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 6804717F3; Fri, 26 May 2023 03:25:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F170C433EF; Fri, 26 May 2023 03:25:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1685071559; bh=BTIaAcxw6JMw/kBG+7/ytX8/qt2HopHJ9Nqlbp6SrPU=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=eIztQ0pfSz7V7fBvUzeog84FT45VkAZ2Lae27wsJjMo2fG1neQr92ibbIFgGHsQ2d r4JJTPcmgjMJnT+uzL6zfSlfkfBY8dFo++z67mnF7wrr/9P/KiWD0ShmXwko8V+SIE zoqSY3IREiAbPn2Znwq2kn2tRNNV2Ly7FViIEibdDkP7RxB1FMhHu22yVTGyQYbsN2 OX4koaThdA9hIKe7/x64Ho3jdyINstDb+ujciIDpcmybpuL5c2X9JGIqtJNRCxc5Ni jKHY5EnBMTUPsHPsGt8BBA+PoBgarYho9GcKQlrbQUIpEZqkQSQWDIuFJen+j5HryZ CMMU/YZeGrRJQ== Date: Thu, 25 May 2023 20:25:57 -0700 From: Jakub Kicinski To: Haiyang Zhang Cc: linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, decui@microsoft.com, kys@microsoft.com, paulros@microsoft.com, olaf@aepfle.de, vkuznets@redhat.com, davem@davemloft.net, wei.liu@kernel.org, edumazet@google.com, pabeni@redhat.com, leon@kernel.org, longli@microsoft.com, ssengar@linux.microsoft.com, linux-rdma@vger.kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, bpf@vger.kernel.org, ast@kernel.org, sharmaajay@microsoft.com, hawk@kernel.org, tglx@linutronix.de, shradhagupta@linux.microsoft.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH V2,net] net: mana: Fix perf regression: remove rx_cqes, tx_cqes counters Message-ID: <20230525202557.5a5f020b@kernel.org> In-Reply-To: <1685025990-14598-1-git-send-email-haiyangz@microsoft.com> References: <1685025990-14598-1-git-send-email-haiyangz@microsoft.com> 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, 25 May 2023 07:46:30 -0700 Haiyang Zhang wrote: > lot caching and memory overhead, hence perf regression. Horatiu's ask for more details was perfectly reasonable. Provide more details to give the distros and users an idea of the order of magnitude of the problem. Example workload and relative perf hit, anything. Please do not repost within 24 hours: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html -- pw-bot: cr