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Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20201203064536.GE27350@xsang-OptiPlex-9020> References: <20201203064536.GE27350@xsang-OptiPlex-9020> To: kernel test robot Cc: dhowells@redhat.com, lkp@lists.01.org, lkp@intel.com, ying.huang@intel.com, feng.tang@intel.com, zhengjun.xing@intel.com, Pavel Begunkov , Matthew Wilcox , Jens Axboe , Alexander Viro , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [iov_iter] 9bd0e337c6: will-it-scale.per_process_ops -4.8% regression MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <98293.1607082708.1@warthog.procyon.org.uk> Content-Transfer-Encoding: quoted-printable Date: Fri, 04 Dec 2020 11:51:48 +0000 Message-ID: <98294.1607082708@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kernel test robot wrote: > FYI, we noticed a -4.8% regression of will-it-scale.per_process_ops due = to commit: > = > = > commit: 9bd0e337c633aed3e8ec3c7397b7ae0b8436f163 ("[PATCH 01/29] iov_ite= r: Switch to using a table of operations") Out of interest, would it be possible for you to run this on the tail of t= he series on the same hardware? Thanks, David