Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp4299649pxb; Mon, 25 Oct 2021 01:17:32 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyeN0H6/HzJKcxWdNFyHScLwpMvGCF5Q4Ja2O5BYLNwL4/6a5I3ThS9m+NWSK3Hu01/nW3l X-Received: by 2002:a05:6a00:15c8:b0:44d:9f7e:ece2 with SMTP id o8-20020a056a0015c800b0044d9f7eece2mr17012973pfu.86.1635149852305; Mon, 25 Oct 2021 01:17:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1635149852; cv=none; d=google.com; s=arc-20160816; b=iFbq8hZOWp4woOSZHTTApEaAcQzvW1dvR7EbR5SbSdOGNGZs2Q2XPxl1SlrVPn93JU KBcCVItmzAdzAXL0Kc/hZfzi2rBrnlb8loVnYmvogYQyQ5xA1szNlbMjusve9ibZEO0o SUkEsaV/cBPc1RekdoISQcYs4O1IIgF6ERYrqPDbHLX3SQB0uqeOStcIcy9N6GwD+xfi 3WFwLZ7k9el0cUMbMdYsIcliN23Js0T7R1XJ5rsLwvCAAywF78mGttr/oLLkgNpw7Cyp OaxxgRt2tw0104USwJWkh+7oGERbOuK8m8kvprApYXTdulXnB2+y4olSjTBC8RgaAIXT KFhw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:user-agent:references:message-id :in-reply-to:subject:cc:to:from:date; bh=kbbLNl1q6MXwBWqiAAicQuh8tbyLCxY7s9rI81q9AqQ=; b=HMoQjgd0GycKpQIBU7CqgY2TKIh7fgSmcOkuVJsy+sGND3v047K348OYtymDEz7a9M UhBNJhnj6ysDDNxhpeWvJif/Ogxmf3p5syKZqlkSkuaRRpOsBd5fB2+arnw0sCcDzpsZ +Df1aaM+6MRz5gr3lpvSbLr/067KZM7fLkjXtXnZ481IOCAIRF6sjUil50er65akpvVv VzlCnyvK9k5DtBgnaZkVqlU1PWTwzXc8WXuLUPimiJw6bskjh1fFdwlFIGFiEWaM30rN xrMBHpYartH5TUmDe2EWY0r+VTtQ7cMC7do8WHdHDxxrOADR0XR7hn6ZgcwEip/SEiJI zLIA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id d9si20553988pln.400.2021.10.25.01.17.18; Mon, 25 Oct 2021 01:17:32 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230187AbhJYIQd (ORCPT + 99 others); Mon, 25 Oct 2021 04:16:33 -0400 Received: from vmi485042.contaboserver.net ([161.97.139.209]:34528 "EHLO gentwo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231745AbhJYIQa (ORCPT ); Mon, 25 Oct 2021 04:16:30 -0400 Received: by gentwo.de (Postfix, from userid 1001) id 00010B00100; Mon, 25 Oct 2021 10:14:06 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by gentwo.de (Postfix) with ESMTP id EFD55B0006A; Mon, 25 Oct 2021 10:14:06 +0200 (CEST) Date: Mon, 25 Oct 2021 10:14:06 +0200 (CEST) From: Christoph Lameter To: Hyeonggon Yoo <42.hyeyoo@gmail.com> cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka Subject: Re: [RFC] More deterministic SLOB for real time embedded systems In-Reply-To: <20211017042852.GA3050@kvm.asia-northeast3-a.c.our-ratio-313919.internal> Message-ID: References: <20211017042852.GA3050@kvm.asia-northeast3-a.c.our-ratio-313919.internal> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 17 Oct 2021, Hyeonggon Yoo wrote: > But memory usage of SLUB is too high for systems with low memory. The memory usage of SLUB without all the extras (partial slabs, debugging etc etc) is very comparable to SLOB.