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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?rgJs0rMZzTsRHET2xstx0An5jrYwaDBKhsEmMooeo5CSGz6+gTCbSBEb96f/?= =?us-ascii?Q?C7fqnVU2C4M4q9+OHnt1lklPwepLpicjT6IZ26EdNq2zY4TPr1lKb8yugJn9?= =?us-ascii?Q?x4WGtsp+/5M1MR+/ZRWJ6RXR0u2kVqOBa3YVVRhMm81t+Ojx+aFN7bdkWfVG?= =?us-ascii?Q?UaZJuFjvZmqA1DYvurlV8om/L+SW6wxpjaCMH+VrgVTlWTWVmDcOm2XSkWY+?= =?us-ascii?Q?lx1ReqbGeYs3rrqx1zAZDUSzy72kxWwcFjkjIpgR+bdjH4eazPE5rWRG/PAC?= =?us-ascii?Q?ez4s/YhcJLSqU6/JLicoo07kIsUovzNhYC90wv+m01vSAUQHZkW1Ucw0O+sb?= =?us-ascii?Q?/qrgjntMKHQvpbBavLpwYTTi+p6j/DukVulihkWhN8PaAWUKmrRUW98w3VkX?= =?us-ascii?Q?2xc+TCuLUUOQmQTSDCJGtMQD9IKVhYh1wKwXYpsH1H/diOWRU6IWBbm+BzSS?= =?us-ascii?Q?3+3XURSaeN9MdpnP2uHbUc6vnugRXzCdmeK1RASKJEP6XS42NFzK3HhbdCcM?= =?us-ascii?Q?Pqq2pJyi3TeyvDgsFdjBoehRFnXXUBBf2KHcDpTJku1MIQ/8ayAfwAgUkuv/?= =?us-ascii?Q?IhuBRE0PJ7dZKdYlkUlMXOI2NI7quFvLQfc401ytYy3Dhmo0ZJSjJLjT4ysC?= =?us-ascii?Q?ujhodkpe01ahcuhTELExgBFhqBOiOD0HfrFVo2zG1cQ6oUR0wKvqAH8oHRpg?= =?us-ascii?Q?7VgLiX/fSppq96zYI9iMcKo/9WX5/KR1FGetO4VpMRKzQ+FLE+/AsqIINWdY?= =?us-ascii?Q?8ZeH66d9LC5hxjNwKV6v20NjNk4kR7oM/YL7/N2IPigid4BQ23kyAgE8xT8R?= =?us-ascii?Q?hQqB3cLe/THE9rLpnbMiHVNs8VXMMteGyY6PG2cxz06groc0bDDYyRggr/rj?= =?us-ascii?Q?rP43wv5MOw0k0iHsMwAHmnvG5/S4VtDJAcIEZiKFt+1c+Qid7GpvMqQYqPqO?= =?us-ascii?Q?D5tBCu//NIE57E530s/38Zb1UvFehJgyyWWDsLd5yH0Lr+bUu79sygBITENS?= =?us-ascii?Q?XmcunKALRpmBVCUrSwkb/akD1SAdnfvM8Y+DiCYwt5c2kW53zzoGRLInqRKW?= =?us-ascii?Q?bCgZ5bTE2BVgKZOGS9talgN5Ajwn97xugJhfA0YHPFxQjEW/ASAt2AnMkbQe?= =?us-ascii?Q?U6vLWSMNycMTVzijRCo1o5B2HWyrTwitfWixbCnma3lUSxj/gjjBhtf8uwMA?= =?us-ascii?Q?PgcyW8YNkQtoh7wSjzPCvxD2ANMFRY0yIifmo3Q82mZzzESqEMn6LbmrkYvi?= =?us-ascii?Q?Ng6ZAveZgQtjmf+ZwRvWbIeiuPwx1yjK/xoV+7eQxMDd6ABKGgp31R0O9C0x?= =?us-ascii?Q?nuu5WHDUf+4wLQjR0X6joQxNx+ANk1MsKtnjzTKmbHzxI/BWSKUBbPnxaTD5?= =?us-ascii?Q?E2RHPzQIUniTcPE/5ZBn8yadhwZFjyDucz41ai3HSu0I/wH60Q1/W7rbtX72?= =?us-ascii?Q?I4cg715WG1g2nUaW12IKtulk1HycIL+g2GndiT8hAda6KYioajvVcVAMHfrW?= =?us-ascii?Q?cp35iBA9Xs2ODsOeDNYJiO1pcO7FBcJKCpDcu82S/++S1NVdfhBjvi0K2b3f?= =?us-ascii?Q?CpcGf4fMeOAoTRQVrWOwTDOOB+adlG7+2aUbBfWoenZmy9rw663n/NDropsn?= =?us-ascii?Q?d0jmcGrP4oOTNuP67HJOwgU=3D?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: eeb66f19-6594-4fdb-e65c-08d9da8c0115 X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5600.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jan 2022 14:08:29.9484 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: suWjtdit1s5HG7fXdmeFyAWOFCKdS+gwDNGlDsLNz9gBpltXCJL6HRE/CHQKZ6mG/zuJo+TFmsSUdJE4pbsuGg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4173 On 18.01.2022 11:20, Roger Pau Monn=C3=A9 wrote: > On Mon, Sep 06, 2021 at 03:01:12PM +0200, Jan Beulich wrote: >> From: Artem Bityutskiy >> >> Change IceLake Xeon C6 latency from 128 us to 170 us. The latency >> was measured with the "wult" tool and corresponds to the 99.99th >> percentile when measuring with the "nic" method. Note, the 128 us >> figure correspond to the median latency, but in intel_idle we use >> the "worst case" latency figure instead. >> >> C6 target residency was increased from 384 us to 600 us, which may >> result in less C6 residency in some workloads. This value was tested >> and compared to values 384, and 1000. Value 600 is a reasonable >> tradeoff between power and performance. >> >> Signed-off-by: Artem Bityutskiy >> Acked-by: Zhang Rui >> Signed-off-by: Rafael J. Wysocki >> [Linux commit: d484b8bfc6fa71a088e4ac85d9ce11aa0385867e] >> Signed-off-by: Jan Beulich >=20 > Acked-by: Roger Pau Monn=C3=A9 Thanks. > AFAICT those values are all from measurements, and not in any manual > or specification? That's my understanding of the description, yes. Jan