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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC54BC433FE for ; Tue, 11 Oct 2022 16:55:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229866AbiJKQzE (ORCPT ); Tue, 11 Oct 2022 12:55:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229795AbiJKQy6 (ORCPT ); Tue, 11 Oct 2022 12:54:58 -0400 Received: from mail-vk1-xa2a.google.com (mail-vk1-xa2a.google.com [IPv6:2607:f8b0:4864:20::a2a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 078AA17E27; Tue, 11 Oct 2022 09:54:56 -0700 (PDT) Received: by mail-vk1-xa2a.google.com with SMTP id y129so6947570vkg.8; Tue, 11 Oct 2022 09:54:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=uhLTcdB4WsCh/vP1czukbNh0ebYnCkF5kHJbcSwgwSY=; b=nE1SI2L61bOeyDQVfsAVXR9tLiJCDb/MT3KNmCLWWQkxjFida4aJ6DukRVwdaYroZT 0gbAE+YsnR6IwIbVtnSmY/lHzTzrSax9urxIKmXww3pkUy8dTR5hokDuvbd6l+tRs1jT +g+yJF4uf4R6eY18ovAWUsBn1y9hfs/ZMATeGtKyx49KvWtWLZqzw5qOoj4ZlDvsHsaF LjAySYor7garmiQZCqwTsgSwo4b+LDN3CRp+QtvgNQVS5hqUATWjQK6kxyfwqDO4CdB/ 6N/wYOtz74zl8MXdXzWnaD2dO1u5xqHoBkKYg5D8tOeGt/U64xmwokYx7EYVErHG92wK Vz/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=uhLTcdB4WsCh/vP1czukbNh0ebYnCkF5kHJbcSwgwSY=; b=wozLb11zDu5FpcgSlV/skCf+Cz1f5E/eNCqz1IO1FEgLhvUeLjlKY0r5WSP2v+9XKj R3QDIi8nfII4p6MM1JCQrfb1gdPQ0bSDYV4ExCz9f7D/STDA11ZZA9W6qz32VPEY1Hxf RJKFDc9ZFf7ZRKGrdwfKVg2wEnq0nIwR4Ut6DkBaYio5WksPsWYILOLEanTfyaM+41u9 IvmNdvvU5ucrPTYklRhFqGWEmO9wr4ClGgmSku/OF7/JoVjF+hotcP1LOstGeR+ZzJdA A3W8Iy9QeIZ7pbgrw5zmwudTPnOwDmtToHoIXx+PQW+WTs1UYZ74x401JPDaBOBoPs9Y buAA== X-Gm-Message-State: ACrzQf0zFllrR2e0XTUjP0tcvyZH67sJmXlD6zpdgsi/TuEdyiOgY1GZ sMv4Oj2b4/Z4F/+0u8KIlzrSScY1z0iQCA== X-Google-Smtp-Source: AMsMyM6WD85RJrsWfWyb+GrHuCVmpzmrwbTaogLDboReDgPG9AtJdj/NiwKS8A23mRVKfztmS82bOg== X-Received: by 2002:a17:902:e885:b0:183:dcb7:c4f8 with SMTP id w5-20020a170902e88500b00183dcb7c4f8mr3026070plg.160.1665507284779; Tue, 11 Oct 2022 09:54:44 -0700 (PDT) Received: from localhost (2603-800c-1a02-1bae-a7fa-157f-969a-4cde.res6.spectrum.com. [2603:800c:1a02:1bae:a7fa:157f:969a:4cde]) by smtp.gmail.com with ESMTPSA id q14-20020a170902dace00b0017f7b6e970esm8941708plx.146.2022.10.11.09.54.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Oct 2022 09:54:44 -0700 (PDT) Sender: Tejun Heo Date: Tue, 11 Oct 2022 06:54:43 -1000 From: Tejun Heo To: Yu Kuai Cc: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, yukuai3@huawei.com, yi.zhang@huawei.com Subject: Re: [PATCH -next 1/5] blk-iocost: disable writeback throttling Message-ID: References: <20221011083547.1831389-1-yukuai1@huaweicloud.com> <20221011083547.1831389-2-yukuai1@huaweicloud.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221011083547.1831389-2-yukuai1@huaweicloud.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 11, 2022 at 04:35:43PM +0800, Yu Kuai wrote: > From: Yu Kuai > > Commit b5dc5d4d1f4f ("block,bfq: Disable writeback throttling") disable > wbt for bfq, because different write-throttling heuristics should not > work together. > > For the same reason, wbt and iocost should not work together as well, > unless admin really want to do that, dispite that performance is > affected. > > Signed-off-by: Yu Kuai Acked-by: Tejun Heo Thanks. -- tejun