From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from YQZPR01CU011.outbound.protection.outlook.com (mail-canadaeastazon11020127.outbound.protection.outlook.com [52.101.191.127]) (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 AD28F3081AB; Fri, 31 Oct 2025 19:36:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.191.127 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761939376; cv=fail; b=m24X/9r/hTT6xQaqlEaAhrx7PWAWQn083eRgJPZvLeyvC+ABchaIWYGhvfClzYEb15zVkZlRKejaf32+ufVyuHi9VYVSV+oGLTFo8LYuqGuXJ5lVeW6Nfh3d2sNrxs4d4lBKbT1VKGnQNnPX/85MFbH6UDte58hsyKuQPH6Tq30= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761939376; c=relaxed/simple; bh=okuYRPbdf73l1ab3hLs3VVm1+ixlKogNq6sWRpOHBno=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=ZBEOs750i2vcsiyvOxpvJfWbBGzxZHhTdM8t9gdFFgsmkX8Xi4wRBA9jeASDXEyuBTEJvDW1VxWTYVCLIkgCdh0l79WwVqsDnq4W9WxMWW9V9nqsze3kUKEVYDKQWn/2Ze0eOoIwqPRD93/akaJST08CuImrrs0TMHh6AM/sdro= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=efficios.com; spf=pass smtp.mailfrom=efficios.com; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b=m9IfdX35; arc=fail smtp.client-ip=52.101.191.127 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=efficios.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=efficios.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b="m9IfdX35" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=cvLhsNlA8vMdU5de7ydZcQ+/t+wb49AMmfJMjujBr1KLtWdtonDtmYod1HN7QqcJwFJMLTtW2wSKDnzHO6geoayjHuTHODoWBmo3BaaeRCQsxVsGtNsIGeIywW0FrwCWcrJR0cjahBfHb1+za8JnPCm6eIPRYiXVSaX1zGzfZW/GPcWpfp6McChHfg+QbIBomBvZY6QDPAwSNXT5f8KbaLaXFrpNflxnl+z6SzGM6YG7C94q9d22CYkkDkZIbl9aTO9v7lYUpJlthlZl4VDsZ5936xfF39PbNySAJexyat0D26cKFtAvwjcLsC2JXc16VbJ167Kcl7Khu+/Ccico2g== 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=i7J+MNiVKNSuUMqrNI7lJipGgMO2Lz1613QjskwNQaY=; b=IRK8QRoCmYQqKdyozUprMQUmYctRKnjSshii4V8lOBCS2iFSXh13505Ux1Urh5uH4OJ7FScaw56E4gh7sjqNQdkv64PIgz4sTCLY5caS1pVhC5kicjt3CO88fMgiYeAnpNYHi625wWvQg1doX9f7oRWlbzRA4/Uv9AqteticJlzUDS9+zv/RoWmZyiqV2Z1cZsoMn9/e/CvBYprifCI0UGRn3Tb/ftoAWINGQmsFG1zAeDZrid0meVYaUO6hMy0uUWsueIM8P5AlLJq7pEHCbrTFdojwXuWd7XkhGMQ3ROKntA6ALW91EYXs61aVELiLR6QeRmbgtPkwEO7LwgXI4w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=efficios.com; dmarc=pass action=none header.from=efficios.com; dkim=pass header.d=efficios.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=efficios.