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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 CABF3C432C0 for ; Thu, 21 Nov 2019 09:35:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 911F92068F for ; Thu, 21 Nov 2019 09:35:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="IUkt7qRW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727073AbfKUJfU (ORCPT ); Thu, 21 Nov 2019 04:35:20 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:20174 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726014AbfKUJfU (ORCPT ); Thu, 21 Nov 2019 04:35:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574328919; 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=ellE2LMQlyr1oqbNW0PVBlumv0gdCivUtR6eDXCzn8Y=; b=IUkt7qRWJJGsS2yrl72o8BU2O3DSDXaLmo5ZZpdu4D9ZTWuN7OiSlmtzJ1PQn+TwzIwaEb bVfsuqPJcFbv+BrWwFb44Y1qge4IFtN2CPWxnwTV1QbJTyl3BlBT9g6/FptO8Hv3+H9UT1 vTg2TZUBv0BeCMSwaVl1pVG3nVPrm6M= 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-214-dkYJB6xPNQqfd13HZHr9bA-1; Thu, 21 Nov 2019 04:35:16 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C738D801E58; Thu, 21 Nov 2019 09:35:14 +0000 (UTC) Received: from [10.36.116.214] (ovpn-116-214.ams2.redhat.com [10.36.116.214]) by smtp.corp.redhat.com (Postfix) with ESMTP id 96E48101F6CA; Thu, 21 Nov 2019 09:35:13 +0000 (UTC) Subject: Re: [PATCH] memory subsystem: cache memory blocks in radix tree to accelerate lookup To: Scott Cheloha , linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Greg Kroah-Hartman Cc: nathanl@linux.ibm.com, ricklind@linux.vnet.ibm.com References: <20191120192536.1980-1-cheloha@linux.vnet.ibm.com> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: Date: Thu, 21 Nov 2019 10:35:12 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191120192536.1980-1-cheloha@linux.vnet.ibm.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: dkYJB6xPNQqfd13HZHr9bA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252; format=flowed Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 20.11.19 20:25, Scott Cheloha wrote: > Searching for a particular memory block by id is slow because each block > device is kept in an unsorted linked list on the subsystem bus. Oh, and you patch subject should be "drivers/base/memory.c: cache memory [...]" --=20 Thanks, David / dhildenb