From nobody Fri Dec 19 10:41:46 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 C43E826059D for ; Fri, 10 Oct 2025 08:34:23 +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=1760085265; cv=none; b=DMwdqEtjJdQSip/laoUsg/IpJ9gXci1tlLAOpfSBTuBOSgxhmkc6yBNxL1eqRNlqxEp4gpcYJw5zaeI0x6hmBOQh5bNnx4WAvjCqZklgtse34WxKKjbKPp//MUGmFWIMvcz06Opz6hmmkGbVPn/WQ4UDEDGcJWLWAwLhIVRBwGE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085265; c=relaxed/simple; bh=bHdkT0SRpvckR//u62FZqAiNJWH7odfKGe/eJNBu7ao=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RqUphgHoyTcDP4yT4NLorsYvb9zp0lWSaGV0UuFWM3eSMTr+u/cdhI55hQszHN8BkCvSXshNeOayszfPQgrJwNNujWMCuTLP9nBqAh/EANaikzer8djcKxBWhhnEKJ/zoEDlu3DKX16ynCarlyUez/FqQcLoBJ9Mldk/trYSVyY= 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=fkCoFfEd; 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="fkCoFfEd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085262; 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=RW1e0jQ2GbtaetsTGdGfNR8Fk/nO8dWFHEsXFoHlOlM=; b=fkCoFfEdsdJuyavIJg8/yGemyFrkXWgca9h+yzev6ZmN1WU9NPnLf0iPnETuA5IY10yrKz yuD0Hb0VeVfu/SQ6bIjwAVZCV0TZZ68mkgw3w40xuPY+fJ6aYXgmS6a9/acouiRvLywkY1 BwyEruw3Xl+RqwY6+qgkIZBeDlFoFnY= Received: from mx-prod-mc-02.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-227-WQV_c8CRMyG_KVUkvr2SLg-1; Fri, 10 Oct 2025 04:34:18 -0400 X-MC-Unique: WQV_c8CRMyG_KVUkvr2SLg-1 X-Mimecast-MFC-AGG-ID: WQV_c8CRMyG_KVUkvr2SLg_1760085256 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-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DA68F195608D; Fri, 10 Oct 2025 08:34:15 +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 4BA3219560BB; Fri, 10 Oct 2025 08:34:11 +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 1/9] Documentation/rtla: Fix typo in common_options.txt Date: Fri, 10 Oct 2025 10:33:30 +0200 Message-ID: <20251010083338.478961-2-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" Fix "unlike" being spelled "nlike" in --on-threshold documentation. Fixes: 70165c78e31d ("Documentation/rtla: Add actions feature") Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/tools/rtla/common_options.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/tools/rtla/common_options.txt b/Documentation/to= ols/rtla/common_options.txt index 77ef35d3f831..8ca424ab0faf 100644 --- a/Documentation/tools/rtla/common_options.txt +++ b/Documentation/tools/rtla/common_options.txt @@ -67,7 +67,7 @@ - *trace[,file=3D]* =20 Saves trace output, optionally taking a filename. Alternative to= -t/--trace. - Note that nlike -t/--trace, specifying this multiple times will = result in + Note that unlike -t/--trace, specifying this multiple times will= result in the trace being saved multiple times. =20 - *signal,num=3D,pid=3D* --=20 2.51.0 From nobody Fri Dec 19 10:41:46 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 0ABE326159E for ; Fri, 10 Oct 2025 08:34:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085266; cv=none; b=kPXMk6H0hmW4a7Gxg1K17lE9VWs4iFA936AcvEtxcUM1SB5ZDeESoxuIFwOaCAmjES9QZMxgxVkbIfkBQoIQkwMeYNZXAcQfpmyWL6qTCyq6pnezPdDbJ28r2RkWSe8sWumeO8DVnd192dp9t+mV+yA+0csM7Lv1GFICpjRTDVo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085266; c=relaxed/simple; bh=5dp9gHHafiY47COjYH/uTIdosRY3xR3odqfStfd8B9k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Cex1HWoElEUmO8lvogq83v3vjdujITmMV5a+rHBLk8mRW9en7ShdfP7VH5ylBYOhF+BOcaQO7uVokB88W22yIZVZacFBvdnL2Yte7pgiPMkO4rjoYDY2GRHipvWgiLE5xn9Q6jameGYz21937XIVfn/CqVHK0su75R7CjbMvYWk= 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=VjdL0+Yu; arc=none smtp.client-ip=170.10.133.124 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="VjdL0+Yu" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085264; 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=PSmd414kfxWFanvw2RmfmmnBMl3rOzxPmcQQgrVQe3g=; b=VjdL0+Yura30eaHscLRzPExByvjVqgzRYxosg1OlxfEJFbd94APgrO7naEMCcJOSN9ZfVL +vz3zTMWOWTinNd12nprhusrrf7q+qFYs7/dma8+YBB2el8zS2nA3WGoTgDQbRid7mU9kk NdVznDepJhE7PFNBMlFMhz19s1SPjI0= Received: from mx-prod-mc-05.