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=i7J+MNiVKNSuUMqrNI7lJipGgMO2Lz1613QjskwNQaY=; b=m9IfdX35Kpdszp+b4dJ9sbvxdvRLwF+DfR+gQoNI+EFDKsmS7+ADOZT4gMD4r6/cIxfOWEmBEOMGQWngJz4X7XklBqAWaF9+srLkfPxrzI9f1TEpfSiLLRnqo4CVbXBHlmF09gkMSu4dNNwttyIvxhiAXW/lBF1diXPdkqmFz8s43RNSJz7hrShaYkHsH/YvzahuS3XJ6Yi9HofAGiDt49JWEIWX2lhsnjB3AYx9LPIyLPXZkDwHOwWf3jtqvcvduZJYyYHnZLQ+VRmHgPfot5uOO27b0rK36PJ+5Pb0L/buonpl2pAAu1z5IvX7TQyi2kZPPOKamSOB/viNsTUnAw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=efficios.com; Received: from YT2PR01MB9175.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:be::5) by YQBPR01MB10799.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c01:75::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9275.15; Fri, 31 Oct 2025 19:36:11 +0000 Received: from YT2PR01MB9175.CANPRD01.PROD.OUTLOOK.COM ([fe80::50f1:2e3f:a5dd:5b4]) by YT2PR01MB9175.CANPRD01.PROD.OUTLOOK.COM ([fe80::50f1:2e3f:a5dd:5b4%2]) with mapi id 15.20.9275.013; Fri, 31 Oct 2025 19:36:11 +0000 Message-ID: <38c04848-7a99-41d4-9068-e4471da16718@efficios.com> Date: Fri, 31 Oct 2025 15:36:10 -0400 User-Agent: Mozilla Thunderbird Subject: Re: [patch V3 04/12] rseq: Add statistics for time slice extensions To: Thomas Gleixner , LKML Cc: Peter Zijlstra , "Paul E. McKenney" , Boqun Feng , Jonathan Corbet , Prakash Sangappa , Madadi Vineeth Reddy , K Prateek Nayak , Steven Rostedt , Sebastian Andrzej Siewior , Arnd Bergmann , linux-arch@vger.kernel.org References: <20251029125514.496134233@linutronix.de> <20251029130403.670613644@linutronix.de> From: Mathieu Desnoyers Content-Language: en-US In-Reply-To: <20251029130403.670613644@linutronix.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: YT4PR01CA0273.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:109::21) To YT2PR01MB9175.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:be::5) Precedence: bulk X-Mailing-List: linux-arch@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: YT2PR01MB9175:EE_|YQBPR01MB10799:EE_ X-MS-Office365-Filtering-Correlation-Id: 05c16e77-3ff9-4d2e-c1b1-08de18b4bf0d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|366016; X-Microsoft-Antispam-Message-Info: =?utf-8?B?ZWRQMFIwMTR3RmZtVm5oakJUV3lnTEFVQTZLRmtObXBKLzhnTGZlRTdrNnhi?= =?utf-8?B?d0NoNWJiUFVzMzdiWDlFeG50cXROUGt4SnltMWIwK0U2NGNudEpTcmx3by93?= =?utf-8?B?VVBxYTNpYkl0WTBBZnE2VlFucFRjbkc5REZlOWdHbXRjQjZBQWUxOUVyQVJR?= =?utf-8?B?L2czV2szRnF1dFdrcjVyeWpzYUovOEtUWGJxdXd3a2t5SDhEVVVScnBCZUpj?= =?utf-8?B?TjBRRThaK0l0YVM4N292SEo4cXZQeXF5bzVPQW1VWXc4cDVJV3VUNkRxdG1r?= =?utf-8?B?QzVTN0dBYmJ2STMxbFhaZzNsS2Mxb2hUTXBTNUxadzFhWGJLYXlWVDlLMWVN?= =?utf-8?B?MDE0cHZudk5NRlFxWjVQSW14VVdhQzBwVVB3NlF6UU1pSFdvbVl0a1hycm5k?= =?utf-8?B?Vkt4QUV5MG8vSDlDTVdidEdsQnkxVWREclVXK1BieE1tU3dLTVZ2VGNqcDVo?= =?utf-8?B?cHRLd0NhR3JrNG9NSTh4Z3hYVTV0ZnNQUUtHdURSSzNpSDhTQWJxcnpLZWJw?= =?utf-8?B?UFRRNXBCaHpNSmtucTFvZTdiRUZ6UElSVHFjWUFNR3IveUM3b2Q1VEJ3WTBX?