Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp184503pxb; Mon, 25 Oct 2021 06:22:02 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz0U3uRbAYIO0RpV2eCYc0oeWC5GaSngn3ghXFbgNmbjSD+6c/uyb9gSfqcCyGKKvZU1egB X-Received: by 2002:aa7:cb41:: with SMTP id w1mr26849256edt.327.1635168122156; Mon, 25 Oct 2021 06:22:02 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1635168122; cv=none; d=google.com; s=arc-20160816; b=Wx8TElc/YrRGu2Qj1n1+V6DGyEdVPYeYV6kS/fbo+M8eGqc5o+8PqiG+4Li6CR1XQI olyFyVjcYl+KD0zLSFKbXeySDG7++rxsb5TX5lVk7ZH8PtfrnuveC5cDGrQf4lxCQmTX e5nFCMJpTKAClhR41P0Eyejo8t7TKowl3uafkCctVbtaBG7ajSVWcytQkv6Q1nlEZMjr tljQfjiIXFrvEjjXCZ50V3ciU5TWWTJ2k9PdfpzeHYSbgUWjg1J62adFVMdNtTPfnYg1 yB2dpbgn4wUJZosGi891fNBOA/tLQ3hZXsNfRjd4i7reBr3DG+2LXYUZb+w7cRzElOTO baIQ== 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=Nxvk0hHzmAfM88DAH5RtXToePf/f6Z6GPUNWMxT7U64=; b=IUOjT8ZMoIZwA43gr+6XFA3nZK5TJ8oQvgJEWUy494TSyn4HXET2E+Bjgkz27QHX8+ JFU4IATaaafSrFkV/neza07AkWz24hQaitmy+KTkBkzxkU5oAwLPqksI9KdN4D7zwhb0 jv05X3SEbkAWmrMyCUTUkl/vVFjP0ma22Dhqgo0PMJE61S9h8nkLPiN36dU7bSjX9Npb 5yijFvMFebjrCS44u/ssCeIMx/YJbZYtFnl8UcjmPsSbHVrHygGr0SJXbnWgmBX9W0Kf S31p8jzZAK0hiXxIelWaxHSkbCcAMwV1RlJZILQ8FhXBbEyAEyf5JO6RZvoJv0K3y7Bu rVVw== 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 r24si27688714ejy.194.2021.10.25.06.21.37; Mon, 25 Oct 2021 06:22:02 -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 S231428AbhJYISQ (ORCPT + 99 others); Mon, 25 Oct 2021 04:18:16 -0400 Received: from vmi485042.contaboserver.net ([161.97.139.209]:34550 "EHLO gentwo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231685AbhJYISL (ORCPT ); Mon, 25 Oct 2021 04:18:11 -0400 Received: by gentwo.de (Postfix, from userid 1001) id 678CBB00100; Mon, 25 Oct 2021 10:15:48 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by gentwo.de (Postfix) with ESMTP id 66D47B0006A; Mon, 25 Oct 2021 10:15:48 +0200 (CEST) Date: Mon, 25 Oct 2021 10:15:48 +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: Do we really need SLOB nowdays? In-Reply-To: <20211017135708.GA8442@kvm.asia-northeast3-a.c.our-ratio-313919.internal> 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> 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: > And one more question: > in Christoph's presentation [1], it says SLOB uses > 300 KB of memory. but on my system it uses almost 8000 KB. > what's is differences? Hmmm.... Someone already made "improvements" to SLOB? Kernel needs to be compiled for minimal overhead and debugging removed.