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Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <5b8ce555-7451-d977-22e7-e5d080ef2e1a@kernel.dk> References: <5b8ce555-7451-d977-22e7-e5d080ef2e1a@kernel.dk> <74f6fb34-c4c2-6a7e-3614-78c34246c6bd@gmail.com> <20201123080506.GA30578@infradead.org> <160596800145.154728.7192318545120181269.stgit@warthog.procyon.org.uk> <160596801020.154728.15935034745159191564.stgit@warthog.procyon.org.uk> <516984.1606127474@warthog.procyon.org.uk> <1155891.1606222222@warthog.procyon.org.uk> To: Jens Axboe Cc: dhowells@redhat.com, Pavel Begunkov , Christoph Hellwig , Matthew Wilcox , Alexander Viro , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 01/29] iov_iter: Switch to using a table of operations MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2791167.1606497249.1@warthog.procyon.org.uk> Date: Fri, 27 Nov 2020 17:14:09 +0000 Message-ID: <2791168.1606497249@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jens Axboe wrote: > which looks to be around a 6% drop. That's quite a lot. > which looks to be around 2-3%, but we're also running at a much > slower rate (830K vs ~2.3M). That's still a lot. Thanks for having a look! David