= =?utf-8?B?RGpoTFdGc0FHWCtHYlcwZEdBT0pQSWR0OUVzMENzcFNCNnRxR25kMzlkTjFa?= =?utf-8?B?WGttNnhsZUl3Mml3R21ONWl6M2pvUEtyRmkxZTZocmpYZnd6blJxV1hHV3lB?= =?utf-8?B?UjFUVkFaeWh0OHhtcVhKTDZsMTk3cDZ1RGM0TkR5ejJwVjllTlNBWExOUXF6?= =?utf-8?B?d0dBWjBjT1A4eHF5QWo4NjM3aG9jRDBkdzVJbHhPYmQvMkg0RmFpbFdUZ1Ex?= =?utf-8?B?S2RhL3Y0dk94TldHbW9HUGNzZW55ME9RLy9IMDkvRzQrcU15NndTUnhOVklF?= =?utf-8?B?N2xIdENGVkQxN3Fvb1RNNElRUGZPbUhRc3RqTkFMcXVtRURjSStxdncwSzhH?= =?utf-8?B?Z21uNEVydW9IbVp4a1NWRUljRFM4V1p3dTg1Nm5ycEQ3OVFZaGJnbmh6aEtv?= =?utf-8?B?WVNGT2tUdVVXOWFzNi9rUW9rbzdndys4dVBzMUJuTDg4TFVCdklWV2IrK1V6?= =?utf-8?B?UnBTNmRHalliVmVUZkVhVFZFMDlKNWJBNVpreTJ1b3NIcTRveFFXbnVncE1J?= =?utf-8?B?b0NNUlNjdFQwV2NsYWFBN0dRM0hhRko4MnlvNzBZSlhWeThPTHdkV1BOVnNF?= =?utf-8?B?VW9OOHNZMzZtWWF1SXh2U0w1NzdRSEVVeU9SYUhzQk9CZ2x5THdEdjd1dWQ5?= =?utf-8?B?WmFLdDN1NGZXeWJpWTlqckd1WUc2aUtYakhxQjFxcDIwcHdoaUZyZEg1SmZ2?= =?utf-8?B?cEh2L0RaazZoMkdoWm1EbDB2OWVmeHQ4Z29PeE4xTktESFlDRVdkMHlJSWxG?= =?utf-8?B?RGVQdmwrenl1a3NGNmVyVXE0endTYkFCcVpWdTU4R1ZNK2dxM3JoUU9jMXYy?= =?utf-8?B?NGxQUW81d3MyRDJhR3NwNlVTVEtYZkpmOVVDZkRKOStUUDFhU1Q1aHJsbFd1?= =?utf-8?B?bzFFNG42Z3R2SmpzZklHeHA0U1VVaVlkRUE1MUo0L2d3cHAxQ2hXQlJUTlZI?= =?utf-8?B?S0dZQXlLeUg2RFd6RklLbTZZTUE4ampJbU1seThFNjFrUUNMQndvS1dnU2ZW?= =?utf-8?B?aGdZTXVTM2g1SEx4RDVPcENvVlpHQkhSb0ZoR2VKd0JIdGY1dmQ1aFBMNEp4?= =?utf-8?B?NDF1dUlIbndZcWZ0U2U0MUFxcWVpT3BGblhBWG5GdzJSRHdpQkx4K2V4ajIv?= =?utf-8?B?dXNMY0U3b1liMk9lWjhZWkJCeHBEUUpzKzg4S2J4STg3VGlZNmV6RjZMV0Rz?= =?utf-8?B?ZkhmV2cwcE9ZMi9QRG9RS3l1cEpYcDR1NTI0QjFuSEpUVlk2WXVOdW94UUhs?= =?utf-8?B?LzlscWtIVzc1VnFBUExKNWY4a1ROL3djL2QwaitNY1VaOGc9PQ==?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:YT2PR01MB9175.CANPRD01.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(1800799024)(366016);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NXQwYkF4N2NwSXFUcE92alFqYnE4R1J5d1hvVVEwa3E0MjZmSmdhSFFwdWQ3?= =?utf-8?B?YVZubUkvUXFUVlFuVXZDSy92WFIxbXFud3F1MVh3aXgwaDJMUDlVbzExUncw?= =?utf-8?B?Q2o2Z1pWRUFLeVp4Z2IzZXVSb3E2YVM0cGNKMUE1V0J2Y1FEWnZVd3RzQnc1?= =?utf-8?B?Rk40UGxtVDY3c1ZENXNISE0zeWRnc05pT1B2Z1IzZWpuSU8rcU00L203M09O?= =?utf-8?B?dDlnWTNublFxTUMydkdPaVo1Nkh0TmlPTW8xYllCL0lPbWxEUFdpUWd1NUF2?= =?utf-8?B?anJlUmxOT3hScjY1bkQ5NVc5YWVvdGgrN2xSZU0ybWlyeHZndlo3a1NocFFB?= =?utf-8?B?TWpncE50SjBzd3BWQTVKcllmbFhONzI3YW5qcXUyZDFjR2tLMVM5ZTZHcCtD?= =?utf-8?B?cjNWU0UxSlVjcXNBbll6WHh6c0tBTVd3MjFmZlVVcmIrSmpQVVdHYTAxWTMz?= =?utf-8?B?NDBqdFBuVFNLNm84WmU0ZDBldDZaYk5KTVl2TFdsSnJVdW83RitSTFBrM1JN?= =?utf-8?B?UUVwdVQ0c3RvRVpKZGpySTBLeEptRHZ2RUFpRDJ5N3NqMEtIU0Q4dnoxeW9G?= =?utf-8?B?UitGZWMvNFBLMFlyUURqL3Z1ZjUydmZoVXdZOE10cnppZ3N6WEhMSkdEWHFn?