From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (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 3534A261B75 for ; Sat, 13 Sep 2025 08:01:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.165.32 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757750495; cv=fail; b=p7bEQ645T68IHX78zjaGK+3Inq8qf879D9fXqP/L/99fUaUT4l/accdOu1yTeDXBboyTvweJWeHYFGTQ1dtYqNIom2L2AGYh8R6/l4LOi1cx/ETfwT8c1OBZJxlBf8eQh7ZnJdQPDVkLvS2A72/BpwuwYE5lBLqtxya8EWIPqHI= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757750495; c=relaxed/simple; bh=Fjdu6a/gB8EMsNy49raAUvF1P5diDbSyPAnt5bKiv8Q=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=fIaacxisxfd50zpSLfKuC6INdghi7oeeg3kWwdeDwm+KkDULfN5OsLvSHRpfdJGtrOLJwourzg3XsGwIaQS/G+zsj0bBqtwgSb1hzmqlkF2cwOClQimfh319JrqqT/hBDZ+3we37kigACl+t8yi7FglIDleR76932Br1smg5Pqg= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=MDwkYqz4; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=m//CCnF/; arc=fail smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="MDwkYqz4"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="m//CCnF/" Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 58D7NvAC030713; Sat, 13 Sep 2025 08:01:24 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2025-04-25; bh=lyjJrJ/YQp722pDc6ODQWwSCVJTdNTGNdVJVJczIHys=; b= MDwkYqz4hwWHe1zGDrDuLMfn3yVHo8uy5tnp/V+lMdT7+mD9G5wo3oJAu0VhITwb sVYSWpkH3/QUkEzu8AJYwFYOdMafVs1fpBiW3AlD0pd2R0Zi1uOMpVYx0oCZsJ5q IsZ4QqvaI5XbKWEDiCONx4+5VKEkbbALGd+TgOke3/JDYT/LmzdVlIAX7Pjle7zJ 68ovum90RJREJyfOVJCrAJzNLspQbDf8PYsljGFeGpRhDQSwbHHpcDRfeFpAwhyP 3clUrZLuRpL57lZcv59AMmDAhM1m8oCggv6QyfxoUtKQYkbJQy+unyXWkVqZsVP1 YpbyHOESHjr/QYdjtfQ94Q== Received: from iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta02.appoci.oracle.com [147.154.18.20]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 494y72r5fs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 13 Sep 2025 08:01:23 +0000 (GMT) Received: from pps.filterd (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 58D70Z3O015300; Sat, 13 Sep 2025 08:01:22 GMT Received: from bn8pr05cu002.outbound.protection.outlook.com (mail-eastus2azon11011070.outbound.protection.outlook.com [52.101.57.70]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 494y2fp06b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 13 Sep 2025 08:01:22 