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Shutemov" References: <20210614145536.GB28801@xsang-OptiPlex-9020> From: "Aneesh Kumar K.V" Message-ID: Date: Mon, 14 Jun 2021 21:38:44 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 In-Reply-To: <20210614145536.GB28801@xsang-OptiPlex-9020> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-GUID: JldCXgJL5a2CFqaV3FoVchIir4sdoWR- X-Proofpoint-ORIG-GUID: U9h-5n8hiO_SNRGUwRzYFXGPSCzYZYqM Content-Transfer-Encoding: 7bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-06-14_10:2021-06-14,2021-06-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 malwarescore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 mlxscore=0 adultscore=0 priorityscore=1501 clxscore=1011 bulkscore=0 spamscore=0 mlxlogscore=942 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106140102 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/14/21 8:25 PM, kernel test robot wrote: > > > Greeting, > > FYI, we noticed a -29.4% regression of vm-scalability.throughput due to commit: > > > commit: ecf8443e51a862b261313c2319ab4e4aed9e6b7e ("[PATCH v7 02/11] mm/mremap: Fix race between MOVE_PUD mremap and pageout") > url: https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/Speedup-mremap-on-ppc64/20210607-135424 > base: https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git next > > We dropped that approach and is now using https://lore.kernel.org/linux-mm/20210610083549.386085-1-aneesh.kumar@linux.ibm.com Instead of pud lock we are now using rmap lock with mremap. Can you check with that series? -aneesh