From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793329333; b=smGx11M4d1OvlbVw+ITrU3ioduRoUFrXZArBsOovKTccA/ev2hsN8sIIasJWLQ9CbEj2 900z0VOi33oKj4csX/dX+gtuzM3sGIuo8QqRYoMkPb8ZxwSc5arVjl9wrmQhCt3at5EFm PtbWkymVq+LqHH8/Gu+8EGob6pO+YnP8RRF0TQig2NxzaROjstUaMmrxplb33zK4ZdpPn UGlV2XCsv3YyqY+hXy8zdfkTG0Yr9b9rBTscmnXIc1VUz2YzPzSU7e8ej/lcQXR+G3qtl 5bUthFg4hRVSlbxV9JzH5nNEhlNeSwGMEQiV7+/ywdS3+2f5DMTxt92D+W2jMA/ka7A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793329333; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=CTqjPQ5cTJMN7TPA7YZ0B17wjUxjkaWSkyRExqZQQ4g=; b=jna347hLAcv4et/Vda3EdztKi3xYmGQif9vjdNg4vAb0z3ko3VZGcRoq0tHnjh+6Xygw VwhuDTi5fPP3HBVGMk6IWEmtobS2mH0i6z2UTT60F2w8s9whm07y/Y+o9J1JkRlKYLfN4 avy95iHhsvPDtg6EkPPmZ4BXFg/Cau1T9gNp6x5QfgnsXeOcm64ugi5i3QsVGLeFXu3tM cGhk8q+CnKNs61QHfIq3hsauPLoGIAMyx+YQ0LASNzJ/ljKgNwSGvXBnT6ZyXRxG8NT0y 01I5plQSmqhxp/wPOWWgLw6zby5G6sJ4FZ9poFtzUfCYWaD8MNuGcbhqkjRlp7LrOHA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=lxKQgdMJ; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A9263606A336 for ; Fri, 30 Oct 2026 03:02:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=lxKQgdMJ Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09F001F000C1; Fri, 30 Oct 2026 03:02:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793329332; bh=CTqjPQ5cTJMN7TPA7YZ0B17wjUxjkaWSkyRExqZQQ4g=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=lxKQgdMJAhjVolTinBvOfROxMSLP+GJIbxahG1W0EspoiZbBYAIn7CWFCTT82CZLG qL3vvq2o/MuVPImCs1euHfFSFRWxf0ajmObuVLbWWiCfvJWcmcp57h2hU0g/THCK+d X74UwUfxS8T061OoIWwdraAe3uS0+JqWwmMPPGto3VrUt0zwlOvQUIYb3dNkVU62si nBg6Dgt2CLS327V2SGD+akCar3Ei0n+Fn1xKDzsVOINGkgWPn/Miy/f9kVEzgnvmgP jyLfVZPpzyh5HFxIg7AODMpy6FQdr7NTrkkE73iTMRYxKPemqtWp215fK55+gujIBa YSXI4wpVmneKg== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 2/3] virtio_balloon: add tracepoint for host ack latency Reply-To: sashiko-reviews@lists.linux.dev To: liuqiangneo@163.com Cc: virtualization@lists.linux.dev, "Michael S. Tsirkin" , "Eugenio Perez" In-Reply-To: <20261030025834.19160-3-liuqiangneo@163.com> References: <20261030025834.19160-1-liuqiangneo@163.com> <20261030025834.19160-3-liuqiangneo@163.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 30 Oct 2026 03:02:11 +0000 X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > From: Qiang Liu >=20 > Balloon inflate/deflate block in tell_host() for host buffer consumption. > Host-side stalls are easily mistaken for guest allocation issues. >=20 > Add virtio_balloon_host_ack to record tell_host() wait time, > virtqueue and PFN count, to split balloon latency between guest and host. >=20 > Signed-off-by: Qiang Liu Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261030025834.1916= 0-1-liuqiangneo@163.com?part=3D2