From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 09CF930F7F2; Fri, 12 Jun 2026 19:28:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781292538; cv=none; b=p/3+Jpo/jax8enNe6GkJ4ByWcfhXbBnpMtp2XhV12OTzsse45iI3dPxu1XXElLuUMwUNLfu7AIGaO5Z1o8kjvEg2/bq+B5qIysbz8epCykhUnGEfV4UD/2B/PkC5M08Q3YYwpTzB/k6SZMZ4+mZpEy4LAu2MMog3XS+E3LETxZ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781292538; c=relaxed/simple; bh=CBQGwm9rl/EjaOlLBMxJBNs37qlZaT3UAADoq+Malnc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ZDUQhdbVCIurRhFuZRY3bGTsU3oYNE+jb3qE/MXDT6FCimRZbPIpl0L494qDNIZJc/THYHHOjtMrvniDVvXus4iuAOZxMvchdDaVrPQwuY+948MwVNuyxlBCWF3Ju8k02rDqNgOk8FALJZW9OiIpsm0EOmHOYLQs0LK4Z5U0LsY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eDj5Qq/7; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eDj5Qq/7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1781292536; x=1812828536; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=CBQGwm9rl/EjaOlLBMxJBNs37qlZaT3UAADoq+Malnc=; b=eDj5Qq/7NHxTbXnEhxYbMx/oRmd/J8ioQ8LEGq/WLTZ/5IG3zeC77l5M nbNgAUGVFeYKR6AVJg5rU9hEGD5lny359uNMKdJf62L62gPbh/OOfdXeb bhqcRKIsXdl+gXOYpw+y8XkemaH9gi/MSuULMBbVIvkw5Xb+KuXrIdS2n 8Xo6etOhl39BCe2QJGrhPwUDDEqVtN0UmMVNSsdpzlg5VGEZ6DnnobsuG oSAZ20z492lErEBcShX+hVMkm7JsE30FN01q+afc7sVyDgfNATf7AVJZi FmO+2yGEgveUptQizKbrwX0sHXkrQlHoNsoBrLyd3gKoBGLgQNlnWDPPJ Q==; X-CSE-ConnectionGUID: ikejmjceRKWTc2dDQ1WT8w== X-CSE-MsgGUID: kIA2BFDVTzuWPCpRioLYrg== X-IronPort-AV: E=McAfee;i="6800,10657,11815"; a="81264338" X-IronPort-AV: E=Sophos;i="6.24,201,1774335600"; d="scan'208";a="81264338" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jun 2026 12:28:55 -0700 X-CSE-ConnectionGUID: Tt0asowNRgeGjnAmrMUfhw== X-CSE-MsgGUID: 5u6m39prScOVQp6yL2Zyjw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,201,1774335600"; d="scan'208";a="246963775" Received: from rodrigoa-mobl1.amr.corp.intel.com (HELO tfalcon-desk.attlocal.net) ([10.124.220.220]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jun 2026 12:28:53 -0700 From: Thomas Falcon To: linux-perf-users@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Dapeng Mi Subject: [PATCH] perf: Document recent additions to the perf.data file header Date: Fri, 12 Jun 2026 14:28:47 -0500 Message-ID: <20260612192847.1221091-1-thomas.falcon@intel.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add documentation for recently added HEADER_E_MACHINE and HEADER_CLN_SIZE data to the perf.data file. Also fix a typo at the end of the header section. Signed-off-by: Thomas Falcon --- .../perf/Documentation/perf.data-file-format.txt | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt index 0e4d0ecc9e12..b90cba9168f8 100644 --- a/tools/perf/Documentation/perf.data-file-format.txt +++ b/tools/perf/Documentation/perf.data-file-format.txt @@ -464,7 +464,21 @@ struct cpu_domain_info { struct domain_info domains[]; }; - other bits are reserved and should ignored for now + HEADER_E_MACHINE = 33, + +ELF machine and flags data. e_machine is expanded from 16 to 32 bits +for alignment. Format: + + u32 e_machine; + u32 e_flags; + + HEADER_CLN_SIZE = 34, + +The size of the cacheline in bytes. Format: + + unsigned int cln_size; + + other bits are reserved and should be ignored for now HEADER_FEAT_BITS = 256, Attributes -- 2.43.0