From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752425AbdLGTng (ORCPT ); Thu, 7 Dec 2017 14:43:36 -0500 Received: from mx1.redhat.com ([209.132.183.28]:57806 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750967AbdLGTnf (ORCPT ); Thu, 7 Dec 2017 14:43:35 -0500 Date: Thu, 7 Dec 2017 14:43:34 -0500 From: Vivek Goyal To: Shaohua Li Cc: Khazhismel Kumykov , axobe@kernel.dk, shli@fb.com, tj@kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [RFC PATCH] blk-throttle: add burst allowance. Message-ID: <20171207194333.GB4067@redhat.com> References: <20171114231022.42961-1-khazhy@google.com> <20171116165033.4noofd6gkaj6x3yl@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171116165033.4noofd6gkaj6x3yl@kernel.org> User-Agent: Mutt/1.9.1 (2017-09-22) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Thu, 07 Dec 2017 19:43:35 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 16, 2017 at 08:50:33AM -0800, Shaohua Li wrote: [..] > Can you describe why we need this? It would be great if you can describe the > usage model and an example. Does this work for io.low/io.max or both? Hi Shaohua, Is there any documentation for "io.low" somewhere now. Should we update cgroup-v2.txt? Just reading through BLK_DEV_THROTTLING_LOW description does not give me enough idea to know what it is. Thanks Vivek