= =?utf-8?B?L1gzMzYremM5RFl6ZG9GTGZDRXZTK1cwK013N25Pd1Q2RXp4OGdXNUM5Ymsz?= =?utf-8?B?UHdhd1BUa085dUJYSDF2dFZ5OHRNVGh2UldUMlFIblQ1MlkraHBGOCtmZXg3?= =?utf-8?B?NkVZQndZWTdxenF1aUVCMFVBalZBcW9tQjlwWTVObDVFeHhSeGRqcTd5YVhL?= =?utf-8?B?eHhHYzV4eVlFVlJVcmFJRHBLVGx4WVVUUXNJSDc2dm5kMFo2TTQzVmNQUEpM?= =?utf-8?B?cTJ2OG4wcTFHcWxzbDlzNWQrWWhYZkZpZEszZHZxbHVWMFFpSUtPSDFUWUhN?= =?utf-8?B?Y1I5RmU0L1pRVUVyUzBDMUdFZzZyejJ3MEM3TEtTMGNuY2pJMWI1c1R6L1Fv?= =?utf-8?B?SmVWNFRQTkNwWkZGVGdlRW5sT2Z0WEVIMU5TSjAzbkRYYWN1TitwRDhvZlJE?= =?utf-8?B?TlZZZkxKZjk5RkdFZVB3eDJuVTRyd2FwRVg1NEVFSE9YZnRQK1NyRTVDcHdF?= =?utf-8?B?OSt1dExDR2s0Q3NvYVFvbWVSbE1tbm9nYmU5UndhR3NKMTJUUzJZTU5ZT3R0?= =?utf-8?B?T042OVhTTWtXdGNBUnorbHc3N1pUSFBRb2dYU2xyZEo2Mm8yY2lvK0YxcXps?= =?utf-8?B?elJvUk0yK3FKVkJZZk1qV2FsTW1mbDU3TEZ2SmIvWlBXYlVRa1RsYmh4c0NW?= =?utf-8?B?amFkcjZiWGRJL2pRQis0V2hZVmlNQm1ieGpnZ2dTSFR6T0NZOWl3c2NGTnlB?= =?utf-8?B?aW1sZlR2NERoMGZudHhUNnEwQ0tnZU1VUWtxZld4aGY0VmFmVDJ3eitXcTBw?= =?utf-8?B?bGlnV1hzSk5CVUlsb0U4cEswUEZ4enZ4V0M4VEpkOGFhbkNEaG43MzEyN2ZU?= =?utf-8?B?R3VHbUpYYmxhTW9uWUtKOFFXWFhqQzRpYmJ2eUU3L0ZxRi9ONDBHeVRtckJu?= =?utf-8?B?aWdlVXN4RlUybHZPSU93MHhLVjY4M0xDcEpOc2xIRjBHUVluc2U4aGg5N2Na?= =?utf-8?B?N25WbE9yS2NKL0prbUNJYnpIUm9YOUIxN0lKRkp2S1BVcWcrVTJrN2lUMVFM?= =?utf-8?B?bW9Yc0k1RG1IRzUwU1J6aG8zTmRUZy9lcyt6bUR0V0kybHl3REJLVHpubHRP?= =?utf-8?B?TE55enU4ZlY0RUdCOHdoMW5mbnU1WDJTUUhWYW9sdSs4dWwydTV4WVNQYzIr?= =?utf-8?B?MXhURVVneCs3c1BDVERzdlhRZDBNS3RpUzV1VVVSWkNjYTVBVTUvU2dwSDhm?= =?utf-8?B?Ni9WL05tMEtTMkJRWjhlTTNSbVZwYjNwTHVvaGsrUGMwa1RPOEJYdnFBanRB?= =?utf-8?B?bTBpVFhpeVh4ZDFlblMzbkV6OWhVVmZhZ0V3N1RTdmhPenJuQi83akJPKzY1?= =?utf-8?B?dzRxWnNiVnBuR1ZEUFhja1dVNnVkQktzL1FvdlAvVE9oNWRGT2t4MHRCZXBi?= =?utf-8?B?MjlyOEgvdzgvQnh3d3BxU3pCSXEvaHRzTXlzcG9SWVNVZmVnQm9pZHJvT2l3?= =?utf-8?B?cGZpLzNYbHJxVE5WaTcxdDJjUkFmNzJiYTBJZTdTNTljOFpnaXZocEljbGpQ?= =?utf-8?Q?TcjE7vlcfdvBhdrJbEhAm7o=3D?= X-OriginatorOrg: efficios.com X-MS-Exchange-CrossTenant-Network-Message-Id: 05c16e77-3ff9-4d2e-c1b1-08de18b4bf0d X-MS-Exchange-CrossTenant-AuthSource: YT2PR01MB9175.CANPRD01.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Oct 2025 19:36:11.3128 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4f278736-4ab6-415c-957e-1f55336bd31e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: nz8Kds+PRmDYgSLxk7AJwhWtuQE88qZPklZYwYv59Jwp3dmBJ6x3AeOrbrKGBH0uQfhFAMSi8dEMkIaI+jXAj1SiO66R0VSy6vd8UoWouXk= X-MS-Exchange-Transport-CrossTenantHeadersStamped: YQBPR01MB10799 On 2025-10-29 09:22, Thomas Gleixner wrote: > Extend the quick statistics with time slice specific fields. Reviewed-by: Mathieu Desnoyers -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com