From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 01113205AA1 for ; Thu, 23 Oct 2025 02:24:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761186253; cv=none; b=AAxiPFeOe07kVEbqQEWL8MgVCIk54YPdO020+Nnvn5nukP4LhF3OFy2orr36eXIYwLduuCF4iGJMBf4/Z9y4HFXK5p/7cEUNw8uo9RH7Jml3HgvKwZsnlwH1sCMyYv7Z7lxUVh8Sm4pevEuRUvH7GZh3WWCISG0TrtaD/UYBa+s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761186253; c=relaxed/simple; bh=SVr30Gy0yl93FUQ9VNPO4a87bKc+DSCWdirStpeVB+M=; h=From:To:Cc:References:In-Reply-To:Subject:Date:Message-ID: MIME-Version:Content-Type; b=r8es6UdM6Fg0wMkekRAs9C3yVO6kBCXzE5fJXdcxOPbLwU6XtTkXpWwQOTL2kW0tpXfAaO/91PF0FSv3vZ8qyncqG8NucbAFvtXvWLTrauj0jD5F1kHEDZ4K1HWGNIk2+A7lo6+EE1NSTyJWVjzt96WLkvHlR/mXi8NAYlSDWxU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=telus.net; spf=pass smtp.mailfrom=telus.net; dkim=pass (2048-bit key) header.d=telus.net header.i=@telus.net header.b=eBG5n+nH; arc=none smtp.client-ip=209.85.210.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=telus.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=telus.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=telus.net header.i=@telus.net header.b="eBG5n+nH" Received: by mail-pf1-f180.google.com with SMTP id d2e1a72fcca58-79af647cef2so275070b3a.3 for ; Wed, 22 Oct 2025 19:24:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telus.net; s=google; t=1761186250; x=1761791050; darn=vger.kernel.org; h=thread-index:content-language:content-transfer-encoding :mime-version:message-id:date:subject:in-reply-to:references:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=hPrl+g8MWZLVjr5+X7xKR8IPIJl3i65GUuqXDZ4/RcU=; b=eBG5n+nH9zJ95Fzn+R7fnOhg9otrS9AMVa1A/fHAUzn23pY1VozDCsXiKOZkx9EGnq ZoiiijFynTJX5wEoaP/2pIFr8WN+VYve8GE709kK8X+REdW69dbyX32Qi2jo2nz9Q1Ns +4drH3zC74JcgAuemPQTILk0cxNxuWbjGUK7cuahIeh28G/edeiW5mb8DPr1MQ2VOHOL 0HHfuckhu3MOoF8teCW1nKnfWroEOnxfCrpeA2l84qJL4P5cDK/3OyYXMSwaePh9Vq9F 8iPLzttBU8HowRjQQcd8GiuV6LddHTqIobrs1dqqyn36itVfEBxBvb6IHDfj8Fy1Zgso qSsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761186250; x=1761791050; h=thread-index:content-language:content-transfer-encoding :mime-version:message-id:date:subject:in-reply-to:references:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=hPrl+g8MWZLVjr5+X7xKR8IPIJl3i65GUuqXDZ4/RcU=; b=BqczniFpb60mUxwVJ/GPdimsifNSmLp1fbCc0Kk1VueQDNu+in9V9yImTAhHrJYoS9 x73icCsq26dfvGuLhQDyz4txQDjvLxtVNccLPsT6fD3HbW7C6gO7k/UMTLCN0eAvAwtQ zSHGYGbCFkLhG7Ip1JPxTw5igvQ32SmOAXVcXEcV79xBtlLJUcdaBvyUvABUbhwdy4wD fWTYz9dYiAk6yh6e5iO2pA0W3r3/HRMOPoS3oMvqnuj2qnnUtK9yNsyCSnKWSW3JDT2L 5zT/ZIN8FaGsF7cIutIeGCRNdCOIUsKND2NLSEovRKGmZMc3L6yprA4SMHCybmfRw5iU 1eWA== X-Forwarded-Encrypted: i=1; AJvYcCVaDmqsLlsXlCYOwRgfhpXgnHmPbgUn0WWmLs+OBVBlGv9v2FfLkycgLdJuZvRV6liG7TrEbAgY0M2ReHQ=@vger.kernel.org