From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f198.google.com (mail-wr0-f198.google.com [209.85.128.198]) by kanga.kvack.org (Postfix) with ESMTP id F03036B0365 for ; Tue, 13 Jun 2017 05:59:00 -0400 (EDT) Received: by mail-wr0-f198.google.com with SMTP id v104so28643036wrb.6 for ; Tue, 13 Jun 2017 02:59:00 -0700 (PDT) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com. [148.163.158.5]) by mx.google.com with ESMTPS id 68si10603641wmv.29.2017.06.13.02.58.59 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 13 Jun 2017 02:58:59 -0700 (PDT) Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v5D9wmLM098677 for ; Tue, 13 Jun 2017 05:58:58 -0400 Received: from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110]) by mx0a-001b2d01.pphosted.com with ESMTP id 2b1x82tm4d-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 13 Jun 2017 05:58:57 -0400 Received: from localhost by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 13 Jun 2017 10:58:56 +0100 Subject: Re: [RFC v4 00/20] Speculative page faults References: <1497018069-17790-1-git-send-email-ldufour@linux.vnet.ibm.com> <20170609150126.GI21764@dhcp22.suse.cz> <83cf1566-3e76-d3fa-10a8-d83bbf9fd568@linux.vnet.ibm.com> <20170609163520.GB9332@dhcp22.suse.cz> From: Laurent Dufour Date: Tue, 13 Jun 2017 11:58:50 +0200 MIME-Version: 1.0 In-Reply-To: <20170609163520.GB9332@dhcp22.suse.cz> Content-Type: text/plain; charset=utf-8 Content-Language: fr Content-Transfer-Encoding: 7bit Message-Id: <04119fc4-2e7c-a56d-db4c-23860e6cc9a0@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: paulmck@linux.vnet.ibm.com, peterz@infradead.org, akpm@linux-foundation.org, kirill@shutemov.name, ak@linux.intel.com, dave@stgolabs.net, jack@suse.cz, Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org, haren@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com, npiggin@gmail.com, bsingharora@gmail.com On 09/06/2017 18:35, Michal Hocko wrote: > On Fri 09-06-17 17:25:51, Laurent Dufour wrote: > [...] >> Thanks Michal for your feedback. >> >> I mostly focused on this database workload since this is the one where >> we hit the mmap_sem bottleneck when running on big node. On my usual >> victim node, I checked for basic usage like kernel build time, but I >> agree that's clearly not enough. >> >> I try to find details about the 'kbench' you mentioned, but I didn't get >> any valid entry. >> Would you please point me on this or any other bench tool you think will >> be useful here ? > > Sorry I meant kernbech (aka parallel kernel build). Other highly threaded > workloads doing a lot of page faults and address space modification > would be good to see as well. I wish I could give you much more > comprehensive list but I am not very good at benchmarks. > Thanks Michal, I found kernbench 0.5, I will give it a try. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org