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-572--wcduIO0P0SCE1Qo0av4QQ-1; Fri, 10 Oct 2025 04:34:22 -0400 X-MC-Unique: -wcduIO0P0SCE1Qo0av4QQ-1 X-Mimecast-MFC-AGG-ID: -wcduIO0P0SCE1Qo0av4QQ_1760085261 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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C4E7619560AE; Fri, 10 Oct 2025 08:34:20 +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 56D5C19560BB; Fri, 10 Oct 2025 08:34:16 +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 2/9] Documentation/rtla: Fix typo in common_timerlat_options.txt Date: Fri, 10 Oct 2025 10:33:31 +0200 Message-ID: <20251010083338.478961-3-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" Fix "awakes" being used in place of "awakened" in --users-threads option documentation. Fixes: 612738321774 ("Documentation: Add tools/rtla timerlat -u option docu= mentation") Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/tools/rtla/common_timerlat_options.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/tools/rtla/common_timerlat_options.txt b/Documen= tation/tools/rtla/common_timerlat_options.txt index 1f5d024b53aa..e7074eb36468 100644 --- a/Documentation/tools/rtla/common_timerlat_options.txt +++ b/Documentation/tools/rtla/common_timerlat_options.txt @@ -56,7 +56,7 @@ **-u**, **--user-threads** =20 Set timerlat to run without a workload, and then dispatches user-s= pace workloads - to wait on the timerlat_fd. Once the workload is awakes, it goes t= o sleep again + to wait on the timerlat_fd. Once the workload is awakened, it goes= to sleep again adding so the measurement for the kernel-to-user and user-to-kerne= l to the tracer output. **--user-threads** will be used unless the user specify **= -k**. =20 --=20 2.51.0 From nobody Fri Dec 19 10:41:46 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 83841263F4E for ; Fri, 10 Oct 2025 08:34:29 +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=1760085271; cv=none; b=pYV8F7Aq/VBR958EC0i1KZlPgVYQdOg+0qfpRb0Wj8O/kqe6iEMA4SMQI0GM9mMv7/jc5NMQBTUcTRDPfAPbeer0vGcvvOawjdoNI5g3mSQr9cMvEanl467MfGoN3B5tMHMSWrZk5Yk4FgE0nCnTIOhw0o/rcL/vyN5QTEZHvq0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085271; c=relaxed/simple; bh=mCyYCLeUxzP8nczjafTMCHajKjKFiu4GEEWSc+4bDkE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WJav6shmWpXKcRknKAEjTAc4O31IR/AgkfsQEWXBfnL1Lzf2EQ6GEfmojEmTn3FujUiLAlbbmpdgTnva6lZVqq9373mpTRg+It2P1HPYXdPIghBKaMUW+KOdAJLQ8SpQpznbkgvglLurlUTtgqOyRCdaUYS1A5ZhSAoBsTmB9mE= 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=ebhizZOi; 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="ebhizZOi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085268; 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=V1XMRI4/v+a/C5bhtXa/khLyHUWK2jnBilgpoU7lAjA=; b=ebhizZOi4FlbRnD+X6lpyjFHJ/xcI5hFzlROQykGSJFrHY8x/CdKAhq6RmovSm24f1IiqT NDqxr6yH4EIQYJFBQdh8h3rOykswRPfo9DumjBwfiCAIL2qj7zN0TLcjJ0BJ0GhBQqHQOZ 62yHx09r/e1RU2uTqQsnNqL3CpgI8cE= Received: from mx-prod-mc-02.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-175-99Nzr5ugOZmQkcT-1xOcmg-1; Fri, 10 Oct 2025 04:34:27 -0400 X-MC-Unique: 99Nzr5ugOZmQkcT-1xOcmg-1 X-Mimecast-MFC-AGG-ID: 99Nzr5ugOZmQkcT-1xOcmg_1760085265 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-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9757F1956086; Fri, 10 Oct 2025 08:34:25 +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 40EAD19560BB; Fri, 10 Oct 2025 08:34:21 +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 3/9] Documentation/rtla: Fix typo in rtla-timerlat-top.rst Date: Fri, 10 Oct 2025 10:33:32 +0200 Message-ID: <20251010083338.478961-4-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" Fix "seem" in place of intended "seen" in rtla-timerlat-top documentation. Fixes: df337d014b57 ("rtla: Add rtla timerlat top documentation") Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/tools/rtla/rtla-timerlat-top.