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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 CF26AC4338F for ; Sat, 14 Aug 2021 02:35:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B16A6610CF for ; Sat, 14 Aug 2021 02:35:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236590AbhHNCf2 (ORCPT ); Fri, 13 Aug 2021 22:35:28 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:13316 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236656AbhHNCfW (ORCPT ); Fri, 13 Aug 2021 22:35:22 -0400 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.53]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4GmkzF5Zq2z85k1; Sat, 14 Aug 2021 10:34:49 +0800 (CST) Received: from dggema762-chm.china.huawei.com (10.1.198.204) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2176.2; Sat, 14 Aug 2021 10:34:52 +0800 Received: from [10.174.176.73] (10.174.176.73) by dggema762-chm.china.huawei.com (10.1.198.204) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Sat, 14 Aug 2021 10:34:52 +0800 Subject: Re: [PATCH v2 0/4] optimize the bfq queue idle judgment To: , CC: , , References: <20210806020826.1407257-1-yukuai3@huawei.com> From: "yukuai (C)" Message-ID: <0b83e2e1-9cce-6ffc-90ca-4f03ad518b82@huawei.com> Date: Sat, 14 Aug 2021 10:34:51 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20210806020826.1407257-1-yukuai3@huawei.com> Content-Type: text/plain; charset="gbk"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.176.73] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggema762-chm.china.huawei.com (10.1.198.204) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 2021/08/06 10:08, Yu Kuai wrote: > Chagnes in V2: > - as suggested by Paolo, add support to track if root_group have any > pending requests, and use that to handle the situation when only one > group is activated while root group doesn't have any pending requests. > - modify commit message in patch 2 > > Yu Kuai (4): > block, bfq: add support to track if root_group have any pending > requests > block, bfq: do not idle if only one cgroup is activated > block, bfq: add support to record request size information > block, bfq: consider request size in bfq_asymmetric_scenario() > > block/bfq-iosched.c | 69 ++++++++++++++++++++++++++++++++++++++------- > block/bfq-iosched.h | 29 +++++++++++++++++-- > block/bfq-wf2q.c | 37 +++++++++++++++--------- > 3 files changed, 110 insertions(+), 25 deletions(-) > ping ...