From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751604AbcFXSmY (ORCPT ); Fri, 24 Jun 2016 14:42:24 -0400 Received: from mail-by2on0105.outbound.protection.outlook.com ([207.46.100.105]:39424 "EHLO na01-by2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750996AbcFXSmW (ORCPT ); Fri, 24 Jun 2016 14:42:22 -0400 From: "Kani, Toshimitsu" To: "snitzer@redhat.com" CC: "linux-raid@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "dan.j.williams@intel.com" , "dm-devel@redhat.com" , "ross.zwisler@linux.intel.com" , "linux-nvdimm@ml01.01.org" , "agk@redhat.com" Subject: Re: dm stripe: add DAX support Thread-Topic: dm stripe: add DAX support Thread-Index: AQHRzkZSRk6OnQwQlkOK5icGBcW5Jp/487gA Date: Fri, 24 Jun 2016 18:42:20 +0000 Message-ID: <1466793738.3504.404.camel@hpe.com> References: <1466792610-30369-1-git-send-email-toshi.kani@hpe.com> <20160624182859.GD13898@redhat.com> In-Reply-To: <20160624182859.GD13898@redhat.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=toshi.kani@hpe.com; x-originating-ip: [15.219.163.9] x-ms-office365-filtering-correlation-id: d798eeed-fbe0-40b5-a0b9-08d39c5f463b x-microsoft-exchange-diagnostics: 1;CS1PR84MB0005;6:7qmrof1w3aUqnKrpA3hh1dA+YLUcrdVrgLmwGXnfxsFlQQfzTBM6ytq93VfIjhq0n8acQ4CNmhqRaKxX6sKrcZ6SNGARkmJIrv83AXRHlSB5Obhrf5F1CuU6YqRK+N3HpVBvG7Q/9+CqDaFLO5bCE6QNg77OZyGBFhCcPa+x6ose5MhH187yVFNPg/WmqTXy1Wi4PwchKetXo53fDm8j4jqQgPRFNNNN4Id+t/2udowiIGC/ZE4VPIkWh4JnBbq3B8bv815gnK+8x9CVn8G9aw7n400dFucuyjfOQAJ03KKQr2mErSbYiR9QTPolfipg;5:tkEUvoBlROiN1If8WrH85o3Ozmxz6tzZSixlm1H/dg74ETlIHxHll3Z7lxNAAZL3WnzfhsXG7+8erFEcTa40QP7WyLxZNLlZLLS91CTL/r5q6jPoYOb18o85Vs7ha+oG71Mf07EnoIdctP9+Nl8ZFg==;24:rxk4mjzV5G5v6dD7EBOIkmaL1Xy/5yHnmMSKJSm9TSDdgYgv9EfawilfaxI1tQltlJQhbuerYLFCtSb90nZZ7bDzwsWnIM2AcSC/z5TRQn8=;7:tv87poLqse4IRNshSiRNYkyyYeBdkKkvCU/NNsOuB9wdNHHO4VrxP3qvFqcXoQ9irKSFTHKVHtjEX0F3x9jkeBCowrK6igNyvlBgy1UkxjEszqH2F+uC+BrfMP2+ZbEejXAYhPz89neh9/y/Vk4WZXNWRcWyc9UD3RoiIkQfPDyOqe9jpPKHoZykIsElo0popGbXAyGzBo3/IqIUM3RASYFel+X365rUoBZPpltKjkSHpu1nqT5SjgPpna0TG1zl1/lqM9eP44M776BxfOerew== x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:CS1PR84MB0005; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(227479698468861); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(601004)(2401047)(8121501046)(5005006)(10201501046)(3002001);SRVR:CS1PR84MB0005;BCL:0;PCL:0;RULEID:;SRVR:CS1PR84MB0005; x-forefront-prvs: 0983EAD6B2 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(7916002)(24454002)(189002)(199003)(377424004)(33646002)(92566002)(68736007)(2501003)(2900100001)(87936001)(3846002)(11100500001)(6116002)(36756003)(586003)(2950100001)(66066001)(77096005)(103116003)(102836003)(54356999)(76176999)(19580395003)(19580405001)(50986999)(101416001)(86362001)(105586002)(106116001)(8936002)(106356001)(2351001)(3280700002)(1730700003)(81156014)(81166006)(4326007)(8676002)(3660700001)(7846002)(7736002)(2906002)(99286002)(305945005)(122556002)(10400500002)(5002640100001)(5640700001)(110136002)(97736004)(189998001);DIR:OUT;SFP:1102;SCL:1;SRVR:CS1PR84MB0005;H:CS1PR84MB0005.NAMPRD84.PROD.OUTLOOK.COM;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:1;LANG:en; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 X-OriginatorOrg: hpe.com X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Jun 2016 18:42:20.1367 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 105b2061-b669-4b31-92ac-24d304d195dc X-MS-Exchange-Transport-CrossTenantHeadersStamped: CS1PR84MB0005 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id u5OIgT2b026916 On Fri, 2016-06-24 at 14:29 -0400, Mike Snitzer wrote: > On Fri, Jun 24 2016 at  2:23pm -0400, > Toshi Kani wrote:  : > Thanks, once jens queues the block changes I'll be able to pull this in > to linux-dm.git > > BTW, if in your testing you could evaluate/quantify any extra overhead > from DM that'd be useful to share.  It could be there are bottlenecks > that need to be fixed, etc. I ran some performance tests as sanity checks (results are in ballpark), but have not verified them carefully.  Yes, I will check to see if there are any bottlenecks. Thanks! -Toshi