From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 52BD526AD0 for ; Mon, 18 Nov 2024 12:49:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731934181; cv=none; b=FIfhrsytG1XYwO95Fxw8Tlzjpw/g//HLP6HPFS0E6VWMM0ny8JI5ECJcx/7hjvaPIliq67fnDAP3O+ponaY3r3nNynCpgqDQJPdFZ1BuEAdFCyvqxIl2+qlgyn/FYXTpGbsWxGx4YApXb95U4dON+NkHCNjpNdfUZoGir13oWvE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731934181; c=relaxed/simple; bh=Lo7SJ31GOrsY08PYIGHe2YaEwIko41JUlk19Vy0UzU4=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=CSRzUdr9PxerMkpdKxP+7w4a3lBOB3PpwcE56lA7cJATlmBkoEVYqRtWPhwgbNMbHSAZKmBwqeiepSZXCZg/0e0ef0y3DQDwhz1OgvF9aqOvfG2GVLnS13ZCOKWeQIJEZc9Yv2ZTZX4ra3J73lZ7Ss/mTlgpZ5gDMBeofmBDnns= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 312BA1682; Mon, 18 Nov 2024 04:50:07 -0800 (PST) Received: from [10.1.31.25] (e127648.arm.com [10.1.31.25]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B5DB03F5A1; Mon, 18 Nov 2024 04:49:35 -0800 (PST) Message-ID: Date: Mon, 18 Nov 2024 12:49:21 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RESEND][PATCHv2] cpufreq/schedutil: Only bind threads if needed From: Christian Loehle To: Peter Zijlstra , "linux-kernel@vger.kernel.org" Cc: Ingo Molnar , Dietmar Eggemann , Juri Lelli , Vincent Guittot , Valentin Schneider , "Rafael J. Wysocki" , Viresh Kumar References: <633c2972-1171-4caa-8825-758d094c0ce9@arm.com> Content-Language: en-US In-Reply-To: <633c2972-1171-4caa-8825-758d094c0ce9@arm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 11/6/24 14:55, Christian Loehle wrote: > Remove the unconditional binding of sugov kthreads to the affected CPUs > if the cpufreq driver indicates that updates can happen from any CPU. > This allows userspace to set affinities to either save power (waking up > bigger CPUs on HMP can be expensive) or increasing performance (by > letting the utilized CPUs run without preemption of the sugov kthread). > > Signed-off-by: Christian Loehle > Acked-by: Viresh Kumar > Acked-by: Vincent Guittot > Acked-by: Rafael J. Wysocki > Acked-by: Juri Lelli > --- Gentle ping on this. Regards, Christian