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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28981C7EE25 for ; Mon, 12 Jun 2023 12:26:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233576AbjFLM0u (ORCPT ); Mon, 12 Jun 2023 08:26:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229699AbjFLM0r (ORCPT ); Mon, 12 Jun 2023 08:26:47 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7628122 for ; Mon, 12 Jun 2023 05:26:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1686572761; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tTMhvLLlxLduku60kqh9t4hhU2KGCMkQO9qTJKYmDvE=; b=R8KYLgos4qvJwdjnlXTsKGUW664IAn57250CaNpFr6uEvwbf2cunOShycwBAh7j7Siiims cv2au+3tq5lIHiqG63ADTRcQd+W1dWLL03HtnHzkDgwi7/50ZOLB2qCPRKG7/7R2SAxAz6 nqf0gzVkFdSSa6AN90x1L7SP2EXwEZo= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-30-AynBElupPJ6WiOJw2BAedg-1; Mon, 12 Jun 2023 08:25:57 -0400 X-MC-Unique: AynBElupPJ6WiOJw2BAedg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BDEEC3C11C67; Mon, 12 Jun 2023 12:25:55 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.67]) by smtp.corp.redhat.com (Postfix) with ESMTP id 023222026833; Mon, 12 Jun 2023 12:25:50 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <202306121557.2d17019b-oliver.sang@intel.com> References: <202306121557.2d17019b-oliver.sang@intel.com> To: kernel test robot Cc: dhowells@redhat.com, oe-lkp@lists.linux.dev, lkp@intel.com, Linux Memory Management List , Jens Axboe , Christoph Hellwig , Christian Brauner , Al Viro , David Hildenbrand , John Hubbard , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org, linux-btrfs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, cluster-devel@redhat.com, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, ocfs2-devel@oss.oracle.com, linux-karma-devel@lists.sourceforge.net, reiserfs-devel@vger.kernel.org, ying.huang@intel.com, feng.tang@intel.com, fengwei.yin@intel.com Subject: Re: [linux-next:master] [splice] 2cb1e08985: stress-ng.sendfile.ops_per_sec 11.6% improvement MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <105868.1686572748.1@warthog.procyon.org.uk> Content-Transfer-Encoding: quoted-printable Date: Mon, 12 Jun 2023 13:25:48 +0100 Message-ID: <105869.1686572748@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org kernel test robot wrote: > kernel test robot noticed a 11.6% improvement of stress-ng.sendfile.ops_= per_sec on: If it's sending to a socket, this is entirely feasible. The splice_to_socket() function now sends multiple pages in one go to the netw= ork protocol's sendmsg() method to process instead of using sendpage to send o= ne page at a time. David