From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 B360E34BA56; Mon, 12 Jan 2026 16:51:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768236663; cv=none; b=EGVbjVIjL3912GDBqcqXgNjK79XJl3Ff2ccrmIZdvk9MdKQmABsjbG00mbF9il3He18S1lzqxcj8XvPBHUFAy6xmLnCjkpH6zEj1WfpLdX7sZy2vYl4TPjcoI+ISuOXlzEbVwUEKa3k7TWqeVGCuJ6ascYeNWrwAoZppJsCDvew= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768236663; c=relaxed/simple; bh=fnfFypMptK9nR/ENG+mPzO2KwNInH7zg0MNxfXuPPtU=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=fuv9KiE9xhLCTZbmjW5jGFCG2LmOPB7vclKBZv0ofPaM49W946Tn832d0Rb8CPGc/jBkLACWSiQwSweLlDFhSS2sBbHb1QR9HVcPJb1leytWhB6uCfj3/uJz8vTW+dIZLmm+xYB3KQ4nsI1qkMLJqolWqo8LJr9Kchlm5RJS5pQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=CgOUCd6V; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="CgOUCd6V" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768236661; x=1799772661; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version; bh=fnfFypMptK9nR/ENG+mPzO2KwNInH7zg0MNxfXuPPtU=; b=CgOUCd6VW9mJ903rEG5rCtnNFpcBHFJT1eXQKGPj2zaI9gbacajbTcUl imsjEkWGAfr6ywywOgUwaTkEnNLrJNdRlhX77T7be8puMnqk9Z7VbCmPH f73/QBlvVjkPySLQarbVWEPFrcmpFuY07TuL7TIixTO3WjE/AxA5mvQRT qzKKJ/CJZvTSoTwresa6V/h1mgyNODV1tQWjHaDO+SkHqTe02229bR9ta eKefArza+ZP+RBruoJAiICLVvMPXQ5ef8cwwUTjt+go+zVrCLDEPXzqH+ b7CzOWF61d/hX4xK4oR8j7nVGsMpoJCG6g+eNrVhd1lSgbZkYg0IWOWjQ w==; X-CSE-ConnectionGUID: Nf4V+xGIQA6H40fZYxKorg== X-CSE-MsgGUID: Go1gkgJiT5qUf74eueXn/A== X-IronPort-AV: E=McAfee;i="6800,10657,11669"; a="73144478" X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="73144478" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jan 2026 08:51:00 -0800 X-CSE-ConnectionGUID: Fv8UnYvNRT6BrKFH0vXztQ== X-CSE-MsgGUID: RuOYQtVaQJCUUYymhoVEHQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="203292499" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.54.38.190]) by orviesa006.jf.intel.com with ESMTP; 12 Jan 2026 08:51:00 -0800 Received: by tassilo.localdomain (Postfix, from userid 1000) id E2AA1302315; Mon, 12 Jan 2026 08:50:58 -0800 (PST) From: Andi Kleen To: Ian Rogers Cc: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Jiri Olsa , Adrian Hunter , James Clark , Thomas Falcon , Thomas Richter , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 0/2] Add procfs based memory and network tool events In-Reply-To: <20260104011738.475680-1-irogers@google.com> (Ian Rogers's message of "Sat, 3 Jan 2026 17:17:36 -0800") References: <20260104011738.475680-1-irogers@google.com> User-Agent: Gnus/5.13 (Gnus v5.13) Date: Mon, 12 Jan 2026 08:50:58 -0800 Message-ID: <871pju4vwt.fsf@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Ian Rogers writes: > Add events for memory use and network activity based on data readily > available in /prod/pid/statm, /proc/pid/smaps_rollup and > /proc/pid/net/dev. For example the network usage of chrome processes > on a system may be gathered with: > ``` > $ perf stat -e > net_rx_bytes,net_rx_compressed,net_rx_drop,net_rx_errors,net_rx_fifo,net_rx_frame,net_rx_multicast,net_rx_packets,net_tx_bytes,net_tx_carrier,net_tx_colls,net_tx_compressed,net_tx_drop,net_tx_errors,net_tx_fifo,net_tx_packets > -p $(pidof -d, chrome) -I 1000 But AFAIK that's for the complete network name space, not just the process, thus highly misleading in perf context because the scope is incompatible. -Andi