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Tue, 18 Nov 2025 02:01:15 -0800 (PST) X-Google-Smtp-Source: AGHT+IFVA/lNLmw3J0tHCSiCsRvdMTpIOxh7YYGvZrhT/JyUSpkyMuSr9HMWuiLp7hZ/9wLR4SOPcA== X-Received: by 2002:a05:6000:402b:b0:42b:3da6:6d32 with SMTP id ffacd0b85a97d-42b5933b5d5mr13920621f8f.23.1763460075100; Tue, 18 Nov 2025 02:01:15 -0800 (PST) Received: from gmonaco-thinkpadt14gen3.rmtit.csb ([195.174.134.44]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-42b53e84b12sm32545038f8f.15.2025.11.18.02.01.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Nov 2025 02:01:14 -0800 (PST) Message-ID: <1d220f45133cf35bdb1e27877ad91d4ddbaa4146.camel@redhat.com> Subject: Re: [PATCH v15 0/7] timers: Exclude isolated cpus from timer migration From: Gabriele Monaco To: Frederic Weisbecker Cc: linux-kernel@vger.kernel.org, Anna-Maria Behnsen , Thomas Gleixner , Waiman Long Date: Tue, 18 Nov 2025 11:01:13 +0100 In-Reply-To: References: <20251113083324.33490-1-gmonaco@redhat.com> Autocrypt: addr=gmonaco@redhat.com; prefer-encrypt=mutual; keydata=mDMEZuK5YxYJKwYBBAHaRw8BAQdAmJ3dM9Sz6/Hodu33Qrf8QH2bNeNbOikqYtxWFLVm0 1a0JEdhYnJpZWxlIE1vbmFjbyA8Z21vbmFjb0BrZXJuZWwub3JnPoiZBBMWCgBBFiEEysoR+AuB3R Zwp6j270psSVh4TfIFAmjKX2MCGwMFCQWjmoAFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4AACgk Q70psSVh4TfIQuAD+JulczTN6l7oJjyroySU55Fbjdvo52xiYYlMjPG7dCTsBAMFI7dSL5zg98I+8 cXY1J7kyNsY6/dcipqBM4RMaxXsOtCRHYWJyaWVsZSBNb25hY28gPGdtb25hY29AcmVkaGF0LmNvb T6InAQTFgoARAIbAwUJBaOagAULCQgHAgIiAgYVCgkICwIEFgIDAQIeBwIXgBYhBMrKEfgLgd0WcK eo9u9KbElYeE3yBQJoymCyAhkBAAoJEO9KbElYeE3yjX4BAJ/ETNnlHn8OjZPT77xGmal9kbT1bC1 7DfrYVISWV2Y1AP9HdAMhWNAvtCtN2S1beYjNybuK6IzWYcFfeOV+OBWRDQ== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.1 (3.58.1-1.fc43) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2025-11-13 at 14:12 +0100, Frederic Weisbecker wrote: > Le Thu, Nov 13, 2025 at 09:33:17AM +0100, Gabriele Monaco a =C3=A9crit : > > The timer migration mechanism allows active CPUs to pull timers from > > idle ones to improve the overall idle time. This is however undesired > > when CPU intensive workloads run on isolated cores, as the algorithm > > would move the timers from housekeeping to isolated cores, negatively > > affecting the isolation. >=20 > Looks good to me now, thanks! Thank you for all the comments! Will this series make it for this merge win= dow? Thanks, Gabriele