From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0C78C433E6 for ; Tue, 5 Jan 2021 10:27:31 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6248C2250E for ; Tue, 5 Jan 2021 10:27:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6248C2250E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 19EF685D52; Tue, 5 Jan 2021 10:27:31 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id O51eEtzYUNlY; Tue, 5 Jan 2021 10:27:30 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 94B8085D68; Tue, 5 Jan 2021 10:27:30 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 7C585C088B; Tue, 5 Jan 2021 10:27:30 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id C26CCC013A for ; Tue, 5 Jan 2021 10:27:29 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id A9E3D85D52 for ; Tue, 5 Jan 2021 10:27:29 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PwW_4j9B7--m for ; Tue, 5 Jan 2021 10:27:29 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by fraxinus.osuosl.org (Postfix) with ESMTPS id F36F985313 for ; Tue, 5 Jan 2021 10:27:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1609842447; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GnN5IEGJ/23g6PIWT40J6HpSWq+j0GIc1IYqRwgM3sQ=; b=NKn5uWKyeWsTMkyr4xrGKix6Mts/Q5mEGEVdxSVhmdc9OjdFD9hXpYcD5f1v0zIsEc5VUu Qn5QcswNvw/ozC0MUF1fzLPybv4rrRbnNso9E/H+qiXblFoqNEwOoytfK9qXp7Q7mRzpLD KxWGxMfT330takzEGy50a0TqXAHaL2Y= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-365-OgiryqcPOmOX81V2EvMReg-1; Tue, 05 Jan 2021 05:27:24 -0500 X-MC-Unique: OgiryqcPOmOX81V2EvMReg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 162F71572B; Tue, 5 Jan 2021 10:27:22 +0000 (UTC) Received: from [10.36.114.117] (ovpn-114-117.ams2.redhat.com [10.36.114.117]) by smtp.corp.redhat.com (Postfix) with ESMTP id B72D770959; Tue, 5 Jan 2021 10:27:11 +0000 (UTC) Subject: Re: [RFC v2 PATCH 0/4] speed up page allocation for __GFP_ZERO To: Liang Li References: <96BB0656-F234-4634-853E-E2A747B6ECDB@redhat.com> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: <85f16139-b499-dd02-f2bc-c3c42d57ccd8@redhat.com> Date: Tue, 5 Jan 2021 11:27:10 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Cc: Andrea Arcangeli , Michal Hocko , "Michael S. Tsirkin" , Dan Williams , Liang Li , LKML , linux-mm , Dave Hansen , Alexander Duyck , virtualization@lists.linux-foundation.org, Mel Gorman , Andrew Morton X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gMDUuMDEuMjEgMTE6MjIsIExpYW5nIExpIHdyb3RlOgo+Pj4+IFRoYXTigJhzIG1vc3RseSBh bHJlYWR5IGV4aXN0aW5nIHNjaGVkdWxpbmcgbG9naWMsIG5vPyAoSG93IG1hbnkgdm1zIGNhbiBJ IHB1dCBvbnRvIGEgc3BlY2lmaWMgbWFjaGluZSBldmVudHVhbGx5KQo+Pj4KPj4+IEl0IGRlcGVu ZHMgb24gaG93IHRoZSBzY2hlZHVsaW5nIGNvbXBvbmVudCBpcyBkZXNpZ25lZC4gWWVzLCB5b3Ug Y2FuIHB1dAo+Pj4gMTAgVk1zIHdpdGggNEM4Ryg0Q1BVLCA4RyBSQU0pIG9uIGEgaG9zdCBhbmQg MjAgVk1zIHdpdGggMkM0RyBvbgo+Pj4gYW5vdGhlciBvbmUuIEJ1dCBpZiBvbmUgdHlwZSBvZiB0 aGVtLCBlLmcuIDRDOEcgYXJlIHNvbGQgb3V0LCBjdXN0b21lcnMKPj4+IGNhbid0IGJ5IG1vcmUg NEM4RyBWTSB3aGlsZSB0aGVyZSBhcmUgc29tZSBmcmVlIDJDNEcgVk1zLCB0aGUgcmVzb3VyY2UK Pj4+IHJlc2VydmVkIGZvciB0aGVtIGNhbiBiZSBwcm92aWRlZCBhcyA0QzhHIFZNcwo+Pj4KPj4K