From mboxrd@z Thu Jan 1 00:00:00 1970 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 C02F53321C7 for ; Mon, 20 Oct 2025 17:53:26 +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=1760982808; cv=none; b=nzmfyg3guH9L5ErLCXjC31eRENrA5NvN1yhznp3qm1l4oYnV5P7Ky5uLTsevE01WThvhyIYxM0ZraJ+TZktAbyF18PvcPkZmSfNbgVlnVEA1clq+Juv26NPg5WzA/BsU35HblfSUkKMLiy/IrKhnHTrFoTYqvxp5hAo1H5ef1dI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760982808; c=relaxed/simple; bh=V3kRiDp3vGAbgzbMZzOlHpq/3CkSZTRqr/w7qVw8RIc=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=urYIvX6Kj0iNIuJifTHDwol1NOtxQ70vcegIpGYDHoiBARZAGjIjtwm/GfBSZoKjmjOvnAsnunnfdD3992SAQXKZF3D1iJEa+F68xIc1tb4OLICFlKDTTkYyAE5KPtq2GpWLdqJrhlTTOyDUALtGMv7wFPGtlMFSdWqS0IMU+4Y= 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=bzs+u2Bv; 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="bzs+u2Bv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760982805; h=from:from: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=pxRCI9w0vwrChU6QN7Ie6ynLJhcqQq78vhMcRvozwhQ=; b=bzs+u2BvKipOYveJKbMatLsaF+E67qWph13cjbeB7Kw+9XtwKF4uutLHPm5x0+z9AS5OFU UWtJMrU/SROUK1+bCnE+OpPbtAoz9jfs+PnPo57MEPeEnaJcIB3KQf0/Pj0cqZZ8fPGVzr 5vL6pSz5QaU6z89NhFN448e4JJVbarU= Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-16-aCs_Kp6HNQSsLfQ0gsm2IQ-1; Mon, 20 Oct 2025 13:53:24 -0400 X-MC-Unique: aCs_Kp6HNQSsLfQ0gsm2IQ-1 X-Mimecast-MFC-AGG-ID: aCs_Kp6HNQSsLfQ0gsm2IQ_1760982803 Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-430da49fb0aso40961395ab.0 for ; Mon, 20 Oct 2025 10:53:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760982803; x=1761587603; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=pxRCI9w0vwrChU6QN7Ie6ynLJhcqQq78vhMcRvozwhQ=; b=e3j026nH/C1/+yXW3HutUFVTEd+oKKIHOJ4YOYq2/mOjD9CwSVe/MeTKSz/Ys5KvJo ynKzaDzSPQhs8o+MOwNLDArgCLV/HeFZ59aOQJNd7efLzLrBve4N44vM0wHTaL7Lhnb6 VJzZQ1AagEy0O9TZyIf3qFkXeSpWqGoaFoROI7aA+4qPAoljiwe04aQ0L/jMvZLFmj+G 8i2hFuv8NeqMsHAOneJWuRhuNxsATi4rzjgt3FIrvFwh6AhNGzOh/TzBh/TI5W4lpJI2 UHxjp3qDLEOKq+4gLG11FuOyXLrAgQRvnaDhccQvbpSsNK5kYQES6cpjxhcl74mDI0bE U3hg== X-Gm-Message-State: AOJu0Yy3xQKaBXJNOR7J3OaSBjZD+67PBz4lo2f9XcnE2JSDxaL8PWHl rxnVT2Rgg2iWEGkNe2DvSR6OmE1OTcjURYV4SeAOpMxyDMNOp8AN/vVBRQ3cbNFSfL0oErSQShY KVENszruDF8+HfZR50JRlLcs+F4HeIokXG+M2XRn3kQDjGLDfz95t/+gmlUJF9dZ0Hg== X-Gm-Gg: ASbGncuMgZjRSDDK4t748RPPhgHEzinleb6HIOcqhndHdi2V47sPzkRKwtGvcLu0gAF VqYAB6lnfa3Y/praFExPD+IS6CqtPXhzx5vCxnJnOCuz3hdVd2d/irtNifQJ4ajvHoOL+c3H7yX E6KbLSHjAw2l0HNVtUPrETt2p3JcI/fgwsGkTbD4xG20LpregdOjukaSaJdBcZ7vQwM5oBVPXPD VRKup2r8crJzgfIo0FxPZ4emom3wRmsM6MSV7LXGvr145PMT19Y5PYC2rIHFuFbowwgv5nHGa13 oiaLwEJx6hQutItqPABlq0sODgeizkm4BgQTvVerNtOMt4eBG9MwbhADgvzv/FFvBsULexOULr1 7GThRvD227lUAgtYQrM2agGfiVymL X-Received: by 2002:a05:6e02:198c:b0:430:c461:34c1 with SMTP id e9e14a558f8ab-430c52700b2mr217742095ab.12.1760982803580; Mon, 20 Oct 2025 10:53:23 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHqwALrZUWSrj+qkHQDwlvuffP7O2IVQUJ8UI8LIOpTC0/ScUChcalQi5vBXtjffr1HHB9a+Q== X-Received: by 2002:a05:6e02:198c:b0:430:c461:34c1 with SMTP id e9e14a558f8ab-430c52700b2mr217741695ab.12.1760982803100; Mon, 20 Oct 2025 10:53:23 -0700 (PDT) Received: from crwood-thinkpadp16vgen1.minnmso.csb ([50.145.183.242]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-5a8a976a58csm3127747173.47.2025.10.20.10.53.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Oct 2025 10:53:22 -0700 (PDT) Message-ID: Subject: Re: [PATCH 3/4] rtla/timerlat: Add example for BPF action program From: Crystal Wood To: Tomas Glozar , Steven Rostedt Cc: LKML , Linux Trace Kernel , John Kacur , Luis Goncalves , Costa Shulyupin , Wander Lairson Costa , Arnaldo Carvalho de Melo Date: Mon, 20 Oct 2025 12:53:21 -0500 In-Reply-To: <20251017144650.663238-4-tglozar@redhat.com> References: <20251017144650.663238-1-tglozar@redhat.com> <20251017144650.663238-4-tglozar@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-2.fc42) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2025-10-17 at 16:46 +0200, Tomas Glozar wrote: > Add an example BPF action program that prints the measured latency to > the tracefs buffer via bpf_printk(). >=20 > Signed-off-by: Tomas Glozar > --- > tools/tracing/rtla/sample/timerlat_bpf_action.c | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > create mode 100644 tools/tracing/rtla/sample/timerlat_bpf_action.c We should have the makefile build this, and add a test that uses it. -Crystal