From nobody Sun Feb 8 12:51:34 2026 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 A8DB2EB64D9 for ; Mon, 19 Jun 2023 11:06:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232616AbjFSLGR (ORCPT ); Mon, 19 Jun 2023 07:06:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232661AbjFSLFn (ORCPT ); Mon, 19 Jun 2023 07:05:43 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38AA41BC0; Mon, 19 Jun 2023 04:04:54 -0700 (PDT) Date: Mon, 19 Jun 2023 11:04:52 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1687172692; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VjEioIM+Zyvtme47DXVE1NS8L2pAnlF2IpyaCJ+fnlE=; b=OLRQaklI5B3yZ7n9dEL3VNvnmKhqbA5elFdCm6+XpBvb5f7afDVcEOqggxfy3KGz5eXXGm BCbT0JSawDcvET8IrKMxhzISboHtv2fO+l7jUmu6GVrLGeTnWNlYrIEZr6TenDoCbeqoEp /TVvS3QqEwDD+gAsMNl+XsSIsK0k4Ah8oTOJ4vMkvtdLGpGOGEwhd6vxAn08capdVafxcq 2G2KTiyFMUbIMhUqaTI3JbubrJ7pZphXE9KBtO0HkGzPv4/Ng4uQ9uWLUd4/sKwPoVGXVI XLsmw1Hy/NONKIrSzw5zwGauwZyKbxp9m/VHuDndT8Eu8UFnlVs7BRKpIPPMSA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1687172692; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VjEioIM+Zyvtme47DXVE1NS8L2pAnlF2IpyaCJ+fnlE=; b=VG165vYuTSAmCt3nIJL4NUJXqU6i9p01Cn1jHjf70poLpec2LbHZ50YNu+NOIBgnsjITE4 OBPwFJ+IzsX/KmCg== From: "tip-bot2 for Vineeth Pillai" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] sched/deadline: Update GRUB description in the documentation Cc: "Vineeth Pillai (Google)" , "Peter Zijlstra (Intel)" , Daniel Bristot de Oliveira , Juri Lelli , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20230530135526.2385378-2-vineeth@bitbyteword.org> References: <20230530135526.2385378-2-vineeth@bitbyteword.org> MIME-Version: 1.0 Message-ID: <168717269226.404.4412261506840976360.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the sched/core branch of tip: Commit-ID: e20f204c88d595c04fc9197794bb68c0fbabd902 Gitweb: https://git.kernel.org/tip/e20f204c88d595c04fc9197794bb68c0f= babd902 Author: Vineeth Pillai AuthorDate: Tue, 30 May 2023 09:55:26 -04:00 Committer: Peter Zijlstra CommitterDate: Fri, 16 Jun 2023 22:08:12 +02:00 sched/deadline: Update GRUB description in the documentation Update the details of GRUB to reflect the updated logic. Signed-off-by: Vineeth Pillai (Google) Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Daniel Bristot de Oliveira Acked-by: Juri Lelli Link: https://lore.kernel.org/r/20230530135526.2385378-2-vineeth@bitbytewor= d.org --- Documentation/scheduler/sched-deadline.rst | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/scheduler/sched-deadline.rst b/Documentation/sch= eduler/sched-deadline.rst index 9d9be52..9fe4846 100644 --- a/Documentation/scheduler/sched-deadline.rst +++ b/Documentation/scheduler/sched-deadline.rst @@ -203,12 +203,15 @@ Deadline Task Scheduling - Total bandwidth (this_bw): this is the sum of all tasks "belonging" to= the runqueue, including the tasks in Inactive state. =20 + - Maximum usable bandwidth (max_bw): This is the maximum bandwidth usabl= e by + deadline tasks and is currently set to the RT capacity. + =20 The algorithm reclaims the bandwidth of the tasks in Inactive state. It does so by decrementing the runtime of the executing task Ti at a pace= equal to =20 - dq =3D -max{ Ui / Umax, (1 - Uinact - Uextra) } dt + dq =3D -(max{ Ui, (Umax - Uinact - Uextra) } / Umax) dt =20 where: