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=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no 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 D07EDC3A5A1 for ; Thu, 22 Aug 2019 15:21:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B2092089E for ; Thu, 22 Aug 2019 15:21:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="zWam6Whh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389146AbfHVPVB (ORCPT ); Thu, 22 Aug 2019 11:21:01 -0400 Received: from mail-wm1-f52.google.com ([209.85.128.52]:50479 "EHLO mail-wm1-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389038AbfHVPVB (ORCPT ); Thu, 22 Aug 2019 11:21:01 -0400 Received: by mail-wm1-f52.google.com with SMTP id v15so6050050wml.0 for ; Thu, 22 Aug 2019 08:21:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=J3YgGpXbrKQChiIbL9RIJ74I0ACDqCIQRcWEjtb7+qc=; b=zWam6WhhG3qEy/a1cJrD/hvQngGX/9zZNrlhYJ9WhqYxuhfSWPmNbQ5q5EzBtGGcFY QN9n4XFbexIC+RoTAtlz9tGs8cl1lz4tWViai/IfWdMQPEVRbBpQkt9Hnl6UefSBPodG eOqWZtVLUVjKMUYh4F4yolQinHvxoJuqXeO7ls065cvFf+lwHEEcl/uwQFXpdKa6uobo nqrgsYLvmC7+2ny7zNxO2Gs5RavMze6Qs0+gGymhyI+5fOtKXj3RmAoeswbBhq0KnLiw OMAIGyEXxv3GfVtOYjclGCPhDwKQlNDrop9mvrK853MEr022rRGOVJ05Kew6fTwWx91Y GmOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=J3YgGpXbrKQChiIbL9RIJ74I0ACDqCIQRcWEjtb7+qc=; b=Zj/inPi2sfKsIpDIxre3jL90Nw5ThscKbg6qPbeuo78ELfJY9T09K24SD3Afiwiwb/ F2kzU+WSiz0+DBx+A8Ery6V3oLaxCDwcWJMYYQDATu56IpIru1p72zRl1tuwpwXflUfi S5HkQ++WA8pHs/4DwLuoREUzOD7kiu1lRj2T6LAbKx+BsTWgdMtl07YjZVy7cgtuktcO Y6nRbmsyEuKvvK/RjfyO9HFxR8fySVgJvRVpOxvUAmiLoXZ45gyDDdZWrpbYC5CiGqsu uEV3liMb5W6nx5cKejHWE8DDPrDeW1te6eNXZ1nnm4F56w+2ZrU2LWL2cM4cSp48c22w eUXw== X-Gm-Message-State: APjAAAVGWXXUwKcWxNaE8M2eYEY8f+WRh2sobB5H+M4hba1jNcDglEs9 QLiQAlgkAEd5DQfDjoUhgBH/cQ== X-Google-Smtp-Source: APXvYqwLVRiZycBwPEqUp0/01LDS0CVDmgJEvFbmSIMFi1mw9mOJLZJbESTF2oRVAQJJXeGiW4OwYA== X-Received: by 2002:a1c:18d:: with SMTP id 135mr7066479wmb.171.1566487259187; Thu, 22 Aug 2019 08:20:59 -0700 (PDT) Received: from localhost.localdomain (146-241-115-105.dyn.eolo.it. [146.241.115.105]) by smtp.gmail.com with ESMTPSA id a19sm79833974wra.2.2019.08.22.08.20.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 22 Aug 2019 08:20:58 -0700 (PDT) From: Paolo Valente To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, ulf.hansson@linaro.org, linus.walleij@linaro.org, bfq-iosched@googlegroups.com, oleksandr@natalenko.name, Paolo Valente Subject: [PATCH 0/4] block, bfq: series of improvements and small fixes of the injection mechanism Date: Thu, 22 Aug 2019 17:20:33 +0200 Message-Id: <20190822152037.15413-1-paolo.valente@linaro.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi Jens, this patch series makes the injection mechanism better at preserving control on I/O. Thanks, Paolo Paolo Valente (4): block, bfq: update inject limit only after injection occurred block, bfq: reduce upper bound for inject limit to max_rq_in_driver+1 block, bfq: increase update frequency of inject limit block, bfq: push up injection only after setting service time block/bfq-iosched.c | 35 ++++++++++++++++++++++++++--------- 1 file changed, 26 insertions(+), 9 deletions(-) -- 2.20.1