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=1793349457; b=HmTXNoX3fnJLMOKw1vaP0qPbRuN0QU5JI+uWFD6PFfUeFwW1LteHucXiJCkVl6llBLzV wq4cmTIDVBAHCgWijaD2aV8xDdnNurS0s10zMjlSkzrWuIhSqNGUE9Hg3I1PBupTMh5TW dJ5A8pgJTxcWteB747shUiR692sXa8clc/U5iYAY9rs3MEIzXPS4g6aT8vR+D3oQAVNkm s0CzxGJ/HVJa/+pbxvNBEXgH6XneZA7OLJzEK3vji88go5eN3KK0rop6YZmttbnvyoMrQ z10clY03dSqDFR6nH9d7Io0PYhYmRb9hBCZts4ATNJ7JiVYehOQ2zaL8yr5c272/hjw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793349457; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=GawCNvQaEVMoO9UYUSxbeePzX1+rPodyN9EsxQcNuOE=; b=fWcVj+hvz3RXpcB8geuAJsqylSamif0xo7nnN+kR2WUAJktfAmKVgyhJ89KEneL2QE/H 9LbG0LUW4ktq3muWgjVK0pJC/XHAXRD3PSt2WZIIeQjOk+qqxUzKd1UMSc2aYc1nWAy2e frVBctTLHoz6VD9Ges+s5UUSgLlUmh4GOIptuhqawKMlfXvVAvh04yKXb1wU0Q2cMZOwt qVV6H4oU6UlLO7hj/x9YgR0dROam5LrdXvr/T3COwLAFdhFnar4+HS/+XOSaaKaiMo7/Z WmGwZ8RaZ47PRDuN9M1+bIyTxOB3Z5qGTyKBSY/zo8xouh3c26QjJuVsjz4mH9ofTew== 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=fvUzDWLU; 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 26B75606A31C for ; Fri, 30 Oct 2026 08:37:36 +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=fvUzDWLU Received: by smtp.kernel.org (Postfix) with ESMTPSA id 80DF51F0093A; Fri, 30 Oct 2026 08:37:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793349456; bh=GawCNvQaEVMoO9UYUSxbeePzX1+rPodyN9EsxQcNuOE=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=fvUzDWLUIpquMcU9Nb+O+CAPPmReiVfMB6AJH4HtQFVOA6AyymCOwnry7Vhp/7t+l eLIT+/KaBzHOeXNoiZ0Ou0oBK3CEA+dnr+EG1+7J4hpkx1o8EkHvVFHlZMwyetff4U hwxTdoKtZbEtUIGfXZ4/ZAZ7emcXjuHat0PlBpWlDaceTnz2KxDnK5B414YRrumwGW Oa+9PmehK9+2E9nXDEwUlhlJQxlnXgRrwYQ55TkUa9YwGG2CfZASSqKoXUhGhEdXp2 THNzOWPZpnQT7FY13bzG0zFlCn7SYbHjTIffSMfBb8VOf4YMsc5FqvmsZZUyh3zqUP 2U8FWcyRCyx8A== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 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: <20261030083400.66005-3-liuqiangneo@163.com> References: <20261030083400.66005-1-liuqiangneo@163.com> <20261030083400.66005-3-liuqiangneo@163.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 30 Oct 2026 08:37:36 +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/20261030083400.6600= 5-1-liuqiangneo@163.com?part=3D2