Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp326901yba; Fri, 12 Apr 2019 04:30:49 -0700 (PDT) X-Google-Smtp-Source: APXvYqzP8DQatER2AiDbWYZ8v26rZntNUXZoMzFIcMojZBqQKyQr0ShCVuTfF7jydyi5QCejjZzp X-Received: by 2002:a63:30c5:: with SMTP id w188mr52292155pgw.76.1555068649645; Fri, 12 Apr 2019 04:30:49 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555068649; cv=none; d=google.com; s=arc-20160816; b=IZe2yEkECb6zQ+hT8UQCCw7nNNrB7jj3XAG/cH430/a9I06KnWbbeHWW6fiOESVM07 tT9G2VQ+OzlXpr9tIyxQqlrR+4gkP0Bru90dENgpTJdUn6MC0WNgLOtXjAHwNyCclCnn qqKH4aZg5Wz53IEfUFukzK4zubJMLBLpSLebpuGIvTRx+65dqFzr9QIYlFfMD7JYJBv1 S80vuV5R7M5Ehhu0lqsNwCbKpg+EOydRh+qw8QxOzvHvZG1DbURN65fIKVTHyRQRBcaf VZnHJ9pj8FK7dny3ClHHT/uyKR0uRb2DCYTmFn9Pg5lCwPpnsgQKIvGxTKSSxATMrTLO dNKQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=03ENd6/uFGBm+amFRn6QXBuSnbJmqs/fgUqGi3J6GSI=; b=eXNrw5EnqoCHR7EvvNqComlKyrCH+ccmh8is0GAtvJ3++uMqRNfTpkVdw1eh/BPlH8 2BRd/hDKOAxKanccaJswqwzBqjyaX8LyuZpZ7VM2690Ucoqw6SH8qoaxFswfyo5pzJ4a QidlVmyvb7G6K1uSqUbytXrnZTm91hr+9eIgmVzdJyLheOXN+L4nBn7DEEuhL6jjG9s7 /Q6VgK7akbBhILXW8QhFATBHhwvoh2SM6BBML7A+NyohVr6k/mNBd/nfWRHplG20IF7y iVEN3ZPvT9jArfH/Mfbl1n7PWp+8o5OiRKEX/T27G0lZX7meEMn6JSuh1Jsh6LhFB9/m KR2w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f16si32337447pgh.309.2019.04.12.04.30.33; Fri, 12 Apr 2019 04:30:49 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727063AbfDLL2U (ORCPT + 99 others); Fri, 12 Apr 2019 07:28:20 -0400 Received: from outbound-smtp17.blacknight.com ([46.22.139.234]:42963 "EHLO outbound-smtp17.blacknight.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726697AbfDLL2U (ORCPT ); Fri, 12 Apr 2019 07:28:20 -0400 Received: from mail.blacknight.com (pemlinmail01.blacknight.ie [81.17.254.10]) by outbound-smtp17.blacknight.com (Postfix) with ESMTPS id 984751C2F7F for ; Fri, 12 Apr 2019 12:28:18 +0100 (IST) Received: (qmail 4311 invoked from network); 12 Apr 2019 11:28:18 -0000 Received: from unknown (HELO techsingularity.net) (mgorman@techsingularity.net@[37.228.225.79]) by 81.17.254.9 with ESMTPSA (AES256-SHA encrypted, authenticated); 12 Apr 2019 11:28:18 -0000 Date: Fri, 12 Apr 2019 12:28:16 +0100 From: Mel Gorman To: David Rientjes Cc: Vlastimil Babka , "Tobin C. Harding" , Andrew Morton , Christoph Lameter , Pekka Enberg , Joonsoo Kim , Tejun Heo , Qian Cai , Linus Torvalds , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/1] mm: Remove the SLAB allocator Message-ID: <20190412112816.GD18914@techsingularity.net> References: <20190410024714.26607-1-tobin@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 10, 2019 at 02:53:34PM -0700, David Rientjes wrote: > > FWIW, our enterprise kernel use it (latest is 4.12 based), and openSUSE > > kernels as well (with openSUSE Tumbleweed that includes latest > > kernel.org stables). AFAIK we don't enable SLAB_DEBUG even in general > > debug kernel flavours as it's just too slow. > > > > IIRC last time Mel evaluated switching to SLUB, it wasn't a clear > > winner, but I'll just CC him for details :) > > > > We also use CONFIG_SLAB and disable CONFIG_SLAB_DEBUG for the same reason. Would it be possible to re-evaluate using mainline kernel 5.0? -- Mel Gorman SUSE Labs