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Thu, 01 Oct 2020 22:16:22 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 091MAxtU179769; Thu, 1 Oct 2020 22:16:22 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3030.oracle.com with ESMTP id 33uv2hgu3g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 01 Oct 2020 22:16:22 +0000 Received: from abhmp0020.oracle.com (abhmp0020.oracle.com [141.146.116.26]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 091MGJRx012687; Thu, 1 Oct 2020 22:16:20 GMT Received: from [192.168.2.112] (/50.38.35.18) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 01 Oct 2020 15:16:19 -0700 Subject: Re: [RFC V2] mm/vmstat: Add events for HugeTLB migration To: Anshuman Khandual , linux-mm@kvack.org Cc: Daniel Jordan , Zi Yan , John Hubbard , Oscar Salvador , Andrew Morton , linux-kernel@vger.kernel.org References: <1601445649-22163-1-git-send-email-anshuman.khandual@arm.com> From: Mike Kravetz Message-ID: <5cdfac2f-ca4c-3cd7-39af-ba942f483a21@oracle.com> Date: Thu, 1 Oct 2020 15:16:17 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <1601445649-22163-1-git-send-email-anshuman.khandual@arm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9761 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 spamscore=0 adultscore=0 suspectscore=0 malwarescore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2010010177 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9761 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 suspectscore=0 lowpriorityscore=0 spamscore=0 clxscore=1011 mlxscore=0 impostorscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2010010177 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 9/29/20 11:00 PM, Anshuman Khandual wrote: > Add following new vmstat events which will track HugeTLB page migration. > > 1. HUGETLB_MIGRATION_SUCCESS > 2. HUGETLB_MIGRATION_FAILURE > > It follows the existing semantics to accommodate HugeTLB subpages in total > page migration statistics. While here, this updates current trace event > 'mm_migrate_pages' to accommodate now available HugeTLB based statistics. > > Cc: Daniel Jordan > Cc: Zi Yan > Cc: John Hubbard > Cc: Mike Kravetz > Cc: Oscar Salvador > Cc: Andrew Morton > Cc: linux-mm@kvack.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual Thanks, Reviewed-by: Mike Kravetz -- Mike Kravetz