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 54C5F43AD7; Thu, 14 Mar 2024 19:05:31 +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=1710443131; cv=none; b=alpOaqKMt4QRCo4lJ2CdppOnsZq1W3Kg0TIJYOSIOahS+zPoVKQorEXoWYzsa/CKRBaoYpSdVz9PbWB005OGVIhOl+Il09YLd+ZPAvCJUF9UqhneDjWbMX8A0zvhHTQp02w6CzWGPRT8FTerAwMpuE1HA/9rqK6P/P3ApPMZ1m8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710443131; c=relaxed/simple; bh=qZFoNjK7/mZ/PeVekRSJtmaHMzHJsH0JeAgm3Vvoj2M=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bqlGr8IMWV7ZucdcOrLxKA0p5faZVw1df8nAfmPf5g8A5nSz+nju8ROPQkvqsX93KXv1Bu0QqKJVYCBJ7hINFwlxK+XFZkdiLY35oe/1VTK8cW2JrlpqEPvr4RJGZPhcBHB8OOin/cN7IrAwZdm5L5xEP0BhcqlzOrpZ11FpyVQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=s7lgmnIb; 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="s7lgmnIb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8A82C433C7; Thu, 14 Mar 2024 19:05:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710443130; bh=qZFoNjK7/mZ/PeVekRSJtmaHMzHJsH0JeAgm3Vvoj2M=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=s7lgmnIbdC1nn4gqbhJLDJTjGfmbSXQqbPqdIJXWyAJ6eC5VxPE5zPozOy63sgPTo WAQfOo6rhNNpoVir6ADJCp0Hb+PLaFiN5pplALmNSYhP2Bj+KHjWrUcvdJolWmX7Zm 8wptTSjXcVsgOXdp+Dk6rtWACB4kwZlsFSQoSOb1WlTDH9JHdEmy9kSndJwaSytM3/ tivwnUBURT9aaQ2WZg4k7HaU0TG3c8wZ3WbIDY60o3ROiBeGzCa9+n9xuY7BNr7RNF /uKrdsxFOMyuCxZZ9ZJb9wr0YTUDfV/slLXyHiVdu+K5V2gMcAiAs0a8VwGjmoRIQa Q4/2sv9RPr3/A== Date: Thu, 14 Mar 2024 12:05:28 -0700 From: Jakub Kicinski To: Haiyang Zhang Cc: Shradha Gupta , Shradha Gupta , "linux-kernel@vger.kernel.org" , "linux-hyperv@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "netdev@vger.kernel.org" , Eric Dumazet , Paolo Abeni , Ajay Sharma , Leon Romanovsky , Thomas Gleixner , Sebastian Andrzej Siewior , KY Srinivasan , Wei Liu , Dexuan Cui , Long Li , Michael Kelley , Alireza Dabagh , Paul Rosswurm Subject: Re: [PATCH] net :mana : Add per-cpu stats for MANA device Message-ID: <20240314120528.1ac154d1@kernel.org> In-Reply-To: References: <1709823132-22411-1-git-send-email-shradhagupta@linux.microsoft.com> <20240307072923.6cc8a2ba@kernel.org> <20240307090145.2fc7aa2e@kernel.org> <20240308112244.391b3779@kernel.org> <20240311041950.GA19647@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> <20240314025720.GA13853@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> <20240314112734.5f1c9f7e@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 14 Mar 2024 18:54:31 +0000 Haiyang Zhang wrote: > We understand irqbalance may be a "bad idea", and recommended some > customers to disable it when having problems with it... But it's > still enabled by default, and we cannot let all distro vendors > and custom image makers to disable the irqbalance. So, our host- > networking team is eager to have per-CPU stats for analyzing CPU > usage related to irqbalance or other issues. You need a use case to get the stats upstream. "CPU usage related to irqbalance or other issues" is both too vague, and irqbalance is a user space problem.