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Tue, 2 Dec 2025 16:11:23 +0000 Message-ID: <19a6a5ec-9039-4735-a260-613cd63a9791@intel.com> Date: Tue, 2 Dec 2025 08:11:21 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 12/32] x86,fs/resctrl: Support binary fixed point event counters To: Tony Luck , Fenghua Yu , "Maciej Wieczor-Retman" , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin , Chen Yu CC: , , References: <20251124185412.24155-1-tony.luck@intel.com> <20251124185412.24155-13-tony.luck@intel.com> From: Reinette Chatre Content-Language: en-US In-Reply-To: <20251124185412.24155-13-tony.luck@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR03CA0302.namprd03.prod.outlook.com (2603:10b6:303:dd::7) To SJ2PR11MB7573.namprd11.prod.outlook.com (2603:10b6:a03:4d2::10) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB7573:EE_|MN2PR11MB4759:EE_ X-MS-Office365-Filtering-Correlation-Id: 5ac5181b-5710-4c21-d39c-08de31bd7030 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|376014; 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The final paragraph of changelog seems to actually form part of above, and did so in v13. This new split seems unnecessary and confusing to me. > > Display fixed point values with values rounded to ceil(binary_bits * log10(2)) > decimal places. Special case for zero binary bits to print "{value}.0". > > Only allow architecture to use floating point format on events that the file > system has marked with mon_evt::is_floating_point. Considering some questions surrounding this name this could append something like: "... which reflects the contract with user space on how the event values are displayed." > > Signed-off-by: Tony Luck > Reviewed-by: Reinette Chatre > --- Reinette