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=RNcS01+AU7XP6mn2n/rfWh7atB/Md5q4ETc1vOpYwtbFxCUBw9bb5LZb0FqrL/sJpGDlugeK2cr78SMqNFTe3MvxJrjqY9Rte8HOHKzVqCiIkN+fmSkIkv+ayaLPCP+bODNdHvV1eXXx6683RqviXas+cdy35kvjryzi6QhZSvBwC6rJtVe/XnaRDKgmanBRA1Lqs9w0KDJztKQN5BIGT4j4wnfQflRIOrEHYL57OWaHLe0I9BZOTyy1nlvIpcNsQSLEh9nC84etRHpxUByz4IS7a1co23CWTYl5ET0m7y1ePvtZekQMaHspdVu86jkpD2b8GMB95qvW7x6BUoz/EQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=lyjJrJ/YQp722pDc6ODQWwSCVJTdNTGNdVJVJczIHys=; b=XJ29EdD6yZ0/7Oav0DJcGp9jG125ce9mDSl12U0n00Oq29lc92NzID/fwtmUtHYCmLmhwn/WLOR4oi8JAN0e5flkMwuzS4WZGn2ImlwsKxG3YPUSA+b5saP5OK9+WX4ZWqZe8xdh7I9ZJQsNfRhtIOAmPgkaYQE7n6gc3IeS4n1bK0oCoHePFcxVObRzwXOHbF37PPT/PrQJ8O7duYPRNHTZE37xQvix0/K9v3Jx6KYMUmSOu4FQF6PQhgRLqmVxKucZZIku7N72+VzHFWYatFNTixQ9hf1fIRou408gOaPbqsTIisxRXdc3PqIV+3h6Zrdn6MyiEYQb5MMeQ7rPyQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lyjJrJ/YQp722pDc6ODQWwSCVJTdNTGNdVJVJczIHys=; b=m//CCnF/nE/BvqusXLl+1RJnBSPMX7SumXwzlPxoJELFyOZMqOnY5BfdNGLTtIgIbHSk+aXM0b100IVq16HKWjpHAtHFQDFlgpaZU/Q0L28Zc+D0z1V9PjQ36c63wYugmvQU/hklN0ywokb+uHpQxJrJaMYlFsSacsHGJUf2g2M= Received: from SA1PR10MB6365.namprd10.prod.outlook.com (2603:10b6:806:255::12) by SA6PR10MB8013.namprd10.prod.outlook.com (2603:10b6:806:447::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9094.22; Sat, 13 Sep 2025 08:01:20 +0000 Received: from SA1PR10MB6365.namprd10.prod.outlook.com ([fe80::81bb:1fc4:37c7:a515]) by SA1PR10MB6365.namprd10.prod.outlook.com ([fe80::81bb:1fc4:37c7:a515%5]) with mapi id 15.20.9094.021; Sat, 13 Sep 2025 08:01:20 +0000 Message-ID: <8542e09c-f56e-4144-a83a-0a42dad6a1ea@oracle.com> Date: Sat, 13 Sep 2025 01:01:17 -0700 User-Agent: Mozilla Thunderbird Subject: Re: Unaligned access trade-offs for SFrame FRE layout To: Sterling Augustine , Steven Rostedt Cc: Jens Remus , Pavel Labath , Andrii Nakryiko , Josh Poimboeuf , Serhei Makarov , Binutils , "linux-toolchains@vger.kernel.org" References: <20250912151855.3af8c2ab@gandalf.local.home> Content-Language: en-US From: Indu Bhagat In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0073.namprd04.prod.outlook.com (2603:10b6:303:6b::18) To SA1PR10MB6365.namprd10.prod.outlook.com (2603:10b6:806:255::12) Precedence: bulk X-Mailing-List: linux-toolchains@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA1PR10MB6365:EE_|SA6PR10MB8013:EE_ X-MS-Office365-Filtering-Correlation-Id: fc74b0f6-6b1a-457b-e3db-08ddf29bb94d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|366016|10070799003; X-Microsoft-Antispam-Message-Info: =?utf-8?B?Um05RlcrZ2dSQ1A5ZEEweG41TFdqMkhvVmptSm1tY2ZsS01jdjAzWUFrZzkv?= =?utf-8?B?cnd0TWs5Qk5LaWdDeUREZ0FLd0w5TWpNY3ZhSFdEUG5oNEVoWGZrNHJIV3ZJ?= =?utf-8?B?NkszQVNOTzJRWEZQMG04QTN3aVJJYVpIV3NWYmFpMGtlQTRvZXRNamFQcWU5?