From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C19FC43460 for ; Tue, 13 Apr 2021 14:53:22 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9880E60551 for ; Tue, 13 Apr 2021 14:53:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9880E60551 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 25081100EB856; Tue, 13 Apr 2021 07:53:21 -0700 (PDT) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=5.9.137.197; helo=mail.skyhub.de; envelope-from=bp@alien8.de; receiver= Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 76364100EB84F for ; Tue, 13 Apr 2021 07:53:18 -0700 (PDT) Received: from zn.tnic (p200300ec2f0b8400dc5952bb5bba9b51.dip0.t-ipconnect.de [IPv6:2003:ec:2f0b:8400:dc59:52bb:5bba:9b51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 84C811EC0118; Tue, 13 Apr 2021 16:53:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1618325596; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=Zng+s8B6UzBFhAFGTLiOGYpjULkd5L9TFnuYZ/fZJMw=; b=sfqiW9QpHo+w0Mdf7b+STf9grriXJSRP8r96BYJ9IR7mx6BfYZWWjzZJEsCi3zCnfkyBt4 KzXh30fBsl8U9/Z59iYeeErqvQkOfW2fuWqUtSfDzg7KtMbyyb+7/X0CLl0fZ2SK/qFAUt ZFSanaWN0PkXvf+qbFA2pVZNiV4KdpU= Date: Tue, 13 Apr 2021 16:53:15 +0200 From: Borislav Petkov To: Kemeng Shi Subject: Re: Re: [PATCH] x86: Accelerate copy_page with non-temporal in X86 Message-ID: <20210413145315.GF16519@zn.tnic> References: <3f28adee-8214-fa8e-b368-eaf8b193469e@huawei.com> <20210413110137.GD16519@zn.tnic> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Message-ID-Hash: T53D2VW5ENWA2QYWUVOYY3HFYIYOXYVH X-Message-ID-Hash: T53D2VW5ENWA2QYWUVOYY3HFYIYOXYVH X-MailFrom: bp@alien8.de X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Tue, Apr 13, 2021 at 08:54:55PM +0800, Kemeng Shi wrote: > Yes. And NT stores should be better for copy_page especially copying a lot > of pages as only partial memory of copied page will be access recently. I thought "should be better" too last time when I measured rep; movs vs NT stores but actual measurements showed no real difference. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette _______________________________________________ Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org To unsubscribe send an email to linux-nvdimm-leave@lists.01.org