From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v2 03/23] x86: zero BSS using stosl instead of stosb Date: Tue, 21 Jul 2015 03:37:48 -0600 Message-ID: <55AE2F0C02000078000938D2@prv-mh.provo.novell.com> References: <1437402558-7313-1-git-send-email-daniel.kiper@oracle.com> <1437402558-7313-4-git-send-email-daniel.kiper@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1ZHTzm-0007d0-8p for xen-devel@lists.xenproject.org; Tue, 21 Jul 2015 09:37:54 +0000 In-Reply-To: <1437402558-7313-4-git-send-email-daniel.kiper@oracle.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Daniel Kiper Cc: andrew.cooper3@citrix.com, keir@xen.org, xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org >>> On 20.07.15 at 16:28, wrote: ... because of ??? Nowadays - with X86_FEATURE_ERMS - rep stosb is expected to be faster than rep stosl. Jan