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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9115C7EE2D for ; Sun, 26 Feb 2023 19:51:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229763AbjBZTvJ (ORCPT ); Sun, 26 Feb 2023 14:51:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbjBZTvH (ORCPT ); Sun, 26 Feb 2023 14:51:07 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38C5FCA0A for ; Sun, 26 Feb 2023 11:51:03 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C706360C50 for ; Sun, 26 Feb 2023 19:51:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83AABC433D2; Sun, 26 Feb 2023 19:51:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1677441062; bh=2QXctkD8k3HFIzMIRhHltAB2/f2+KokissGTQsAOBGU=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=EfIBXqfAuly+kWLKq1/3UeS/SZpxE/UfiuKnucLBUhnsL+pzC3TOBPJCicsVnhyHI Hu8mdoYa1t/aK/e49MyuSuOXvvyDkSf9su6G7qIYhX/nFEaZ3AW560KtgYoOPU4Ur+ IE8zaxeJB+iQEI7NwYkurhGKaI+21NcLw2daev4M= Date: Sun, 26 Feb 2023 11:51:00 -0800 From: Andrew Morton To: Qi Zheng Cc: tkhai@ya.ru, hannes@cmpxchg.org, shakeelb@google.com, mhocko@kernel.org, roman.gushchin@linux.dev, muchun.song@linux.dev, david@redhat.com, shy828301@gmail.com, sultan@kerneltoast.com, dave@stgolabs.net, penguin-kernel@I-love.SAKURA.ne.jp, paulmck@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 0/8] make slab shrink lockless Message-Id: <20230226115100.7e12bda7931dd65dbabcebe3@linux-foundation.org> In-Reply-To: <20230226144655.79778-1-zhengqi.arch@bytedance.com> References: <20230226144655.79778-1-zhengqi.arch@bytedance.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 26 Feb 2023 22:46:47 +0800 Qi Zheng wrote: > Hi all, > > This patch series aims to make slab shrink lockless. What an awesome changelog. > 2. Survey > ========= Especially this part. Looking through all the prior efforts and at this patchset I am not immediately seeing any statements about the overall effect upon real-world workloads. For a good example, does this patchset measurably improve throughput or energy consumption on your servers?