From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751736AbdJRPpY (ORCPT ); Wed, 18 Oct 2017 11:45:24 -0400 Received: from mx2.suse.de ([195.135.220.15]:51046 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751628AbdJRPpX (ORCPT ); Wed, 18 Oct 2017 11:45:23 -0400 Date: Wed, 18 Oct 2017 08:44:36 -0700 From: Davidlohr Bueso To: Jason Baron Cc: Waiman Long , akpm@linux-foundation.org, Alexander Viro , Jan Kara , Jeff Layton , "J. Bruce Fields" , Tejun Heo , Christoph Lameter , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Ingo Molnar , Peter Zijlstra , Andi Kleen , Dave Chinner , Boqun Feng Subject: Re: [PATCH v7 7/6] fs/epoll: scale nested callbacks Message-ID: <20171018154436.kyy6nbfn2qfm6dzq@linux-n805> References: <1507229008-20569-1-git-send-email-longman@redhat.com> <20171013154543.GI5131@linux-80c1.suse> <5c15251d-0034-dc2a-5019-3e8f0d60c194@akamai.com> <20171017155318.5rcoprfwxs27k2qq@linux-n805> <77a2bec3-f663-40de-9ad8-949bf3230a76@akamai.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <77a2bec3-f663-40de-9ad8-949bf3230a76@akamai.com> User-Agent: NeoMutt/20170421 (1.8.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 18 Oct 2017, Jason Baron wrote: >If there are not many EPOLL_CTL_ADDs, then I wouldn't think loop_ncalls >would be highly contented (since it should only be called from the add >path)? So yeah it's all about the readywalks. Thanks, Davidlohr