= =?utf-8?B?N0RWRCs0akFKT2ViOWVTWXhEam5RbmdkRkJuVTdVNWIrdXdWajVvWHVNV0N0?= =?utf-8?B?OHFmeEV1dlN2ZWlxSEg0Z2pYa2FWL3pHR0s0SGZ5VktVQkVzK3lKY3RUV1Ay?= =?utf-8?B?eWJwaGJkdE03ODd6NGxlMUMzbGJjellLa3NZTU9ZSnhwV29QUEordU5rU3J0?= =?utf-8?B?S2E0cXpKWkRINDE4cDBUMTBBK1JzdjRoSFl4K2dXaE96NUE1bGRhYjVBL29q?= =?utf-8?B?aU03bWxLNzFQYjVXb3pBRXpqUGt0dUdveDdhY29NajJqNHcvUlNnbHNiSXdJ?= =?utf-8?B?LzV4cGJZNmdZRDF0ZnZ5UDdzN3ZWNEZKMFc3MnlYQlo2QUtsbWxMTVVnSDVt?= =?utf-8?B?dTlkckxWYWVjTEJJSi9xbjVwdHN1Mm9HajJaYXdTclpBd0pudWEzUzJzTSt6?= =?utf-8?B?b3JVQ1JmSjBQQ3BtK3RQd2pNZVNOcWRRWi8rbloxV3k1NFJoazcxWVpEZURM?= =?utf-8?B?MW1VQ0hEQm1TZ3dwWW5TcGVqQ2lxOGUxU2hVR2VwSlkveXB5VVg1Z2tqYWM2?= =?utf-8?B?LzFZT2xtd2JzZmNGbE1qV0pTamROZEV0OEZtWXRnbFYzNDZWQndUZEdFSmdE?= =?utf-8?B?cjdabkpmWUZDdDdiZ1pxclYrYXpNS2dZdEFvTmZWQlFKU3E5cUVobkJCUW93?= =?utf-8?B?d0dET2hLZHlaVjgwK3ZzNHFldzUxWGltZVZrVWFjMUlCWElUZkVSQnkvOXlx?= =?utf-8?B?Q1BCNnNZRDU0ZzA2Z25mM2szd2EyUkZHY3dadFZYdCthRHhXZ0dMakE0TmJR?= =?utf-8?B?Ti9RQUpnVGh3ekFpSU42QWVZeUNDZEo3ZzcrVThLT1pKUVR4N2NVVHNUSlVG?= =?utf-8?B?OHBoQWIvKzZxRFpyRXhtS3lacnR3eEtzNks0QjlMS3hRZW5KejljVHJteUZx?= =?utf-8?B?TVoveGQ3R2tkZUd4SnJLZkdBTkJOcjhJK3BZTy9uQlkwZi9ZNGd3aHhOaEJp?= =?utf-8?B?RFkydU4zR3l1NWR5YWs0dGY4eTBPb1gxNHRoTmdlanNYZklaZURlMUdIWi80?= =?utf-8?B?MUNaQ3R6aWNWaG1OdGh4OEZyem1oU25tbHpHeEhKRWxlNXIyajFxZEltK08z?= =?utf-8?B?R2Jod0ROY0ZJT3pCMWcxb2R6TnpFQ1pkLytmV1MxMnRnRmNtZ25Fb1drSHh3?= =?utf-8?B?dS9pemdIalBudVI3RVBMWVk2aEd3SllRbTdEOEs3Y3Zidzk4M2NxVGtXeHla?= =?utf-8?B?ckIzQStRRGEzNkozem5pR2s0b2E5V3V3ejBmZThza2VOU1Y5Y3NLcnBnR3gz?= =?utf-8?B?QzZ6SUc2Lys3Wmc1YmRRSGp4NnNFU1ZYL2JQeWdtUU52Lytvc3JjZmxPOFRK?= =?utf-8?B?bDU4YTBTUWVxSHJRbnJJZm80dGhZZ3BQZEpidXZ3MDZtdzRmVGkrWjBiaEZJ?= =?utf-8?B?YzUwNXF6VDNzc3FQTlJsbW15UkQxU1FVbTFxUTJoRHN0VWtPdVJoalNuWU8x?= =?utf-8?B?bnRoQ0syZkF1bjhDNHVJMDRoNWd2SzFTekJ5NnloalBhMGxQSzBacDhFOVB1?= =?utf-8?B?U1MzVnlXSnFTYzZLM3QwRWdwd3Q3akVwS0wzTWYyUnE2L1I1N09sMExTZWY2?= =?utf-8?B?VVRDU1ZhU3JkQ2x5bnFrVlhHQ2JqVS8wc2x1bGkxNldxNEtvbjhOSERKWER6?= =?utf-8?B?KzdNNzl4dDIwaXFoZGhHSU9TV3FPeGdrSnE3VkdYMmFwVkVYcUVqNlJHN2Zy?= =?utf-8?B?UVk1aG8xZm5keFlncW54QW0vWkZnQjd6a2poQnBiTUlWaGc9PQ==?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SA1PR10MB6365.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(376014)(366016)(10070799003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?Y094Ky82dUdHZkxsMmlXSTAxSWF2QzBBZ3NlKzFNcDVHWG5DMjJnbWVtS0ZM?= =?utf-8?B?UGMwc0xHaWlsZTVLU25teHZKcFd5dlVReDBjektHZTNRKzd2MXRNR3FjWXV4?= =?utf-8?B?aVlNR3JSd0dac3NJclVEdWhxcHpGWnlGSTA2ODB0MFRUOXFkV2lLRzNhbUJl?