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Message-ID: <105869.1686572748@warthog.procyon.org.uk>
Date:   Mon, 12 Jun 2023 13:25:48 +0100
From:   David Howells <dhowells@...hat.com>
To:     kernel test robot <oliver.sang@...el.com>
Cc:     dhowells@...hat.com, oe-lkp@...ts.linux.dev, lkp@...el.com,
        Linux Memory Management List <linux-mm@...ck.org>,
        Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
        Christian Brauner <brauner@...nel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        David Hildenbrand <david@...hat.com>,
        John Hubbard <jhubbard@...dia.com>,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-afs@...ts.infradead.org, linux-btrfs@...r.kernel.org,
        ecryptfs@...r.kernel.org, linux-erofs@...ts.ozlabs.org,
        linux-ext4@...r.kernel.org, cluster-devel@...hat.com,
        linux-um@...ts.infradead.org, linux-mtd@...ts.infradead.org,
        jfs-discussion@...ts.sourceforge.net, linux-nilfs@...r.kernel.org,
        linux-ntfs-dev@...ts.sourceforge.net, ntfs3@...ts.linux.dev,
        ocfs2-devel@....oracle.com,
        linux-karma-devel@...ts.sourceforge.net,
        reiserfs-devel@...r.kernel.org, ying.huang@...el.com,
        feng.tang@...el.com, fengwei.yin@...el.com
Subject: Re: [linux-next:master] [splice] 2cb1e08985: stress-ng.sendfile.ops_per_sec 11.6% improvement

kernel test robot <oliver.sang@...el.com> 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 network
protocol's sendmsg() method to process instead of using sendpage to send one
page at a time.

David

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