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/tools/rtla/rtla-timerlat-top.rst b/Documentation= /tools/rtla/rtla-timerlat-top.rst index 7dbe625d0c42..72d85e36c193 100644 --- a/Documentation/tools/rtla/rtla-timerlat-top.rst +++ b/Documentation/tools/rtla/rtla-timerlat-top.rst @@ -21,7 +21,7 @@ DESCRIPTION The **rtla timerlat top** displays a summary of the periodic output from the *timerlat* tracer. It also provides information for each operating system noise via the **osnoise:** tracepoints that can be -seem with the option **-T**. +seen with the option **-T**. =20 OPTIONS =3D=3D=3D=3D=3D=3D=3D --=20 2.51.0 From nobody Fri Dec 19 10:41:46 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 C83F9262FFF for ; Fri, 10 Oct 2025 08:34:37 +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=1760085279; cv=none; b=Cir845rUQoUi+1cHZvt7s8/QCmOKeAYz6SDasEvy+ieLaP1s0rikFXTIc97zOTnLN42TyVFXdCm1NorFqnwBjevP7xMHOx24gUaWRaElUyPIuU2BxV+9JSczTk+qWcvMYcwiAOlUBW6vIu/LGVTbarDNBA7D4W9W7yUAiE+SsKM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085279; c=relaxed/simple; bh=sUChDGfLfRo2acVDpiskhoCecnBt0+lRXhNSLm09ydA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WttzTQAPTs4r9ZFugqvfbkkdVQ9T3zFdOn5w/5/rb8lbk3NZ6mm1M4s4KJcCHAy0n29bmtMHzjaqG5c467VMW+x1Su0n0OfI0xbuo5ZNKy8bsau/fRseuFEFu8huQiRVWWl8sDZ8PFhpCTGBZUEL+U2vr4orG6vHxl71HQnq40Y= 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=S7ZTT0PX; 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="S7ZTT0PX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085276; 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=oejrMhy4RaX8WADxWIYHBRaQd+uYLCICR2ZFUHvioRI=; b=S7ZTT0PXAfId9FAihCQZvkCBHefnsJ3T3UnhSv7eY5dvBascUTvjni7oUMhv2ibF+wsvY6 cX1fHrZ3cRpGjsYWh+YcjB+vwnd7ulchGrx7cEi07ZN7+NdTV0hrp+j6D3Bp9QJ5EGUzEZ NOY5FjWZ0iMtYbRFI/YnX7kmk6WldTg= Received: from mx-prod-mc-03.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-341-RkSkV1QBPUujzH0JmvtpiQ-1; Fri, 10 Oct 2025 04:34:32 -0400 X-MC-Unique: RkSkV1QBPUujzH0JmvtpiQ-1 X-Mimecast-MFC-AGG-ID: RkSkV1QBPUujzH0JmvtpiQ_1760085271 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-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 88EFA19560AA; Fri, 10 Oct 2025 08:34:31 +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 2315F19560BB; Fri, 10 Oct 2025 08:34:25 +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 4/9] Documentation/rtla: Fix typo in common_timerlat_options.txt Date: Fri, 10 Oct 2025 10:33:33 +0200 Message-ID: <20251010083338.478961-5-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" Fix spelling error "equilavent" in place of "equivalent". Fixes: 173a3b014827 ("rtla/timerlat: Add the automatic trace option") Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/tools/rtla/common_timerlat_options.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/tools/rtla/common_timerlat_options.txt b/Documen= tation/tools/rtla/common_timerlat_options.txt index e7074eb36468..33070b264cae 100644 --- a/Documentation/tools/rtla/common_timerlat_options.txt +++ b/Documentation/tools/rtla/common_timerlat_options.txt @@ -13,7 +13,7 @@ Set the automatic trace mode. This mode sets some commonly used op= tions while debugging the system. It is equivalent to use **-T** *us* **= -s** *us* **-t**. By default, *timerlat* tracer uses FIFO:95 for *timerlat* = threads, - thus equilavent to **-P** *f:95*. + thus equivalent to **-P** *f:95*. =20 **-p**, **--period** *us* =20 --=20 2.51.0 From nobody Fri Dec 19 10:41:46 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 8D465262FFF for ; Fri, 10 Oct 2025 