From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA58F2475E3; Tue, 20 May 2025 14:08:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747750114; cv=none; b=PiV7dTc6qPeuuYTWGG6QiUoQm3SqnvQJGWlq4E8MJSoXoqpUD+LjyONHkR9u+DLx/VbPMFEpByfjuVIJ4KA9rVxiGtfOOpscHEfdAd/Cadlt03ySuCsFvRiGxlllwJ9Ypi1Z5zgIfjxefpuK1xC/6eVhE9DntLbtkiNn5fSWec8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747750114; c=relaxed/simple; bh=+VIZI0thf+/H5abY0c5Mvtc6jv5kMqAoJ4uZft755Eo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=GGPvMxCkaoGe5tYhzqyIQFj+pYSo3VUACdmOumREpGzkQGWbPJnYjHexguejTdCMAcR+ZcjEk2fb6Labi2GIgVDCfRI/YbKLl2KAkgNW1/cFYTYl97joAuOR1AdJrs4LquYU3M3NO5owf9j0YeUFuGy98v5+d+Rnx+RH55esONQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OlXkWcXM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OlXkWcXM" Received: by smtp.kernel.org (Postfix) with ESMTPS id A97B8C4CEEA; Tue, 20 May 2025 14:08:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747750113; bh=+VIZI0thf+/H5abY0c5Mvtc6jv5kMqAoJ4uZft755Eo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=OlXkWcXMskGq4RZJqDGaZBNai+ftFCMooxjzQOkWmwiNpNW1Odniq+/fGoT7vq8Lz 5fXY4CtT5phi32yZ3xZG6M7ncfv+CUxHV6fi4iLphDkfmjdzvy/PhUHvClGE8XwX+d U/eWQ7m5z9T4dF1q2RCgS4L+Vp/d7qsv7utx+DaoqV51K/ANqrBi6C19UubAPY71K+ 3kIm7jPrniZX1bVFhEj3oPqHiSQJs5d1Lf6SS6FF/fqmxElHG7qjvNScjF3WRDg4ik 69M5eFMUQtXM80+GympQicDDPcEZJtFWNe8cIqD04/pPu1qIWWVSf8QepuZRWNOvTV s0aHBfIlORhcA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B310C3DA6D; Tue, 20 May 2025 14:08:33 +0000 (UTC) From: Shashank Balaji via B4 Relay Date: Tue, 20 May 2025 23:07:45 +0900 Subject: [PATCH v2 1/3] cgroup, docs: be specific about bandwidth control of rt processes Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250520-rt-and-cpu-controller-doc-v2-1-70a2b6a1b703@sony.com> References: <20250520-rt-and-cpu-controller-doc-v2-0-70a2b6a1b703@sony.com> In-Reply-To: <20250520-rt-and-cpu-controller-doc-v2-0-70a2b6a1b703@sony.com> To: Tejun Heo , Johannes Weiner , =?utf-8?q?Michal_Koutn=C3=BD?= , Jonathan Corbet Cc: cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Shinya Takumi , Shashank Balaji X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1072; i=shashank.mahadasyam@sony.com; h=from:subject:message-id; bh=0fu39uClw6bO5Fx9qm8IAuu7HAJELLYW1+XN2jpeVRc=; b=owGbwMvMwCV2mPH4Ij++H1mMp9WSGDJ0eu4ryTSGmj/9K5m283rhgp2TvHbPr+kp3S/tf6D7j nncxO08HaUsDGJcDLJiiizvZNZdOGhl2fT1OMM3mDmsTCBDGLg4BWAinN6MDBOnHXDfpefzryzv 5t+ZQYxia9t3/2g32+9gO6vhuX3oyURGhl8vA09LbbSKufD17pmXV5czV30MUbOen2am4vw6rUl rJSMA X-Developer-Key: i=shashank.mahadasyam@sony.com; a=openpgp; fpr=EE1CAED0C13A3982F5C700F6C301C7A24E0EF86A X-Endpoint-Received: by B4 Relay for shashank.mahadasyam@sony.com/default with auth_id=354 X-Original-From: Shashank Balaji Reply-To: shashank.mahadasyam@sony.com From: Shashank Balaji Signed-off-by: Shashank Balaji --- Documentation/admin-guide/cgroup-v2.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index 1a16ce68a4d7f6f8c9070be89c4975dbfa79077e..3b3685736fe9b12e96a273248dfb4a8c62a4b698 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -1076,7 +1076,7 @@ cpufreq governor about the minimum desired frequency which should always be provided by a CPU, as well as the maximum desired frequency, which should not be exceeded by a CPU. -WARNING: cgroup2 cpu controller doesn't yet fully support the control of +WARNING: cgroup2 cpu controller doesn't yet support the (bandwidth) control of realtime processes. For a kernel built with the CONFIG_RT_GROUP_SCHED option enabled for group scheduling of realtime processes, the cpu controller can only be enabled when all RT processes are in the root cgroup. Be aware that system -- 2.43.0