Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp186596imu; Wed, 7 Nov 2018 23:45:31 -0800 (PST) X-Google-Smtp-Source: AJdET5f2a/BexpVULoPJPZJ0Pq27rCZ61YorfX34cvKPbxrIxNgWhVdT/TqwwNzWNQPDWH5dHGp1 X-Received: by 2002:a17:902:a9cb:: with SMTP id b11-v6mr3478181plr.219.1541663131236; Wed, 07 Nov 2018 23:45:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1541663131; cv=none; d=google.com; s=arc-20160816; b=xc6NwHSnpv2/CWgFfQf5fARY/KmGOwItqefJxu1cQ55FkNrHUN4kV/Cgm0ewOpG+OI 2oxsCP6UOA5uAsCvwKfLn8cXDclRJBY2lG7H+6wuGR1dlVqRoWfJCloNeyRvAC86xndN BsBHxICQPVjQODQs8s1WB/3mMNiJEChYesgnNXWv2EefJwALrs7bv2Den8nKRQNQDdQx XxsnuFJ/Rmkrvg/JZyG4ng08DdAcJoW9UPM9JsB08vLXllGinW6T8MAEshgO2A+07uj5 zeyDGtOQFAiyMJMaRlA762rnEeOSq6Wyg7OGN1TDL14EH6hcXQ3zRpZ0Yt1kE1/NKz8o aw9Q== 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=9UVgYNIGC4L/3sWUAHmCfoA1ER/sH1aWLk7AqooeSN4=; b=oNGcS3HZ4xHwNWIVwAzRYg1b+lUHZ8YuGXvrqSyGB61EzgZh6Ri/ORZejx859YC9hC V+bcYEDZAT9A9qfAnnzbOxsyJcSz79NpfIw62Ai/GVS+3C4NYTMgQtBInvkWoK2bAHp5 YXq832KQF5aOglVyDLWPqB123rc+MfJFkrWEg8uFWquKT5zJq4ji6aeqhwb4wrPb8Ip4 EDZW5V8urZ70Nz+Yw7z1rbtwJfui7/xDLUsE0gN7H6ZZ6kyhwuwx8ExDcCqakHifPAKv iB/rV2s0oTwPGX0yBQm/Rwj1cRx52/lf8OurYFz9lfC7ZvOm4zVIZqqi6p6NIwrh4kl9 Prdg== 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 i11si3074467pgh.406.2018.11.07.23.45.15; Wed, 07 Nov 2018 23:45:31 -0800 (PST) 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 S1726895AbeKHRTF (ORCPT + 99 others); Thu, 8 Nov 2018 12:19:05 -0500 Received: from mx2.suse.de ([195.135.220.15]:59442 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726162AbeKHRTE (ORCPT ); Thu, 8 Nov 2018 12:19:04 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id EE04CAD4E; Thu, 8 Nov 2018 07:44:50 +0000 (UTC) Date: Wed, 7 Nov 2018 23:44:42 -0800 From: Davidlohr Bueso To: Dave Chinner Cc: Miklos Szeredi , Andrew Morton , Daniel Colascione , longman@redhat.com, linux-fsdevel@vger.kernel.org, linux-kernel , Davidlohr Bueso Subject: Re: [PATCH] fs/proc: introduce /proc/stat2 file Message-ID: <20181108074442.kkuyaxwjhgzhzyjv@linux-r8p5> References: <20181029192521.23059-1-dave@stgolabs.net> <20181106154840.3b448356214afa63dc8cb28c@linux-foundation.org> <20181108020750.GZ6311@dastard> <20181108072402.smocqnczc2tjmjwz@linux-r8p5> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20181108072402.smocqnczc2tjmjwz@linux-r8p5> User-Agent: NeoMutt/20180323 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 07 Nov 2018, Davidlohr Bueso wrote: >I have not looked at how filesystems tune the batch size, but it would certainly be worth >looking into methinks. nm this part, percpu_counter_batch is not tunable. It would still probably be acceptable (famous last words) to at least move the bottleneck in question to percpu_counter api. Thanks, Davidlohr