think it's too late to integrate this change which can have some unpredictable side effects. Do you agree to wait for 2.3?