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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 X-Rspamd-Queue-Id: AB7FBC001F X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: 3gcrtykwhehwegz6bamy6fs4xcyd6e4g X-HE-Tag: 1686572759-179782 X-HE-Meta: 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 EXU/A8R2 aYcJ1t6/jSHJoKQDHV7peSujtd99zyqAmhhlD4NniGtZ6M01qA1pC8SIWnNsCgDT5nQG2NqrpF5qx/umQs6zBrpEFmUSdYJ6FvA626MDel5xf1xJMPRXpkxG/moCIFG+8Q0PlQYaQIsFC4r5CFg6QMXO6SQVYVb345i95qJRVwv5JCudRxGKs2HBz4pTUs83/9XeLWQTjLCOhdoL6TIvS6GLamb2PppFlAQOz X-Bogosity: Ham, tests=bogofilter, spamicity=0.000373, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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