X-Gm-Message-State: AOJu0YzxTKodXlrOQgq2M2JZcy0HVZAOMdF0yWsGBJ8jrlvSnsiGXGXI TD6PevbWeCkAmWLm+3AQzFRC99zSVIJk2xqjPNYesK+qXkfVvKXtSKr3aleEOUXZU80= X-Gm-Gg: ASbGnctJDOjWg7MY8krQmkWM1WS5QJqGTYAWGL/SVPx81nnH1G5T6m0P59TsgfSRgIP 7n/EThi09ue+TSEHDTiFIXihS0LR+PyuAKHKIpKF+8LvqGY3R8LJLPkAZcL4gQYT4Bvz0bwbFht mEfHB+5DeoZYvk/knhMIHyHASc9NjK/+HL8+zn7uASY5S7DMBTEelL/KHXgtyrv9ZLudDT/Mxgk lh3DBD610m3MZ4lkD+ktUU9f+vCJHwoSAtvvAl0N5wMQ8Ky/rqlPDubVoSgTkFjkS7LGjaYBRQN LRc+MWgAO1cRAIW2DW+VKfSPCuBbQGe56kSRZLaLCvnk0ku9qpGjk0HzDuHCrZOEnF2dJynZyDS c4jVFZgsM1tp1PAzohsHHq1j/bfuIdGwaX6m3KIPQh1UJY2OcE6t/E9oIZBA9ApLFKX+HwbsdTG ONxaYHQ+hy2H3T01Zt0OgucXfyz+Xd1XgWPd62EqemtmJ160TycTZdEbc= X-Google-Smtp-Source: AGHT+IFwycBqDK/MPavB8G4BR9E3C2atxDC6Fo7M4NKNuTfl2rx4e6P8+xg4h4rSnxEx94PbV5suKA== X-Received: by 2002:a05:6a20:a123:b0:324:6e84:d170 with SMTP id adf61e73a8af0-334a856d518mr32518220637.15.1761186250263; Wed, 22 Oct 2025 19:24:10 -0700 (PDT) Received: from DougS18 (s66-183-142-209.bc.hsia.telus.net. [66.183.142.209]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b6cf4e12d6asm488383a12.21.2025.10.22.19.24.09 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 22 Oct 2025 19:24:09 -0700 (PDT) From: "Doug Smythies" To: "'Sergey Senozhatsky'" Cc: "'Rafael J. Wysocki'" , "'Christian Loehle'" , "'Linux PM'" , "'LKML'" , "'Artem Bityutskiy'" , "'Tomasz Figa'" , "Doug Smythies" References: <4687373.LvFx2qVVIh@rafael.j.wysocki> <5f0aa630-b30a-44c4-a52c-e08179cd3bf9@arm.com> <28ecb23b-ecee-409a-9771-24f801081d07@arm.com> <001801dc4041$607c19f0$21744dd0$@telus.net> <001201dc4297$3903af70$ab0b0e50$@telus.net> In-Reply-To: Subject: RE: [PATCH v1] cpuidle: governors: menu: Predict longer idle time when in doubt Date: Wed, 22 Oct 2025 19:24:11 -0700 Message-ID: <001d01dc43c4$1f131eb0$5d395c10$@telus.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Content-Language: en-ca Thread-Index: AQEHjVQKCrlPynWgLAaVpIarC+pGJQGZtDQKAi3SGCUCWYi7hgLZuqUGAZPsdfIBj3Y3eQKrbtlkAf5ekF218ivVcA== On 2025.10.22 01:01 Sergey Senozhatsky wrote: > On (25/10/21 07:30), Doug Smythies wrote: >> For your system booted with "base" and "revert" do: >> >> echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor >> echo 2300000 | sudo tee /sys/devices/system/cpu/cpufreq/policy*/scaling_max_freq > > Alright, here are the results: > > ~ # echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor > performance > ~ # echo 2300000 | sudo tee /sys/devices/system/cpu/cpufreq/policy*/scaling_max_freq > 2300000 > > Base: 52.5 > Revert: 45.5 So, still 15.4 %. Thank you very much. I wish I could create a test that would show such results on my test computer and believe me I have tried. I haven't been able to. ... Doug