From nobody Fri Dec 19 12:15:24 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 7CB472773F3 for ; Fri, 10 Oct 2025 08:34:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085294; cv=none; b=Thvp0U2vtfsLZZiBRktz8wEZLw1MlXfb3z3mbZPGNJGUoGPjrgwFLPu3kR3pjOsHKCY84JSsWr06cSe63ClgLFcSBpRU1bXrEq3sWxtVYxRcWmyT+SK9YUR3Y0DPIe4f7qRk0jX4A8WbEm7gsNL0XsJcv4vRM4j53nyIfA4k3SM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085294; c=relaxed/simple; bh=JUyAprN4RK+PNE7+uyOPEMkyc7B/aIwWA1SfQi/iwCM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZhaN2cSxy01l7zptSwpUf0qeNgHYs8GhO09+hJFbUFpM99I77imkFenXC8cztDsFdJ0qQuecPKxKtPuBIPcxrdGHZMPR8W1OQdLfMvJ6kNwJ+i26/h8LpE+AskuicpDwVs0OrwvgWx36YKIzrNIkl4X8qEPEYMGsytqxbCfYgJg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=UVD1Ddxp; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UVD1Ddxp" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085291; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nn+DENTjXH3CTbperAPV+HFXnO5s8m2BWZ5q37SQP+8=; b=UVD1DdxphS8LTPpjam4KzEU3rI8VGeSkjh3A1U4UKkPTQEE/XoJSYCaK5ys4whm85xIWmh YSe/ZfcnDjRFZ6RzqoyBkYAqKReh0nCfsAAwirDwFfqFhzF4n2xrvSqjPNRSGQSnI6LIm9 67TiUAjI0TPvU6T8Tnt70TcaGdA87pY= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-685-ZP_35s5xNguIhJr5YyTt-w-1; Fri, 10 Oct 2025 04:34:48 -0400 X-MC-Unique: ZP_35s5xNguIhJr5YyTt-w-1 X-Mimecast-MFC-AGG-ID: ZP_35s5xNguIhJr5YyTt-w_1760085287 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 05DB619560AF; Fri, 10 Oct 2025 08:34:47 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.44.32.197]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 2D01419560BB; Fri, 10 Oct 2025 08:34:41 +0000 (UTC) From: Tomas Glozar To: Steven Rostedt , Masami Hiramatsu , Jonathan Corbet Cc: linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Mathieu Desnoyers , John Kacur , Luis Goncalves , Costa Shulyupin , Crystal Wood , Attila Fazekas , Tomas Glozar Subject: [PATCH 7/9] Documentation/rtla: Mention default cgroup state Date: Fri, 10 Oct 2025 10:33:36 +0200 Message-ID: <20251010083338.478961-8-tglozar@redhat.com> In-Reply-To: <20251010083338.478961-1-tglozar@redhat.com> References: <20251010083338.478961-1-tglozar@redhat.com> 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-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Content-Type: text/plain; charset="utf-8" The RTLA option -C/--cgroup is used to set a cgroup for workload threads. This is either a specific cgroup, if passed an argument, or rtla's cgroup, if no argument is given. Expand the documentation of the -C option to also include the information about the cgroup settings when the option is not specified. Signed-off-by: Tomas Glozar --- Documentation/tools/rtla/common_options.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/tools/rtla/common_options.txt b/Documentation/to= ols/rtla/common_options.txt index b842f065c8f6..26e94d291a70 100644 --- a/Documentation/tools/rtla/common_options.txt +++ b/Documentation/tools/rtla/common_options.txt @@ -48,6 +48,8 @@ =20 Set a *cgroup* to the tracer's threads. If the **-C** option is pa= ssed without arguments, the tracer's thread will inherit **rtla**'s *cgroup= *. Otherwise, the threads will be placed on the *cgroup* passed to the opti= on. =20 + If not set, the behavior differs between workload types. User work= loads created by rtla will inherit rtla's cgroup. Kernel workloads are assi= gned the root cgroup. + **--warm-up** *s* =20 After starting the workload, let it run for *s* seconds before sta= rting collecting the data, allowing the system to warm-up. Statistical data= generated during warm-up is discarded. --=20 2.51.0