From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 30FBE3FCB26 for ; Thu, 7 May 2026 14:16:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778163392; cv=none; b=ZiadUKdqunNV4JvO0xn/j4Yqfpv1vI41pR3vI1Ll8BzQoamellm0D68BZfS6KXnlaevk9g5A8Mr6KDoHO88yH4kwsTz9BnjXhr/KA7xFfLn15qNRx2AFHu5MVdsZmWlcD6f5Q6yObvvE0IUgkIa0Z/tv7GCd/+5x2qGklxdzA00= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778163392; c=relaxed/simple; bh=d+ooHK6j+OggIgEIVw7gn6zMqHwVQ+2wNzBMIQLqy4A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bc7HH1pu+P1Ds6ozSoOOU119crpebjNgfLWh4hgbXfX2kNFSHS7rpfz7OiSRJ68XV7/wkjfOsCKgWgQVlrBWvr2h5Twy6URSfJPbUnlji+TF8ClHtsu+4CnjG9juN1+L4Ty3nNqCn9e6T2FSiFxa0bMWDYhXBoBKlLLt4zO0ukg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (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=NZHBA2k8; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (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="NZHBA2k8" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=v9D9hDddP3HiTsEaryxpu8cil2zsIccuFeNxM6YtLKM=; b=NZHBA2k80hsm3w7l8zfrPh6vL6 MEsvHdGRPsHGIpJghTF2Sp9Iq9lrSZpe69z6veqJPOdVvFMyUDyteHeqxbGCNm9hmk6nRqj5wOJgo QyYWyzxxxKuyTR6epknuBkAzqjF/dG3OtoPDPi9lnUGI/oFMT1/DAEyqzVoCnkzaD0fa5Rve5SNO0 M1f2YfclvmntBa6Fm14CNo+XrFBiG9fx7YxUMH1EIMbYEvuc9jrPH7iEzyCbObOkebZoLkRYaN5Se d7zfNU6x0E3vLF9A/BdnQAX0nn4XSSb7zBLqZ0AykS0qXT9pR2DwIARi4NTM57I+2o7i0/4UcbvYX o3dAtzow==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKzWa-00000003jss-2R03; Thu, 07 May 2026 14:16:25 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id EFEB2300882; Thu, 07 May 2026 16:16:23 +0200 (CEST) Date: Thu, 7 May 2026 16:16:23 +0200 From: Peter Zijlstra To: luca abeni Cc: Yuri Andriaccio , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , linux-kernel@vger.kernel.org, Yuri Andriaccio Subject: Re: [RFC PATCH v5 18/29] sched/core: Cgroup v2 support Message-ID: <20260507141623.GK3102624@noisy.programming.kicks-ass.net> References: <20260430213835.62217-1-yurand2000@gmail.com> <20260430213835.62217-19-yurand2000@gmail.com> <20260505145922.GD3102624@noisy.programming.kicks-ass.net> <20260506215802.4b4130ce@nowhere> <20260507070103.GF3126523@noisy.programming.kicks-ass.net> <20260507153055.33cc4415@nowhere> 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: <20260507153055.33cc4415@nowhere> On Thu, May 07, 2026 at 03:30:55PM +0200, luca abeni wrote: > > The interface only exposes runtime and period, as such we can only > > configure strict periodic servers (with implicit deadline). And I'm > > thinking this makes sense, esp. to start off with, but I also think it > > makes sense to explicitly call that out. > > Ah, I understand now: you are thinking about SCHED_DEADLINE with > deadline