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 94F4038B9AE; Mon, 19 Jan 2026 16:43:26 +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=1768841006; cv=none; b=Zscq3zl9t7HaAQOipmMowiUYXr3cBHdcB98NXXQroSFLFZDaDmzlqVcxQQEJue8SG/BOLTcHvNSDzh2+qy+ecxGIDcqHerxxvWYGAxIZzgHufAQMml7zumlvrxTP6FdV7Iml2tGlcSuk+ciNH945XAL0KnmSgSn5wa68YV7S8so= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768841006; c=relaxed/simple; bh=Blmndc2F8IpoDSrgJIam/viSIzwukGW+2zxBHD8tcAY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=QiVGMdq9DJOSqPvuwb9qdSxL2w2hQIX5/NtF+3RqzC0WhT9Ga1MWiQocu2Ruo24p2VWD0vTJVpojqYX9ITWu1P8vQ5PEhb0oK4rpVsCUdsRIUwG3QERm8utPUbFIQDwBEEZJcSLDa5fnxtSYPEB68k2PgcbF2z/UmW/uyNScekk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DGgVvr3X; 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="DGgVvr3X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C21EBC116C6; Mon, 19 Jan 2026 16:43:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768841006; bh=Blmndc2F8IpoDSrgJIam/viSIzwukGW+2zxBHD8tcAY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=DGgVvr3XuCa10j115khZv3duq9vhJQdbvzoN3BQO4pOAUuZznWNMNhUeaG58wZfmN vnuiKbhVbDyxlwOZN6aDMktTICaHJ9YwUB7ic8agnOfISs+1EGjzA4PyqeyohjykFS BUDJErre1jjFdsRaekzdC9IOEGd5i+Zok1q2AMQaDgBgCSMSxCrfOObhOy5ciHcZWU H0lA1bMKf0YEABczAh7wjN7NKxM4OAKdTHxRl5ofNtonKuy5efPyUc4rZ3XRdO8woT QoqWy60DodlLtvB/kX/N405k3ODTMX9araSE5mvJ24FCZZllmqGO+BbAc+Bh4O70mf l6jMTabE60tWA== Message-ID: <47152311-1357-44f8-ae12-61e4850e62c6@kernel.org> Date: Mon, 19 Jan 2026 17:43:20 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v4] page_pool: Add page_pool_release_stalled tracepoint To: Jakub Kicinski , Leon Hwang Cc: netdev@vger.kernel.org, Ilias Apalodimas , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , "David S . Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , kerneljasonxing@gmail.com, lance.yang@linux.dev, jiayuan.chen@linux.dev, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Leon Huang Fu References: <20260119102119.176211-1-leon.hwang@linux.dev> <20260119083759.5deeaa3c@kernel.org> Content-Language: en-US From: Jesper Dangaard Brouer In-Reply-To: <20260119083759.5deeaa3c@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 19/01/2026 17.37, Jakub Kicinski wrote: > On Mon, 19 Jan 2026 18:21:19 +0800 Leon Hwang wrote: >> Introduce a new tracepoint to track stalled page pool releases, >> providing better observability for page pool lifecycle issues. > > Sorry, I really want you to answer the questions from the last > paragraph of: > > https://lore.kernel.org/netdev/20260104084347.5de3a537@kernel.org/ Okay, I will answer that, if you will answer: What monitoring tool did production people add metrics to? People at CF recommend that I/we add this to prometheus node_exporter[0]. Perhaps somebody else already added this to some other FOSS tool? --Jesper [0] https://github.com/prometheus/node_exporter