Message ID | D3E216785288A145B7BC975F83A2ED103FF0961E@szxeml556-mbs.china.huawei.com |
---|---|
State | New |
Headers | show
Return-Path: <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 4774F2C008A for <incoming@patchwork.ozlabs.org>; Sat, 31 Aug 2013 17:46:14 +1000 (EST) Received: from localhost ([::1]:53634 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>) id 1VFfsp-0003Ts-NY for incoming@patchwork.ozlabs.org; Sat, 31 Aug 2013 03:46:11 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43638) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <haoyu.zhang@huawei.com>) id 1VFfsV-0003Tk-2h for qemu-devel@nongnu.org; Sat, 31 Aug 2013 03:45:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <haoyu.zhang@huawei.com>) id 1VFfsP-00041h-1r for qemu-devel@nongnu.org; Sat, 31 Aug 2013 03:45:51 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:2246) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <haoyu.zhang@huawei.com>) id 1VFfsO-00040j-1q for qemu-devel@nongnu.org; Sat, 31 Aug 2013 03:45:44 -0400 Received: from 172.24.2.119 (EHLO szxeml214-edg.china.huawei.com) ([172.24.2.119]) by szxrg03-dlp.huawei.com (MOS 4.4.2a-FCS FastPath queued) with ESMTP id ADQ72349; Sat, 31 Aug 2013 15:45:37 +0800 (CST) Received: from SZXEML408-HUB.china.huawei.com (10.82.67.95) by szxeml214-edg.china.huawei.com (172.24.2.29) with Microsoft SMTP Server (TLS) id 14.1.323.7; Sat, 31 Aug 2013 15:45:36 +0800 Received: from szxeml556-mbs.china.huawei.com ([169.254.4.122]) by szxeml408-hub.china.huawei.com ([10.82.67.95]) with mapi id 14.01.0323.007; Sat, 31 Aug 2013 15:45:28 +0800 From: "Zhanghaoyu (A)" <haoyu.zhang@huawei.com> To: Gleb Natapov <gleb@redhat.com>, "pl@kamp.de" <pl@kamp.de>, Eric Blake <eblake@redhat.com>, "quintela@redhat.com" <quintela@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, =?iso-8859-1?Q?Andreas_F=E4rber?= <afaerber@suse.de>, "xiaoguangrong@linux.vnet.ibm.com" <xiaoguangrong@linux.vnet.ibm.com> Thread-Topic: [Qemu-devel] vm performance degradation after kvm live migration or save-restore with EPT enabled Thread-Index: AQHOkbaxdkV5F9Wm1UKTwWFUp0+XEpmFxhWAgACJGdD//4YsAIACAzuAgAEZf2D//8j1gIAhVDgA Date: Sat, 31 Aug 2013 07:45:28 +0000 Message-ID: <D3E216785288A145B7BC975F83A2ED103FF0961E@szxeml556-mbs.china.huawei.com> References: <D3E216785288A145B7BC975F83A2ED103FEF60C4@szxeml556-mbx.china.huawei.com> <20130729234716.GA8136@amt.cnet> <D3E216785288A145B7BC975F83A2ED103FEF6E4C@szxeml556-mbx.china.huawei.com> <20130801061650.GJ7484@redhat.com> <D3E216785288A145B7BC975F83A2ED103FEF8B6F@szxeml556-mbx.china.huawei.com> <20130805084309.GE2258@redhat.com> <D3E216785288A145B7BC975F83A2ED103FEF8BAF@szxeml556-mbx.china.huawei.com> <20130805093747.GJ2258@redhat.com> <D3E216785288A145B7BC975F83A2ED103FEF91EE@szxeml556-mbx.china.huawei.com> <D3E216785288A145B7BC975F83A2ED103FEF9455@szxeml556-mbx.china.huawei.com> <20130807055223.GG15901@redhat.com> In-Reply-To: <20130807055223.GG15901@redhat.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-cr-hashedpuzzle: ElUj M9PG S4KW XeQ+ iEoF y6lb 68ue ADYb2Q== AHGlbg== AHYMnA== AJ+mjw== ALI4wQ== ALK3Ww== ANgzGA== AOg1VQ== AXnK9g==; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Cc: Marcelo Tosatti <mtosatti@redhat.com>, "Huangweidong \(C\)" <weidong.huang@huawei.com>, KVM <kvm@vger.kernel.org>, "Michael S. Tsirkin" <mst@redhat.com>, Xiejunyong <xiejunyong@huawei.com>, Luonengjun <luonengjun@huawei.com>, qemu-devel <qemu-devel@nongnu.org>, Xiahai <xiahai@huawei.com>, Zanghongyong <zanghongyong@huawei.com>, Xin Rong Fu <XRFu@novell.com>, Yi Li <YiLi@novell.com>, Bruce Rogers <brogers@suse.com>, Hanweidong <hanweidong@huawei.com> Subject: Re: [Qemu-devel] vm performance degradation after kvm live migration or save-restore with EPT enabled X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org |
--- qemu-1.5.1/arch_init.c 2013-06-27 05:47:29.000000000 +0800 +++ qemu-1.5.1_fix3/arch_init.c 2013-08-28 19:43:42.000000000 +0800 @@ -842,7 +842,6 @@ static int ram_load(QEMUFile *f, void *o if (ch == 0 && (!kvm_enabled() || kvm_has_sync_mmu()) && getpagesize() <= TARGET_PAGE_SIZE) { - qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED); } #endif } else if (flags & RAM_SAVE_FLAG_PAGE) {