From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 8CCAA6B0260 for ; Tue, 17 Jan 2017 11:49:15 -0500 (EST) Received: by mail-pf0-f199.google.com with SMTP id 204so295006969pfx.1 for ; Tue, 17 Jan 2017 08:49:15 -0800 (PST) Received: from mail-pg0-x242.google.com (mail-pg0-x242.google.com. [2607:f8b0:400e:c05::242]) by mx.google.com with ESMTPS id b7si769556pli.5.2017.01.17.08.49.14 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 17 Jan 2017 08:49:14 -0800 (PST) Received: by mail-pg0-x242.google.com with SMTP id t6so4329160pgt.1 for ; Tue, 17 Jan 2017 08:49:14 -0800 (PST) Date: Tue, 17 Jan 2017 08:49:13 -0800 From: Tejun Heo Subject: Re: [PATCHSET v2] slab: make memcg slab destruction scalable Message-ID: <20170117164913.GB28948@mtj.duckdns.org> References: <20170114184834.8658-1-tj@kernel.org> <20170117001256.GB25218@js1304-P5Q-DELUXE> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170117001256.GB25218@js1304-P5Q-DELUXE> Sender: owner-linux-mm@kvack.org List-ID: To: Joonsoo Kim Cc: vdavydov.dev@gmail.com, cl@linux.com, penberg@kernel.org, rientjes@google.com, akpm@linux-foundation.org, jsvana@fb.com, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org, kernel-team@fb.com Hello, On Tue, Jan 17, 2017 at 09:12:57AM +0900, Joonsoo Kim wrote: > Could you confirm that your series solves the problem that is reported > by Doug? It would be great if the result is mentioned to the patch > description. > > https://bugzilla.kernel.org/show_bug.cgi?id=172991 So, that's an issue in the creation path which is already resolved by switching to an ordered workqueue (it'd probably be better to use per-cpu wq w/ @max_active == 1 tho). This patchset is about relesae path. slab_mutex contention would definitely go down with this but I don't think there's more connection to it than that. Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org