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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 329D1C433F5 for ; Fri, 10 Dec 2021 12:06:52 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 949356B0071; Fri, 10 Dec 2021 07:06:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 8F9A56B0072; Fri, 10 Dec 2021 07:06:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7E93F6B0074; Fri, 10 Dec 2021 07:06:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay030.a.hostedemail.com [64.99.140.30]) by kanga.kvack.org (Postfix) with ESMTP id 69BB66B0071 for ; Fri, 10 Dec 2021 07:06:41 -0500 (EST) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 25ABD20BC3 for ; Fri, 10 Dec 2021 12:06:31 +0000 (UTC) X-FDA: 78901757382.01.478745C Received: from gentwo.de (gentwo.de [161.97.139.209]) by imf09.hostedemail.com (Postfix) with ESMTP id AA76114000B for ; Fri, 10 Dec 2021 12:06:28 +0000 (UTC) Received: by gentwo.de (Postfix, from userid 1001) id 1C9A2B003EC; Fri, 10 Dec 2021 13:06:28 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by gentwo.de (Postfix) with ESMTP id 1A266B00377; Fri, 10 Dec 2021 13:06:28 +0100 (CET) Date: Fri, 10 Dec 2021 13:06:28 +0100 (CET) From: Christoph Lameter X-X-Sender: cl@gentwo.de To: Hyeonggon Yoo <42.hyeyoo@gmail.com> cc: Matthew Wilcox , Christoph Lameter , Linux Memory Management List , LKML , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka Subject: Re: Do we really need SLOB nowdays? In-Reply-To: <20211210110835.GA632811@odroid> Message-ID: References: <20211017042852.GA3050@kvm.asia-northeast3-a.c.our-ratio-313919.internal> <20211017133618.GA7989@kvm.asia-northeast3-a.c.our-ratio-313919.internal> <20211017135708.GA8442@kvm.asia-northeast3-a.c.our-ratio-313919.internal> <20211028100414.GA2928@kvm.asia-northeast3-a.c.our-ratio-313919.internal> <20211210110835.GA632811@odroid> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: AA76114000B X-Stat-Signature: 5f6r1oji1gzb11ntr38emngez4t15r3j Authentication-Results: imf09.hostedemail.com; dkim=none; spf=none (imf09.hostedemail.com: domain of cl@gentwo.org has no SPF policy when checking 161.97.139.209) smtp.mailfrom=cl@gentwo.org; dmarc=none X-HE-Tag: 1639137988-403473 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, 10 Dec 2021, Hyeonggon Yoo wrote: > > > (But I still have doubt if we can run linux on machines like that.) > > > > I sent you a series of articles about making Linux run in 1MB. > > After some time playing with the size of kernel, > I was able to run linux in 6.6MiB of RAM. and the SLOB used > around 300KiB of memory. What is the minimal size you need for SLUB?