From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fra-out-010.esa.eu-central-1.outbound.mail-perimeter.amazon.com (fra-out-010.esa.eu-central-1.outbound.mail-perimeter.amazon.com [63.178.143.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9CB7B35E55B for ; Mon, 2 Feb 2026 11:08:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=63.178.143.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770030505; cv=none; b=YOZyvddReI+s2Hj+lrD4oeN1ipkSmVb4CZXTu9KXjLGNEvmFQLsLKJ6vtnBHZSRWqLTReDftcOPscN61KB2bdVriEguTsmxf1gS/TmKhwQGVX1ay7zcm3m7QuZqII5I+B7CpD1Y2i07MOhAWz5P3bAsxQgAkL9BikoTfSma1ydY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770030505; c=relaxed/simple; bh=hbzPwTBCJmXEjFWV8MBvVM/UZS1tAjj8t5Vjqb92TRE=; h=Subject:Message-ID:Date:MIME-Version:To:CC:References:From: In-Reply-To:Content-Type; b=ekfCDatjx9gr/gmLJ0EPdgty/uQSdaW4J/oMGZwvzO7+VlaQqlKW30/95XTfuPGuTdpesDZQFPxFBm5YunFeJ1czol0vZcdx2cVzCGUxLu/Sk08o03hL/rCuKrf/Bwl7o4D0d5myQv86N3jw4cH6dRI3/F8x4OrFFDXBawaCnA4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.com; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b=bq9ZsGu8; arc=none smtp.client-ip=63.178.143.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b="bq9ZsGu8" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1770030503; x=1801566503; h=message-id:date:mime-version:to:cc:references:from: in-reply-to:content-transfer-encoding:subject; bh=SC/Dmie+ch01YSbZCegb3yJhhCJiXj0KIdA/YyVQja4=; b=bq9ZsGu8oReXSIRGa5zR0QnDdaU+N2RYqzjjCcbVIU44uucvLgZ3OWsQ D0YhlztqZYUvu2Sx7H48i7nv/UJZpB/Mc4q69D/mrgNeFSrF780CiKDPU Epz+XM5YOu+G2KQNPn0t2UH0XVOai7iQMQsjJZzZg4VyEQBdkKv5g7/P5 T+3EsCXH+C19b+G/9C0vSOw/woLRumqVRA+DOET9TytNtTVTogAQgynX9 KFB6xnLRv80+l6ai3cpM/6WWI694xHx5s5XyrvHYKcb1r79RhmCKp/GTh Y5skTQwLTDlorBh/CYX+nMF0KPV5VXIf1zW2yqMUhujhPk4aXedFNQicV A==; X-CSE-ConnectionGUID: ppLROhqgQtOw3m2nxMx9Jg== X-CSE-MsgGUID: L78j6WexRuSpYlbtIQRXKA== X-IronPort-AV: E=Sophos;i="6.21,268,1763424000"; d="scan'208";a="8679037" Subject: Re: [PATCH 4/4] sched/fair: Proportional newidle balance Received: from ip-10-6-3-216.eu-central-1.compute.internal (HELO smtpout.naws.eu-central-1.prod.farcaster.email.amazon.dev) ([10.6.3.216]) by internal-fra-out-010.esa.eu-central-1.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2026 11:07:58 +0000 Received: from EX19MTAEUB002.ant.amazon.com [54.240.197.224:7518] by smtpin.naws.eu-central-1.prod.farcaster.email.amazon.dev [10.0.11.34:2525] with esmtp (Farcaster) id 818e9dd4-1909-491f-97cf-b42f83cb1626; Mon, 2 Feb 2026 11:07:57 +0000 (UTC) X-Farcaster-Flow-ID: 818e9dd4-1909-491f-97cf-b42f83cb1626 Received: from EX19D018EUA004.ant.amazon.com (10.252.50.85) by EX19MTAEUB002.ant.amazon.com (10.252.51.59) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.35; Mon, 2 Feb 2026 11:07:57 +0000 Received: from [192.168.16.88] (10.106.83.12) by EX19D018EUA004.ant.amazon.com (10.252.50.85) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.35; Mon, 2 Feb 2026 11:07:57 +0000 Message-ID: <6237f4ee-6b07-4d79-8ee7-04e49a4e99b7@amazon.com> Date: Mon, 2 Feb 2026 11:07:56 +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 To: Peter Zijlstra CC: Mario Roy , Chris Mason , "Joseph Salisbury" , Adam Li , Josh Don , , , , , , , , , References: <20251107160645.929564468@infradead.org> <20251107161739.770122091@infradead.org> <8760001e-0274-454c-a4e4-1f38a9695b88@gmail.com> <3ef2a178-db96-4a2c-9e74-44ba81bef030@amazon.com> <20260127084412.GV171111@noisy.programming.kicks-ass.net> <20260129091937.GY166857@noisy.programming.kicks-ass.net> <683b4860-1076-43b8-8fb9-ca8ac26cd8f4@amazon.com> <20260202105144.GC1282955@noisy.programming.kicks-ass.net> Content-Language: en-US From: "Mohamed Abuelfotoh, Hazem" In-Reply-To: <20260202105144.GC1282955@noisy.programming.kicks-ass.net> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: EX19D003EUA001.ant.amazon.com (10.252.50.31) To EX19D018EUA004.ant.amazon.com (10.252.50.85) On 02/02/2026 10:51, Peter Zijlstra wrote: > > OK, that clarifies. > > How does the NI_RATE patch work for you? > > https://lkml.kernel.org/r/20260127151748.GA1079264@noisy.programming.kicks-ass.net Sure I am going to apply this patch and report the results.