= =?utf-8?B?OXBmSkFxVURER0NQT1lGT2JlaUt6K0dicHQyUzFrTGExYVlhQi9obE5BZ1VK?= =?utf-8?B?Y0xtUzlyeVgvTzhvRlFmVVNmOGRQNU9kbG96VEJrcjV2cHgzMldFZDlCcGs2?= =?utf-8?B?bEhrdTA2ejNJYkZuWGg0R052MTZKUlRYWW55MW5QbjAveXYzRnpIQWtVWDI1?= =?utf-8?B?Zkw0d2ZhbjNxaWk4eWJNblZvYmhCd1U1UHhEYVdlSXFJNXN2eFhFbmRvam5q?= =?utf-8?B?S0RUVjlZWjF4WjVyZFo4dWVPcURnTzUreWFaR0ZuSE9XcE42QzdUN29NZTFk?= =?utf-8?B?ZGlmUXZ0emxnc3U2NFQ4ai9pMFAwTU9LNzlzclhWZUU2cVdsTHVvdnZSbDdi?= =?utf-8?B?bisyUE9tTHRxWmhlQ0x5QktPb2lka0d0UGJtTUZHUDNyYVE3MmZEMUhmZ3Vn?= =?utf-8?B?TDZCMzl3aEY3UUxnTDlkNmJWNjNFc0g4UlpJSHZDbjVncTliditWRTdiemhu?= =?utf-8?B?Q2ZqWGdoLzkxWEZUUlpVYWRlRVN5cmRLY1ZXSlE5WGptRXFhVC82OFNoRkww?= =?utf-8?B?QXZhUmsxNWJjTlZSbWQ0RXEzZkcvZm9KQW1ELzlMem11b3RRdGJzYVFFVXVh?= =?utf-8?B?SHcxYVRwRHdZQWh6Q3B3VWJNTDRaeWxlbnRjd29BQ0dTb21oVFRXU00vbWZq?= =?utf-8?B?VTVkZ0lTL1lOOHJiZFlEYVcyN1pGVW95dk5vRG5aTERIaUZhMzZVWEQ0Smdx?= =?utf-8?B?VXNFdkpWOUVBWmlPdVBvVWdiMWF4QWFaOTQ4WXlORXYvWWVQQ21KZFlQR21o?= =?utf-8?B?QXVraGJHL1FiMDdmT0QyS2hkd0w0c3U1dEloVW0vQkZOOGUwZmVxUzJLd1oz?= =?utf-8?B?UjBRWUtZb1JMSEdDNktoZnZRWTJwWlBQSGQyQUFudnRzRFd3SFlFTnFERDlt?= =?utf-8?B?blArb3VOczVuTTR4ako1OTZGOEcrSkZrVmZSNytxZ2JRaTBJRVY4VytCaDZE?= =?utf-8?B?VXpnWkV1ODVhWTZjeGFqcEpnQkUzeUUzWWV4c1lwZE8wVDlqRU9EbmQ5c0o0?= =?utf-8?B?aXUrTTUwNVZ2VC9od01iTDFmMlgrTkxMZmlvZUxNVTB0M1FsVmc3UXdyNEpl?= =?utf-8?B?ZDU0N0Rna0NaS01YSEE4L0FjaVhoU0JUWmVJcHZaZXFTajBPYmxZR0d5SGUr?= =?utf-8?B?NEU3Rk9mb1IrVm1VdjZwNDE5ZnVqRXhUR2dyOTV5a0IvelVFRnYxZ3ZJSWk5?= =?utf-8?B?UVkxOE1leHBuVnREZlNOM0NpcFR5QUlQbDkvRnZhMy9Xamhta3ZQT0wyVDJa?= =?utf-8?B?Zm96ckdkZmlRU0pKU2ZoaWIrUVJQMGhqbjR2cmxDWkFlczlMazBWT25oNHQz?= =?utf-8?B?QnhOTVJXMUpZRjdaQkhSMXVvejBZNm1ZYjhneTJ6VDlIaXJrVmJhNTRMTklY?= =?utf-8?B?dlkzM2kzcFQyNHQwcW85VFNZditVeGhuUUNEejNVVVVKSGFGWlJPeTlhcW5L?= =?utf-8?B?QXlFc1ZpWVcvK0NpQkY3aGNBU05jd2VwRHlvbEpTNE1yV0xsV1VOR0ttMnNQ?= =?utf-8?B?TDc5RmROd2hpWWhjWXRmc0Q4bms2QUxmMHR5WThYMUtsY3U0bFhKV2hERWZJ?= =?utf-8?B?eldUTFRiQWtjekhGajRLNFZuc25xS2RhMjJKUGtSLzVtc0ZwMTZkRXJxZFcr?= =?utf-8?B?REFpQVg3SUZ6TzJqbGZJcGlxdnpkaldLYzFWbG5UbUx5MmRucEplZEpWalhR?= =?utf-8?B?eDV0S3VIYnZTVkdDb1VlWGJmb0dLYTgreFZpMU5wTkhIbktlV0U0Vk5RRVpN?= =?utf-8?B?Sy9NT2NuQm9rU093WWljc2pVVWRNc2hpdDFORDJyZ1hJV0lKbU9MNUVNYWlv?= =?utf-8?B?Qk9nMnAyNzZzcmp4TWZuaUtibXY2Sk00TjBIMlJ5V2ZaYWFETGtDVlhFMlFI?= =?utf-8?B?NGJRdlRTdm5tNUVqeloxWlF2dXAzTVdVWGtGeEttMk1kRSs4a2g3eE55Q0tn?= =?utf-8?B?RVduUTVkK0NlTU9ES0taZVJtUDVBN3VmNEFMdjRBU1pjKzNEazdrVkRlSERv?