From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 1E1A71448ED for ; Tue, 16 Jul 2024 08:59:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721120387; cv=none; b=Fv28InjmSQW2K3unImI3nnltn4ahqvYTNBLEQ2f7AUYC1kYCxwGbeYLRikmaomhl2MbEDsm1Cxa5mpTYwMf0WwVLzBsy2wWm/8djckbsXy07qLYnWVjSHtqBirlscLpbcgZWSGZolxF42jJC0GXqLFavtfXKwN81kOkUzBZr6cE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721120387; c=relaxed/simple; bh=vfMZ4OOea8EYEcHwJZTVq7OQ7I5SYY9dGgEUDyxNsaY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YkDSUf6bnJBCw5lpupGvnhclOaRTrLtiMj/TFZ9qEyZR3b3w1EzdrZlwNS79GQGEPYHTTEy20fa87IjlohYO1eFtP2ktS1a5k6Xn+qgMupXif3a3QeObuKPbMWpx/QDUipsDParD6HOnsxBPDcgy5qqm+98Kj7mXKz7hnLaSg6c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=ZVRYIMa8; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ZVRYIMa8" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=jaFiRh7yQfXfw/BcfU9waynT2DYhHakIUKB6SZF5G4c=; b=ZVRYIMa8IUWHPH5hktw25NPQXN SBdLTAH2h17bcg5qY3lSl1j76GHHA8CGILG6L5JUa5V/MOE9XtgueG1UlPhG65wwx0aUmqAfPEH+5 gWgapmGLcMJSCJ8usJe+e3NvpA7O+5RBhQkd7F/jU0q2BG1cZlPJ64cNbZASZZWHzbM0/4QUUIYQT d46EHEoy9thWekrS4lW+uB+xGosY/bOMovY0WT2S8KysrommSq7X+eghgqvljMX287vS8J3POd4s7 GP6+QeIylp7Y3hbKftvUtsyNJ4oMTOS3siZ3UuGUWdRpvDxIBfky1vnrpLhlKIfuXEkNnaQ2i0852 EUmo9nrw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sTe1v-0000000GuUC-1cTu; Tue, 16 Jul 2024 08:59:27 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id F361C3003FF; Tue, 16 Jul 2024 10:59:26 +0200 (CEST) Date: Tue, 16 Jul 2024 10:59:26 +0200 From: Peter Zijlstra To: Xavier Cc: mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, linux-kernel@vger.kernel.org, oliver.sang@intel.com Subject: Re: [PATCH-RT sched v3 0/2] Optimize the RT group scheduling Message-ID: <20240716085926.GP14400@noisy.programming.kicks-ass.net> References: <20240716052543.302383-1-xavier_qy@163.com> 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-Disposition: inline In-Reply-To: <20240716052543.302383-1-xavier_qy@163.com> On Tue, Jul 16, 2024 at 01:25:41PM +0800, Xavier wrote: > Hi all, > > Patch 3 fixed the issue with handling tasks with prio set to 0 during > the execution of blktests. *sigh*... are you actually using this horror show? The plan was to scrap this code -- and replace it with something based on deadline servers. Sadly not a lot of people are able to work on that :/