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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 3AE12C433DB for ; Fri, 22 Jan 2021 18:31:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 029E2233FA for ; Fri, 22 Jan 2021 18:31:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729114AbhAVSbG (ORCPT ); Fri, 22 Jan 2021 13:31:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729073AbhAVSZG (ORCPT ); Fri, 22 Jan 2021 13:25:06 -0500 Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 953DCC0613D6 for ; Fri, 22 Jan 2021 10:22:12 -0800 (PST) Received: by mail-ej1-x630.google.com with SMTP id g3so8997951ejb.6 for ; Fri, 22 Jan 2021 10:22:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=HMx5WULUEpo/GvYQe+DCnONeXIBdpeEzpvbY3sfaTEo=; b=DwcEicKGOYG979Ms2/RsOcxdbOz+6kqfBTvMCmL8ufwGuQ/rK5qyX7QuTJCk4wvbsO i9J//LKcBcsVEQ8c93Ni1iHpIwhrM20bEd+ISp8s36j4xB0AuBDW9L9frbr0XNiLwdun t/6c1S0CH+y4E6nlDlHafdV440DEKfHG48iCc3jvdEY51H1tpHbCVbj7bDtPYe+uv1Yh taOgih7Ix7utI2mosWqZIBhJTP3d8fujK/K6gDHBbIJiIkAA2IOT1xe2/3gW2npwkdrh GSeuU329T4e7WAYw0VgZwKfAVBzPxhTBitw+Tdk0hLrWj1+7rJF3VRw18XGyhiuv8+Cv dN+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=HMx5WULUEpo/GvYQe+DCnONeXIBdpeEzpvbY3sfaTEo=; b=Ze9SXNi7oNQhMlkRLULdYS0d59qAsZNvVA991Y101UHnCg2v65KSSV9yLyKitk5SUc Xnvh2eJuKr70iEpbVng3eiPFfzArHhNqTBu8WgL0iqO7cHhdsfq7yEg3Mqq8TyKzLojC qQZWtGSW0qGb4nSpOpSHyG8Kv1B3KTNkty6WcGm2yeMlwtgMz+amJ+i0Wyh0SotsmDQL PVZjLoNrSkzAHs/YnbChIvUVbAQE5WL4MefJnG3imKd8UkIC84WI9Ray2mhRxJzFf+1K s6TPv9Cb+Tdy17ycc/rcOv1DVsM6A8kaOJ/HOZfznlz2R23/+iYFu+TI/ktLSOlzavDc LygA== X-Gm-Message-State: AOAM5321aW5eip1tcC7bN0uQgZkI/fuzkL3deQDf1OMT4JEyQ7RoQSeH fd713HbikgV1DIYThnS6cJxlaw== X-Google-Smtp-Source: ABdhPJympufxTHr/CGIxRKqJYH6dIPcW3Ml2RciAkM8LEv9zc6ESKWuYW7wxKbZwNgkP1pWqgIEfDg== X-Received: by 2002:a17:906:af41:: with SMTP id ly1mr110739ejb.491.1611339731290; Fri, 22 Jan 2021 10:22:11 -0800 (PST) Received: from [192.168.0.13] ([83.216.184.132]) by smtp.gmail.com with ESMTPSA id w18sm4942368ejq.59.2021.01.22.10.22.09 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 22 Jan 2021 10:22:10 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Subject: Re: [PATCH BUGFIX/IMPROVEMENT 0/6] block, bfq: first bath of fixes and improvements From: Paolo Valente In-Reply-To: <20210122181948.35660-1-paolo.valente@linaro.org> Date: Fri, 22 Jan 2021 19:22:08 +0100 Cc: linux-block , linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Message-Id: <721F90B0-837A-4EBE-90CA-35C88C2A57D3@linaro.org> References: <20210122181948.35660-1-paolo.valente@linaro.org> To: Jens Axboe X-Mailer: Apple Mail (2.3445.104.11) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Il giorno 22 gen 2021, alle ore 19:19, Paolo Valente = ha scritto: >=20 > Hi, >=20 > about nine months ago, Jan (Kara, SUSE) reported a throughput > regression with BFQ. That was the beginning of a fruitful dev&testing > collaboration, which led to 18 new commits. Part are fixes, part are > actual performance improvements. >=20 The cover letter was not complete, sorry. Here is the missing piece: Given the high number of commits, and the size of a few of them, I've opted for splitting their submission into three batches. This is the first batch. Thanks, Paolo > Jia Cheng Hu (1): > block, bfq: set next_rq to waker_bfqq->next_rq in waker injection >=20 > Paolo Valente (5): > block, bfq: use half slice_idle as a threshold to check short ttime > block, bfq: increase time window for waker detection > block, bfq: do not raise non-default weights > block, bfq: avoid spurious switches to soft_rt of interactive queues > block, bfq: do not expire a queue when it is the only busy one >=20 > block/bfq-iosched.c | 100 +++++++++++++++++++++++++++++++------------- > 1 file changed, 70 insertions(+), 30 deletions(-) >=20 > -- > 2.20.1