= =?utf-8?Q?w3jrgoQJ/U46W6uhNQMl+7k=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: fc74b0f6-6b1a-457b-e3db-08ddf29bb94d X-MS-Exchange-CrossTenant-AuthSource: SA1PR10MB6365.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2025 08:01:20.0605 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Pidmwjx/htd8ZTgNFa26i9j6uk/E+o+ta/UXlq5ISboe40eRsUNugU0nkXCv+8rB8yD5sZ7auXX89YIndGFspA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA6PR10MB8013 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-13_02,2025-09-12_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 mlxscore=0 adultscore=0 bulkscore=0 suspectscore=0 mlxlogscore=978 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2508110000 definitions=main-2509130074 X-Authority-Analysis: v=2.4 cv=F9lXdrhN c=1 sm=1 tr=0 ts=68c524d3 b=1 cx=c_pps a=e1sVV491RgrpLwSTMOnk8w==:117 a=e1sVV491RgrpLwSTMOnk8w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=wKuvFiaSGQ0qltdbU6+NXLB8nM8=:19 a=Ol13hO9ccFRV9qXi2t6ftBPywas=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=GoEa3M9JfhUA:10 a=x9T56CFGkHpD6kBYBWIA:9 a=QEXdDO2ut3YA:10 cc=ntf awl=host:13614 X-Proofpoint-ORIG-GUID: 3YrdVYx65rB6HMdFznA3VWEqOrLErBMq X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTEzMDAxMyBTYWx0ZWRfX3j1EtRfdTLpo FJFijn3C74/Xu8ptpzHSYZqkAMpFRBZsXXNtY4rCLjI8JTUsOrFdIUHRXxMhAyCyq9zPv9wEifX k821LMk7hsMYszQudsjeYLer1v+xNENHgGQvtc6K3N0MjX+Mag9Mj/u9OKITiNJqGtb9j9Wf4rX vFFw2QAaQTfHrSfmxqV2ZwhyHUmD34mOQ9ttuHQ+yQPDXkYceiecyZpq0nAU+U2aQ5NihM+Lm9/ 0siikOuhe5LYa2wpsYqxW6xfPGmaTA2tf2DNOQAWgnFRKKIioVbrudXgMumnd7EfRwjxHtOoxP/ D1JqVAFJYh0OQrXsfsGE7dqbFtnaRgV7Zpx6aSYYyAlY8CrtCjhB48PSqhIJeXcbzCJ6t/dSjnu N/kT2ZQ8GDfIZ7v1/yMQslvRuSyCMg== X-Proofpoint-GUID: 3YrdVYx65rB6HMdFznA3VWEqOrLErBMq On 9/12/25 1:17 PM, Sterling Augustine wrote: > Agreed with the others that optimizing for size is preferred, but that > it would be very nice to know just how much performance we are talking > about. > > I wonder if a partial solution would be enough to alleviate the concerns. > > Some of the unaligned accesses can be fixed without a change to the > specification at all. An implementation could align just the first > sframe_row_entry for every function. That first entry is accessed every > time a function is unwound, so this idea reduces the number of unaligned > accesses by about one per frame. > Yes, I too thought about that. And correct, that should be easily doable. > Not sure what the size penalty would be, but probably quite a bit less > than 22%. Much less than 22%. I would expect it to be quite low. A few bytes per FDE essentially.