From nobody Wed Feb 11 05:28:57 2026 Received: from sender-of-o51.zoho.eu (sender-of-o51.zoho.eu [136.143.169.51]) (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 1CAB9147C6C for ; Wed, 3 Apr 2024 13:28:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.169.51 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712150939; cv=pass; b=EUcrrlJSuIs/jUYnf7D7D1ieMFVZLOmtJoti2L2ACssqoV8y4AwZLnRTI8i5e5trbiTfR0Yemqo9KtxGxbw2F3Fd6NR6GB/rCfwu10/woo6XdrkikP6k2R7OYZeM82rZEa7QYaY5XhSR4G7CowRzF/HOScbwuT+Kugu2nytawVs= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712150939; c=relaxed/simple; bh=ep/aM4UQ3Rc0khxGhp+4Y6RB4Pmta9qCzL1Sw7BBg58=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=oQgiKs18xQdzcvRQrMIJHSMG8HN7+U/M0bvwy0i1EJ5fkZzMZPoE4X6fFNNG8NKxZ06ooTVLpVTVz14X1ZM6+BUSW6aUGimT5ZN4+JYicLvAd/L6XH7hl1APuor9MMOxCmBXQ9+9emB6khJd5zekOMlsVdMUpcVnlmfnBm0LtSE= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bursov.com; spf=pass smtp.mailfrom=bursov.com; dkim=pass (1024-bit key) header.d=bursov.com header.i=vitaly@bursov.com header.b=pVzb4WxW; arc=pass smtp.client-ip=136.143.169.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bursov.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bursov.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=bursov.com header.i=vitaly@bursov.com header.b="pVzb4WxW" ARC-Seal: i=1; a=rsa-sha256; t=1712150904; cv=none; d=zohomail.eu; s=zohoarc; b=YCKW4ozBe+xoPJkaMBl33Oj47iCQ+t/fIVOyJwgc0uM8krcOSGvl1Ecq/rjopIivL+CAmkEt4NYFavrRJ2MIbzX2Y5WTez58srTlsv8g+MtgfYHyAtIzQ7P+HgKgqNuwCPRH3Quclj6hhyCf2kJNkgnEfbTlgjh1pEKlCK2m4zw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1712150904; h=Content-Transfer-Encoding:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To:Cc; bh=9bXuIj+PDKqj9scGTWjOC6w1rao7BU1VlWs7XoTLDO4=; b=SCw5CPb1LGYOBadJ+eXpoftbvwjHOZO+5ZyfrlloX3sgc7f+54vAlFDHtiMMVCE3NYLcJiGTTJfrHj96hR+FPCSiD43iM9kZWFz3ZyK1SMRzWyUSTgujmhcksM9pSAYVH3bOlgezCsInbBpvnw7H7G3UxIIynoJFG9egkW3/wZE= ARC-Authentication-Results: i=1; mx.zohomail.eu; dkim=pass header.i=bursov.com; spf=pass smtp.mailfrom=vitaly@bursov.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1712150904; s=zoho; d=bursov.com; i=vitaly@bursov.com; h=From:From:To:To:Subject:Subject:Date:Date:Message-Id:Message-Id:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Reply-To:Cc; bh=9bXuIj+PDKqj9scGTWjOC6w1rao7BU1VlWs7XoTLDO4=; b=pVzb4WxWijJ9GMxajmDOadze1n5ulI/o2i4dJEj8yskoVWS0+vES3rDa//L6Qk+3 wWqpmF8VJ/X3/8//zI5rnSn1nllD/WSLQSMWB3J5zDGNMCtwrkXyWmM8vDhlKpCmbvj BsguMiQAr3cfhcSVTCqqjFHamEwLTO4chxSSE6/0= Received: from localhost.localdomain (217.20.170.230 [217.20.170.230]) by mx.zoho.eu with SMTPS id 1712150903173220.99083567666742; Wed, 3 Apr 2024 15:28:23 +0200 (CEST) From: Vitalii Bursov To: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , linux-kernel@vger.kernel.org, Vitalii Bursov Subject: [PATCH v3 3/3] docs: cgroup-v1: clarify that domain levels are system-specific Date: Wed, 3 Apr 2024 16:28:06 +0300 Message-Id: <03b7979666088f8d55db301c6649e0c75c727d6e.1712147341.git.vitaly@bursov.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" Add a clarification that domain levels are system-specific and where to check for system details. Signed-off-by: Vitalii Bursov Acked-by: Vincent Guittot Reviewed-by: Valentin Schneider --- Documentation/admin-guide/cgroup-v1/cpusets.rst | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/admin-guide/cgroup-v1/cpusets.rst b/Documentatio= n/admin-guide/cgroup-v1/cpusets.rst index 7d3415eea05d..f401af5e2f09 100644 --- a/Documentation/admin-guide/cgroup-v1/cpusets.rst +++ b/Documentation/admin-guide/cgroup-v1/cpusets.rst @@ -568,7 +568,7 @@ on the next tick. For some applications in special sit= uation, waiting =20 The 'cpuset.sched_relax_domain_level' file allows you to request changing this searching range as you like. This file takes int value which -indicates size of searching range in levels ideally as follows, +indicates size of searching range in levels approximately as follows, otherwise initial value -1 that indicates the cpuset has no request. =20 =3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D @@ -581,6 +581,11 @@ otherwise initial value -1 that indicates the cpuset h= as no request. 5 search system wide [on NUMA system] =3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 +Not all levels can be present and values can change depending on the +system architecture and kernel configuration. Check +/sys/kernel/debug/sched/domains/cpu*/domain*/ for system-specific +details. + The system default is architecture dependent. The system default can be changed using the relax_domain_level=3D boot parameter. =20 --=20 2.20.1