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=-1.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 B38B8C10F00 for ; Fri, 22 Feb 2019 18:20:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 86F76206B6 for ; Fri, 22 Feb 2019 18:20:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=intel-com.20150623.gappssmtp.com header.i=@intel-com.20150623.gappssmtp.com header.b="GN1D41yy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727268AbfBVSUV (ORCPT ); Fri, 22 Feb 2019 13:20:21 -0500 Received: from mail-oi1-f194.google.com ([209.85.167.194]:33405 "EHLO mail-oi1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726246AbfBVSUU (ORCPT ); Fri, 22 Feb 2019 13:20:20 -0500 Received: by mail-oi1-f194.google.com with SMTP id z14so2478462oid.0 for ; Fri, 22 Feb 2019 10:20:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=UiFqq9fKUY52GYBPs9UIqyS4mptDo3CU893hKHjGS74=; b=GN1D41yy989ENSk/QaWlIPSo80f0ecxNC50ye26M8YOCiIc0C43TXgsMFGuWz7RT+H bK3/xGZRWd47wfLf5VW9mIyR4zdpAyw9YG/d+HfKhwkEX7fXuf0krOAuXKTivczfMkQ9 fEMRPqKfupripK8WyiBo1CmsL4GFk6waMmOKGxI7xkkaGoTK1vpaup1DPcJUPkqS1don f3zBOuFxwizTC/RJH8GLJwomUdcCeRGZdv4Iy0Ys9vzRe16gSgojWFC+3KEv05eUpDei 8gNzcU4aCFXVYdFo7/ml34OOOgzIPqNts2RVdBtBY36x548tTuxpPdW/MxZkK6O3ZjS1 GNeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=UiFqq9fKUY52GYBPs9UIqyS4mptDo3CU893hKHjGS74=; b=JjRFuF0ZEDbuJODZf6sZRAZQXaON/iDDLGlYj536Amms6y8q5CwOvXwxNXV+I/vzve Fa1Bec1hdQqx90ZMO3R49/1HhoJ2eTMlHyV8rokiLEknudkWhBXZf9NQK9WMKlWrvXkD VUROWH1tgAUqr08FBYAryK2D3f8YtHBtinRJsj5vJL517luVjBXaESVsOyjC25/JsUo3 RlTNVhSKhPPPYvemj5myup3us6GM/EfXV1RIxMiPwzA/VmVhWzWsjFCUZCQGrA8sx/6P yiDAlMSLke5LNf/6HHt7v6nZU76tXzSI9vMXLaGvygxGiN6C9HAZBoO+ipMd2aGIVrf8 ziAA== X-Gm-Message-State: AHQUAubuSVxVDeHR0D8gTNuXZbHUYHt07cpdWerTqy7bltguV/vs2XTY pbx/KmuwJnZX5pqkI0sQfK/qUX2nAhkz1vhtZ5AOBA== X-Google-Smtp-Source: AHgI3IZ3GjohG8ZeA76M7eOjYWudq1T/tMGFoHWrlRHyeUncjvHws5E6JvWGfIvPEESyBMwC3C4GI6y40ZeIw13ln24= X-Received: by 2002:aca:32c3:: with SMTP id y186mr3201069oiy.118.1550859619873; Fri, 22 Feb 2019 10:20:19 -0800 (PST) MIME-Version: 1.0 References: <20190214171017.9362-1-keith.busch@intel.com> <20190214171017.9362-7-keith.busch@intel.com> <29336223-b86e-3aca-ee5a-276d1c404b96@inria.fr> <20190222180944.GD10237@localhost.localdomain> In-Reply-To: <20190222180944.GD10237@localhost.localdomain> From: Dan Williams Date: Fri, 22 Feb 2019 10:20:08 -0800 Message-ID: Subject: Re: [PATCHv6 06/10] node: Add memory-side caching attributes To: Keith Busch Cc: Brice Goglin , Linux Kernel Mailing List , Linux ACPI , Linux MM , Linux API , Greg Kroah-Hartman , Rafael Wysocki , Dave Hansen Content-Type: text/plain; charset="UTF-8" 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 Fri, Feb 22, 2019 at 10:09 AM Keith Busch wrote: > > On Fri, Feb 22, 2019 at 11:12:38AM +0100, Brice Goglin wrote: > > Le 14/02/2019 =C3=A0 18:10, Keith Busch a =C3=A9crit : > > > +What: /sys/devices/system/node/nodeX/memory_side_cache/= indexY/size > > > +Date: December 2018 > > > +Contact: Keith Busch > > > +Description: > > > + The size of this memory side cache in bytes. > > > > > > Hello Keith, > > > > CPU-side cache size is reported in kilobytes: > > > > $ cat > > /sys/devices/system/cpu/cpu0/cache/index*/size > > > > 32K > > 32K > > 256K > > 4096K > > > > Can you do the same of memory-side caches instead of reporting bytes? > > Ok, will do. Ugh, please no. Don't optimize sysfs for human consumption. That 'K' now needs to be parsed.