08:34:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085285; cv=none; b=qTcM5Enljv46gj+Rqn2sos9YOdhfvU86szEGo8oYU3SiJln9zpLC1gocDvCvMMMtxrjl4IiXJwzngnUrxdXfATufS1paWn7Y1F6e/A9jnPoELPaK/sB1Ms7+uZuSfNsNMOUdOsGW09i9rdpNRjZ58b5fERhQQbJym6B4tfDMYj4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085285; c=relaxed/simple; bh=lAM1OCRdCkIbXWLfPoZpdYZ+SIeHc968B6VtBUf7nJc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UiU8Q2RbIq5NarRs00B499kOoISf7jZ/1X/6mQdB4ME+ICqRjUyUO0C+1OTGKXRSFrMsNLP00nVHUYB/tlPYf9dVt0NDu7wpg19mTrRExQXfErtickDH+a4J/2+R2ZIX1AAVB0nAlDvlhkZbTQD0QkowsacLUMOXgFMqi0cKdqY= 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=XBmM3tvC; arc=none smtp.client-ip=170.10.133.124 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="XBmM3tvC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085282; 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=Z/V9PCnlmfXMNU9IVcL16oTLGCKpj8jIKEGtxCINH5U=; b=XBmM3tvC05cS7DtxOw5FQzm6uQPn+TkMvio1/ofHJNd8tmySinU/+OUSJlWA/n2eX05bry xElxqc0dCynQ8aI0x4kfwrxICABHrthqT2GV5xXNPj1N8Lc1XiNFMlbQGIhZCk7ZTiDEAM zAPkPoQVCETJbYPVdlO0sHuKhUsJ9NQ= Received: from mx-prod-mc-05.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-352-jNBY_WpNPVWnwk9Wmrqs1Q-1; Fri, 10 Oct 2025 04:34:38 -0400 X-MC-Unique: jNBY_WpNPVWnwk9Wmrqs1Q-1 X-Mimecast-MFC-AGG-ID: jNBY_WpNPVWnwk9Wmrqs1Q_1760085277 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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id BF61019560AE; Fri, 10 Oct 2025 08:34:36 +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 2C41919560BB; Fri, 10 Oct 2025 08:34:31 +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 5/9] Documentation/rtla: Correct tracer name for common options Date: Fri, 10 Oct 2025 10:33:34 +0200 Message-ID: <20251010083338.478961-6-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" Several options in common_options.rst say "osnoise tracer" for both osnoise and timerlat. Use |tool| variable so that the correct tool name is used. Fixes: b1be48307de4 ("rtla: Add rtla osnoise top documentation") Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/tools/rtla/common_options.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/tools/rtla/common_options.txt b/Documentation/to= ols/rtla/common_options.txt index 8ca424ab0faf..a2f9c03810b9 100644 --- a/Documentation/tools/rtla/common_options.txt +++ b/Documentation/tools/rtla/common_options.txt @@ -1,6 +1,6 @@ **-c**, **--cpus** *cpu-list* =20 - Set the osnoise tracer to run the sample threads in the cpu-list. + Set the |tool| tracer to run the sample threads in the cpu-list. =20 **-H**, **--house-keeping** *cpu-list* =20 @@ -35,7 +35,7 @@ =20 **-P**, **--priority** *o:prio|r:prio|f:prio|d:runtime:period* =20 - Set scheduling parameters to the osnoise tracer threads, the forma= t to set the priority are: + Set scheduling parameters to the |tool| tracer threads, the format= to set the priority are: =20 - *o:prio* - use SCHED_OTHER with *prio*; 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Fri, 10 Oct 2025 04:34:43 -0400 X-MC-Unique: nIu6KRYxO9aTQMka6MOPkw-1 X-Mimecast-MFC-AGG-ID: nIu6KRYxO9aTQMka6MOPkw_1760085281 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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AA77E19560AE; Fri, 10 Oct 2025 08:34:41 +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 41D8619560BB; Fri, 10 Oct 2025 08:34:37 +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 6/9] Documentation/rtla: Mention default priority Date: Fri, 10 Oct 2025 10:33:35 +0200 Message-ID: <20251010083338.478961-7-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" RTLA allows the priority of workload threads to be set using the -P option. This is covered in docs, but the default state for RTLA's own user workload (implemented in timerlat_u.c) is not mentioned. Add mention of the default user workload priority as well as a reference to osnoise and timerlat tracers for kernel workload priority. Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- 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 a2f9c03810b9..b842f065c8f6 100644 --- a/Documentation/tools/rtla/common_options.txt +++ b/Documentation/tools/rtla/common_options.txt @@ -42,6 +42,8 @@ - *f:prio* - use SCHED_FIFO with *prio*; - *d:runtime[us|ms|s]:period[us|ms|s]* - use SCHED_DEADLINE with *= runtime* and *period* in nanoseconds. =20 + If not set, tracer threads keep their default priority. For rtla u= ser threads, it is set to SCHED_FIFO with priority 95. For kernel threads, = see *osnoise* and *timerlat* tracer documentation for the running kernel ve= rsion. + **-C**, **--cgroup**\[*=3Dcgroup*] =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 2.51.0 From nobody Fri Dec 19 10:41:46 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 Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- 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 From nobody Fri Dec 19 10:41:46 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 665D02773F3 for ; Fri, 10 Oct 2025 08:34:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085299; cv=none; b=DuSEpLBUC8s5yGTuDRUY7S/ZgpbqTok1CaEjQJ1tBtd+HOlHX8dbgeLSKdY6Kthz5pu1Lt5IPa6VFxEvwbVrQmMmf+SmEnImWajiYvNcypYpUod44+tgg70/nSrTe0ogx1cZKqoZ2IvbIjbciYOh3s+EZJ2zI8WcWUm2NzOFQMg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085299; c=relaxed/simple; bh=ETcUFRp7Y640qwjOoQZKCzn4RuBAqnHbLA1tNYHmtGY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pa33fH9t4hPgUMTG7SI0hqkjm5kPTb4vF1jfdjojV82cRhec1JLXu8iZvj5k4wiX/Kbon+qBDFHvJ6emuBcciOeNhNzDFE9NUQbwx+CHVCbou1EqPyRgiS6hC01ZgZlr4UTlj3w6SPjc2QUfCajeLVEUavOng9mN1N5QTitM06A= 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=MkQ/7G7r; arc=none smtp.client-ip=170.10.133.124 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="MkQ/7G7r" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085296; 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=41+4ai0rqazcMx3eP0C0LY+GmTK8OcTNHQBt4S97B2Q=; b=MkQ/7G7rbFWGYyNYavV8KEeNvqrLE38uDYlPqh2vl+piddAf0omdz1m4tTeuTp6yORTMMa SBOD6MnBACPaCzN7rkGyoN3C2TQbHr/4lc8C6mjs+1PHF5ol4ejeTvIDPcCNwjSZVSWdu3 AKePDmEVGACo+eOL6E2OaQ3quRZo324= Received: from mx-prod-mc-01.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-520-kjH4I658MX6CxCuls_x2PQ-1; Fri, 10 Oct 2025 04:34:53 -0400 X-MC-Unique: kjH4I658MX6CxCuls_x2PQ-1 X-Mimecast-MFC-AGG-ID: kjH4I658MX6CxCuls_x2PQ_1760085292 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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DF413195608C; Fri, 10 Oct 2025 08:34:51 +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 7CAFA1955F42; Fri, 10 Oct 2025 08:34:47 +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 8/9] Documentation/trace: Specify exact priority for timerlat Date: Fri, 10 Oct 2025 10:33:37 +0200 Message-ID: <20251010083338.478961-9-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 timerlat tracer documentation mentions that threads are created with real-time priority, but does not mention which priority and scheduling class is used. Add the information so that users do not have to look it up in trace_osnoise.c. Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/trace/timerlat-tracer.rst | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/Documentation/trace/timerlat-tracer.rst b/Documentation/trace/= timerlat-tracer.rst index 53a56823e903..68d429d454a5 100644 --- a/Documentation/trace/timerlat-tracer.rst +++ b/Documentation/trace/timerlat-tracer.rst @@ -43,12 +43,12 @@ It is possible to follow the trace by reading the trace= file:: <...>-868 [001] .... 