From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from imap4.hz.codethink.co.uk (imap4.hz.codethink.co.uk [188.40.203.114]) (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 62FEB15A87C for ; Fri, 25 Jul 2025 17:22:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=188.40.203.114 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753464162; cv=none; b=o1//UGSdkoGqoDZwztSp+l1Z1IQ/8NkwB8hT/Py3CMCIodETHOrJcs28O+I8UR9gVaLqa1wdYUdt7NDa0cP8o/id66332tEEAIGd/WCA8KPy+/jjVBkdPUI6oU8TG/xLLOdD95KhkKjOrHGGe/t2D4U6IR9LiOM8hSqd1GPlRZ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753464162; c=relaxed/simple; bh=8ItQbyhf7NafDWJdAJXNcjoXpLICSLa/FAyONgaFzew=; h=Date:Message-ID:From:Subject:To:Cc:In-Reply-To:References; b=gzDkayUmSFDd/BG/yJJoYaRW1f/x34VMT46M8EllXkp6vzGNAI7VAp21StA607eLqrrfW4O5HxbLyttSYn5Z7K02+K4Z1XtxEDv80Qy925XH22qJQZk61JmfmOLiY5L9lMECUz9kzBRibbq4BQW35xMGV/tNsp6RD++nJyRdbwo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=codethink.co.uk; spf=pass smtp.mailfrom=codethink.co.uk; dkim=pass (2048-bit key) header.d=codethink.co.uk header.i=@codethink.co.uk header.b=UBeQvjGL; arc=none smtp.client-ip=188.40.203.114 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=codethink.co.uk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=codethink.co.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=codethink.co.uk header.i=@codethink.co.uk header.b="UBeQvjGL" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=codethink.co.uk; s=imap4-20230908; h=Sender:References:In-Reply-To:Cc:To: Subject:From:Message-ID:Date:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=4KtHAaTsJ6vRzIFG4bK8UzOFN7UEnidqzX4TKGLUlmg=; b=UBeQvjGLZt1IX0koXmbePMWnEi 1QaQSFS6+HD0IzROa0aOW/N1ExZddK1iBtHfbfkeXeZKL3FASJdxf07ur5fe7cpRyKw2C2GhA5UmA ji92+rA6D7c0OynbkfDFKp4Z+Q3GWHLdeAjzm3a29ZSwGZLRWuXjR09bXtdvBtig94GOhgz6YpBWw HtpoONEcgwxiNethFu89DSwsCGDtts4rFpiboNL+Yr3XbgE6YdxLnUYlI82OnVNwAakx573gp/hL2 w/dxkIj5BHNxQunIA5MCifW/w8yPM33pvkeQdr0C1A2VEe8aWs0aGvvsElNN/vYwJC3AyHhkgtpJ3 dhlkbpQQ==; Received: from [109.54.187.100] (helo=localhost) by imap4.hz.codethink.co.uk with utf8esmtpsa (Exim 4.94.2 #2 (Debian)) id 1ufM7r-002KOk-Dy; Fri, 25 Jul 2025 18:22:31 +0100 Date: Fri, 25 Jul 2025 19:22:30 +0200 Message-ID: <0edd4faab01a9845fd4c847d2e5c465a@codethink.co.uk> From: Matteo Martelli Subject: Re: [PATCH] sched/deadline: Remove fair-servers from real-time task's bandwidth accounting To: Yuri Andriaccio Cc: bsegall@google.com, dietmar.eggemann@arm.com, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, luca.abeni@santannapisa.it, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, vincent.guittot@linaro.org, vschneid@redhat.com, yuri.andriaccio@santannapisa.it In-Reply-To: <20250725152804.14224-1-yurand2000@gmail.com> References: <86013fcc38e582ab89b9b7e4864cc1bd@codethink.co.uk> <20250725152804.14224-1-yurand2000@gmail.com> Sender: matteo.martelli@codethink.co.uk Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hi Yuri, On Fri, 25 Jul 2025 17:28:04 +0200, Yuri Andriaccio wrote: > Hi, > > Thank you very much for your testing, I'm very glad to know that the patch works > as intended. > > At first glance, I think the warnings you are having are related to this bug > report that I posted a few days ago: > https://lore.kernel.org/all/20250718113848.193139-1-yurand2000@gmail.com/ > > Juri Lelli checked it out and made a patch that addresses these warns here: > https://lore.kernel.org/all/20250721-upstream-fix-dlserver-lessaggressive-b4-v1-1-4ebc10c87e40@redhat.com/ > > Have you already applied Juri's patch together with mine? If not, I think it > should solve those issues you mentioned. No, I dind't apply Juri's patch before the previously mentioned tests. I've now applied it on top of yours and I've just rerun the same tests. I confirm that stress-ng and runtime variations commands provide the same results, but that the warnings are not produced anymore. > > Have a nice day, > Yuri > Best regards, Matteo