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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-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net 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