54.030347: #2 context thread ti= mer_latency 4351 ns =20 =20 -The tracer creates a per-cpu kernel thread with real-time priority that -prints two lines at every activation. The first is the *timer latency* -observed at the *hardirq* context before the activation of the thread. -The second is the *timer latency* observed by the thread. The ACTIVATION -ID field serves to relate the *irq* execution to its respective *thread* -execution. +The tracer creates a per-cpu kernel thread with real-time priority +SCHED_FIFO:95 that prints two lines at every activation. The first is +the *timer latency* observed at the *hardirq* context before the activation +of the thread. The second is the *timer latency* observed by the thread. +The ACTIVATION ID field serves to relate the *irq* execution to its +respective *thread* execution. =20 The *irq*/*thread* splitting is important to clarify in which context the unexpected high value is coming from. The *irq* context can be --=20 2.51.0 From nobody Fri Dec 19 10:41:46 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 168162773F3 for ; Fri, 10 Oct 2025 08:35:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085304; cv=none; b=eqNR58qGF+0rOgSl5MHCBDTVaWOTviEYqK87chBB3TDFCvsHAWvigVDJHXA2nl5j1AEMKA2QXaXxQlpfpYFH8Bi+hk1GbM/4kPWRvLdKNm80/Ayo64Z3WKL11upM04ohTu+Q2z5Gcg+wgvCMyZRNgTKlUWwzNNy+7sWR7bdSWOo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760085304; c=relaxed/simple; bh=tRw5rg2zI8NC3fDx/8TBWVNhmxDyhE6zhiFF/+GfaIg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=csyqenrAq1o5c1y9FRI7rDcCuXObNGx9AksfKYDnJOOT+fe30na0fTu9zhuAhrsIYMMOVotjSUCKJeqDA7Bc2Ei13t0IQyxu7e4qkGHXwU97E/5Y2qIaR+i7RjAmNeaLdbn4uT/1oISLJgSeTq3MtD9MmulfJ0oHJnw9vJ2dl1g= 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=BDVzODCp; arc=none smtp.client-ip=170.10.133.124 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="BDVzODCp" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760085302; 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=iEScr6rBc4nyrlbe3x+UnFuFXbffOUB35k7ObRLSOEw=; b=BDVzODCpO8HGr8SEC2Lob+TcsD0foHjKvENKB7PGXoIcXBiJEUjutV9sTJJ1GIN5PDxwTq 68JXpRX2Ogkbo4o6XqWDIgV6x4VhYNIGNtrddKP6aNGfqgY51mSTHv+GQNwUWBm2IN33Y6 5roztyM2xmalz3vXNtF0/sMuAtW+P74= 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-96-aLW8leMqM9Ol3yimznfKbw-1; Fri, 10 Oct 2025 04:34:58 -0400 X-MC-Unique: aLW8leMqM9Ol3yimznfKbw-1 X-Mimecast-MFC-AGG-ID: aLW8leMqM9Ol3yimznfKbw_1760085297 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 48DD919560B1; Fri, 10 Oct 2025 08:34:57 +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 67E7919560BB; Fri, 10 Oct 2025 08:34:52 +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 9/9] Documentation/rtla: Include defaults for tracer options Date: Fri, 10 Oct 2025 10:33:38 +0200 Message-ID: <20251010083338.478961-10-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" Commit 0122938a7ab4 ("rtla: Always set all tracer options") changed the behavior of RTLA to always set all osnoise and timerlat tracer options to default values taken from the tracers whenever an RTLA measurement is started. The change was done to make RTLA results consistent on subsequent runs of the same command. Include the default values for tracer options also in documentation where appropriate. Signed-off-by: Tomas Glozar Acked-by: Bagas Sanjaya Acked-by: Steven Rostedt (Google) --- Documentation/tools/rtla/common_options.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/tools/rtla/common_options.txt b/Documentation/to= ols/rtla/common_options.txt index 26e94d291a70..1c4f3e663cf5 100644 --- a/Documentation/tools/rtla/common_options.txt +++ b/Documentation/tools/rtla/common_options.txt @@ -2,10 +2,14 @@ =20 Set the |tool| tracer to run the sample threads in the cpu-list. =20 + By default, the |tool| tracer runs the sample threads on all CPUs. + **-H**, **--house-keeping** *cpu-list* =20 Run rtla control threads only on the given cpu-list. =20 + If omitted, rtla will attempt to auto-migrate its main thread to a= ny CPU that is not running any workload threads. + **-d**, **--duration** *time[s|m|h|d]* =20 Set the duration of the session. @@ -57,6 +61,8 @@ **--trace-buffer-size** *kB* Set the per-cpu trace buffer size in kB for the tracing output. =20 + If not set, the default tracefs buffer size is used. + **--on-threshold** *action* =20 Defines an action to be executed when tracing is stopped on a late= ncy threshold --=20 2.51.0