From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta1.migadu.com (out-31.mta1.migadu.com [95.215.58.31]) (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 459B83C7DE8 for ; Thu, 20 Aug 2026 07:23:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.31 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787210603; cv=none; b=OyfxuvYoNDResvTlOt4AcxkQ4e+HQ77MLhl3JS2HzpCYhCUhCUZnf+bbWZujPMIooRA10dThiSJNwcw2LtIfepxrk0afxCXnDi2D7e1sTAd+ZNyTweUsGNYdnJeLeoGG/CZ62Apr7eKBIipngLEB6qE+BiBLaLazSERZtecAeWw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787210603; c=relaxed/simple; bh=yDrdZvhVfSgxrwNx2Q+rR673s0csOcfqiHRPcjKz2oo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=mvE8XxnbYOaqsMWIRvgricN1CANiaQbeOPj+HMKvx9R/LuuM5SZXtv8mejyN6Fb74BeXwaJoNnqvo0wD1oqiq4WRQwpshIbdBQ8QK8Jw9GngIQ9uDp1Z7zX16a3Jvixxe6oDCKAZvyt8FEm1n6YGHJRPovGdm6KoNNHdt+iVQPU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=qDySP+PT; arc=none smtp.client-ip=95.215.58.31 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="qDySP+PT" X-Envelope-To: cgroups@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=yDrdZvhVfSgxrwNx2Q+rR673s0csOcfqiHRPcjKz2oo=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1787210594; v=1; x=1787815394; b=qDySP+PT0mqoQ+6RFrI2q08BGpvje2xaEONS7afUniV7lTs034PJ9LByYYuCx4ykNY9044ID 2ztoOL8RoD9EuNhmFQSYXRIESCUMrWS+7XAzgwXGdiKPkoILxDr2dn6V1MgbL/vbF7uhE/0XBUH YOCEtG2Qof3Yk9/iICXvnyp4= X-Envelope-To: cgroups@vger.kernel.org Received: from [192.168.109.140] (223.70.159.239) by smtp.migadu.com with ESMTPS id 4b08d18a9ceac2a8; Thu, 20 Aug 2026 07:23:13 +0000 X-Mizu-Trace-ID: 4b08d18a9ceac2a8 X-Migadu-Flow: FLOW_OUT Message-ID: <7c492eff-46ff-44ef-9309-4a84b6c20645@linux.dev> Date: Thu, 20 Aug 2026 15:23:06 +0800 Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [BUG] sched/fair: divide error in __calc_prop_weight() from the enqueue path (flat-hierarchy series) To: Jake Steinman , K Prateek Nayak Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Waiman Long , Tejun Heo , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org References: <20260818231333.1441757-1-j@metarealtyinc.ca> <20260819132207.2149185-1-j@metarealtyinc.ca> Content-Language: en-US From: Guopeng Zhang In-Reply-To: <20260819132207.2149185-1-j@metarealtyinc.ca> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 在 2026/8/19 21:22, Jake Steinman 写道: ... > > @Guopeng: thanks, the isolcpus=domain reproducer is interesting. I am > not using isolcpus here and have no domain isolation configured, so my > case is not that exact path, but if you want a second machine to test > either of your series on I am happy to run them -- this box reproduces > suspend/resume cycles all day and has 16 CPUs with a P/E/LP-E split, > which may be a useful shape for hotplug edge cases. > Thanks, Jake. I really appreciate the offer. I'll keep it in mind. If I run into a case that I can't reproduce or cover with the machines I have here, I'll reach out and may take you up on it. Thanks again, Guopeng > Thanks, > Jake