Pj4gMS4gWW91IGNhbiwganVzdCB0aGUgc3RhcnR1cCB0aW1lIHdpbGwgYmUgYSBsaXR0bGUgc2xv d2VyPyBFLmcuLCBncm93Cj4+IHByZS1hbGxvY2F0ZWQgNEcgZmlsZSB0byA4Ry4KPj4KPj4gMi4g T3IgbGV0J3MgYmUgY3JlYXRpdmU6IHRlYWNoIFFFTVUgdG8gY29uc3RydWN0IGEgc2luZ2xlCj4+ IFJBTUJsb2NrL01lbW9yeVJlZ2lvbiBvdXQgb2YgbXVsdGlwbGUgdG1wZnMgZmlsZXMuIFdvcmtz IGFzIGxvbmcgYXMgeW91Cj4+IGRvbid0IGdvIGNyYXp5IG9uIGRpZmZlcmVudCBWTSBzaXplcyAv IHNpemUgZGlmZmVyZW5jZXMuCj4+Cj4+IDMuIEluIHlvdXIgZXhhbXBsZSBhYm92ZSwgeW91IGNh biBkeW5hbWljYWxseSByZWJhbGFuY2UgYXMgVk1zIGFyZQo+PiBnZXR0aW5nIHNvbGQsIHRvIG1h a2Ugc3VyZSB5b3UgYWx3YXlzIGhhdmUgImJpZyBvbmVzIiBseWluZyBhcm91bmQgeW91Cj4+IGNh biBzaHJpbmsgb24gZGVtYW5kLgo+Pgo+IFllcywgd2UgY2FuIGFsd2F5cyBjb21lIHVwIHdpdGgg c29tZSB3YXlzIHRvIG1ha2UgdGhpbmdzIHdvcmsuCj4gaXQgd2lsbCBtYWtlIHRoZSBkZXZlbG9w ZXIgb2YgdGhlIHVwcGVyIGxheWVyIGNvbXBvbmVudCBjcmF6eSA6KQoKSSdkIHNheSB0aGF0J3Mg bGlmZSBpbiB1cHBlciBsYXllcnMgdG8gb3B0aW1pemUgc3BlY2lhbCAoISkgdXNlIGNhc2VzLiA6 KQoKPj4+Cj4+PiBZb3UgbXVzdCBrbm93IHRoZXJlIGFyZSBhIGxvdCBvZiBmdW5jdGlvbnMgaW4g dGhlIGtlcm5lbCB3aGljaCBjYW4KPj4+IGJlIGRvbmUgaW4gdXNlcnNwYWNlLiBlLmcuIFNvbWUg b2YgdGhlIGRldmljZSBlbXVsYXRpb25zIGxpa2UgQVBJQywKPj4+IHZob3N0LW5ldCBiYWNrZW5k IHdoaWNoIGhhcyB1c2Vyc3BhY2UgaW1wbGVtZW50YXRpb24uICAgOikKPj4+IEJhZCBvciBub3Qg ZGVwZW5kcyBvbiB0aGUgYmVuZWZpdHMgdGhlIHNvbHV0aW9uIGJyaW5ncy4KPj4+IEZyb20gdGhl IHZpZXdwb2ludCBvZiBhIHVzZXIgc3BhY2UgYXBwbGljYXRpb24sIHRoZSBrZXJuZWwgc2hvdWxk Cj4+PiBwcm92aWRlIGhpZ2ggcGVyZm9ybWFuY2UgbWVtb3J5IG1hbmFnZW1lbnQgc2VydmljZS4g VGhhdCdzIHdoeQo+Pj4gSSB0aGluayBpdCBzaG91bGQgYmUgZG9uZSBpbiB0aGUga2VybmVsLgo+ Pgo+PiBBcyBJIGV4cHJlc3NlZCBhIGNvdXBsZSBvZiB0aW1lcyBhbHJlYWR5LCBJIGRvbid0IHNl ZSB3aHkgdXNpbmcKPj4gaHVnZXRsYmZzIGFuZCBpbXBsZW1lbnRpbmcgc29tZSBzb3J0IG9mIHBy ZS16ZXJvaW5nIHRoZXJlIGlzbid0IHN1ZmZpY2llbnQuCj4gCj4gRGlkIEkgbWlzcyBzb21ldGhp bmcgYmVmb3JlPyBJIHRob3VnaHQgeW91IGRvdWJ0IHRoZSBuZWVkIGZvcgo+IGh1Z2V0bGJmcyBm cmVlIHBhZ2UgcHJlIHplcm8gb3V0LiBIdWdldGxiZnMgaXMgYSBnb29kIGNob2ljZSBhbmQgaXMK PiBzdWZmaWNpZW50LgoKSSByZW1lbWJlciBldmVuIHN1Z2dlc3RpbmcgdG8gZm9jdXMgb24gaHVn ZXRsYmZzIGR1cmluZyB5b3VyIEtWTSB0YWxrCndoZW4gY2hhdHRpbmcuIE1heWJlIEkgd2FzIG5v dCBjbGVhciBiZWZvcmUuCgo+IAo+PiBXZSByZWFsbHkgZG9uJ3QgKndhbnQqIGNvbXBsaWNhdGVk IHRoaW5ncyBkZWVwIGRvd24gaW4gdGhlIG1tIGNvcmUgaWYKPj4gdGhlcmUgYXJlIHJlYXNvbmFi bGUgYWx0ZXJuYXRpdmVzLgo+Pgo+IEkgdW5kZXJzdGFuZCB5b3VyIGNvbmNlcm4sIHdlIHNob3Vs ZCBoYXZlIHN1ZmZpY2llbnQgcmVhc29uIHRvIGFkZCBhIG5ldwo+IGZlYXR1cmUgdG8gdGhlIGtl cm5lbC4gQW5kIGZvciB0aGlzIG9uZSwgaXQncyBtb3N0IHZhbHVlIGlzIHRvIG1ha2UgdGhlCj4g YXBwbGljYXRpb24ncyBsaWZlIGlzIGVhc2llci4gQW5kIGltcGxlbWVudGluZyBpdCBpbiBodWdl dGxiZnMgY2FuIGF2b2lkCj4gYWRkaW5nIG1vcmUgY29tcGxleGl0eSB0byBjb3JlIE1NLgoKRXhh Y3RseSwgdGhhdCdzIG15IHBvaW50LiBTb21lIHBlb3BsZSBtaWdodCBzdGlsbCBkaXNhZ3JlZSB3 aXRoIHRoZQpodWdldGxiZnMgYXBwcm9hY2gsIGJ1dCB0aGVyZSBpdCdzIGVhc2llciB0byBhZGQg dHVuYWJsZXMgd2l0aG91dAphZmZlY3RpbmcgdGhlIG92ZXJhbGwgc3lzdGVtLgoKLS0gClRoYW5r cywKCkRhdmlkIC8gZGhpbGRlbmIKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fClZpcnR1YWxpemF0aW9uIG1haWxpbmcgbGlzdApWaXJ0dWFsaXphdGlvbkBs aXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5v cmcvbWFpbG1hbi9saXN0aW5mby92aXJ0dWFsaXphdGlvbg==