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 X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09C45C43215 for ; Wed, 27 Nov 2019 16:26:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C3A232071E for ; Wed, 27 Nov 2019 16:26:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3A232071E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6B3C76B04BF; Wed, 27 Nov 2019 11:26:13 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 664B66B04C0; Wed, 27 Nov 2019 11:26:13 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 579B36B04C1; Wed, 27 Nov 2019 11:26:13 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0216.hostedemail.com [216.40.44.216]) by kanga.kvack.org (Postfix) with ESMTP id 42BAF6B04BF for ; Wed, 27 Nov 2019 11:26:13 -0500 (EST) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 024DF5008 for ; Wed, 27 Nov 2019 16:26:13 +0000 (UTC) X-FDA: 76202584626.11.crush12_8d89fbaae1425 X-HE-Tag: crush12_8d89fbaae1425 X-Filterd-Recvd-Size: 1515 Received: from gentwo.org (gentwo.org [3.19.106.255]) by imf29.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Nov 2019 16:26:12 +0000 (UTC) Received: by gentwo.org (Postfix, from userid 1002) id DCF9B3EF16; Wed, 27 Nov 2019 16:26:11 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by gentwo.org (Postfix) with ESMTP id DC2BB3EC1C; Wed, 27 Nov 2019 16:26:11 +0000 (UTC) Date: Wed, 27 Nov 2019 16:26:11 +0000 (UTC) From: Christopher Lameter X-X-Sender: cl@www.lameter.com To: Michal Hocko cc: LKML , linux-mm@kvack.org Subject: Re: SLUB: purpose of sysfs events on cache creation/removal In-Reply-To: <20191127162400.GT20912@dhcp22.suse.cz> Message-ID: References: <20191126121901.GE20912@dhcp22.suse.cz> <20191126165420.GL20912@dhcp22.suse.cz> <20191127162400.GT20912@dhcp22.suse.cz> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII 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 Wed, 27 Nov 2019, Michal Hocko wrote: > Would you mind a patch that would add a kernel command line parameter > that would work like memcg_sysfs_enabled? The default for the config > would be on. Or it would be preferrable to simply drop only events? Just drop the events may be best. Then we know if someone is using it.